John Walter Layher

John Walter Layher, MD

Cardiology, Internal Medicine

Provider Groups

  • St. Mary's Medical Group

Primary Contact

(706) 389-3440
Appointments (New Patients Welcome)
Provider Groups
  • St. Mary's Medical Group

Primary Contact
(706) 389-3440

Services & Specialties

Areas of Specialization

  • Cardiology
  • Internal Medicine

Locations & Contact

Primary Location

Oconee Heart & Vascular Center - Greensboro

1110 Commerce Dr
Ste 108
Greensboro, GA 30642

View hours
Monday
8:30am - 5:00pm
Tuesday
8:30am - 5:00pm
Wednesday
8:30am - 5:00pm
Thursday
8:30am - 5:00pm
Friday
8:30am - 1:00pm
Oconee Heart & Vascular Center - Greensboro

About

Dr. Layher received his Bachelor of Science degree with cum laude honors in 1986 and Master of Science degree in 1987, both from Indiana State University. He received his medical degree from Indiana University School of Medicine in 1991 and was elected to Alpha Omega Alpha Medical Honor Society. Dr. Layher completed his Internal Medicine residency at Vanderbilt University in 1994. Dr. Layher went on to complete his fellowship training in Cardiology at Indiana University School of Medicine’s Krannert Institute of Cardiology in 1997.

Dr. Layher is Board Certified by the American Board of Internal Medicine in Cardiovascular Disease and holds numerous other subspecialty certifications including Nuclear Cardiology, Echocardiography, Cardiac CT imaging, as well as Pacemaker and Defibrillator placement. He is a certified Cardiac Device Specialist and member of the Heart Rhythm Society. Dr. Layher is also a member of the Society of Cardiovascular CT, The American Society of Echocardiography, American Society of Nuclear Cardiology, and a Fellow of the American College of Cardiology.

Dr. Layher is a founding member of Oconee Heart and Vascular Center and serves as Vice President of Cardiac Services for St. Mary’s Medical Group and Oconee Heart and Vascular Center. He is an Assistant Clinical Professor of Medicine and Cardiology Subspecialty Director for the Internal Medicine Residency Program, a joint effort of the GRU/UGA Medical Partnership and St. Mary’s Health Care System.

Additional Resources

Education & Certifications

Education

Education:
Indiana University School of Medicine (1991)

Internship:
Vanderbilt University Medical Center (Internal Medicine) (1992)

Residency:
Vanderbilt University Medical Center (Internal Medicine) (1994)

Fellowship:
Indiana University (Cardiology) (1997)

Board Certifications

Cardiovascular Disease, American Board of Internal Medicine Subspecialty Cardiovascular Disease (1997)

Cardiology, American Board of Internal Medicine Subspecialty Cardiovascular Disease (1997)

Provider Groups

St. Mary's Medical Group

Medical Group

THMG

Provider Ratings

The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy. Learn More >

4.9 out of 5

(424 ratings)

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

152 Reviews

02/17/2026

Appreciate his locating at Lake Oconee.

02/17/2026

I had a very scary emergency to me! They worked me in to see the Dr. and Dr. Layher made me feel so good and everything was going to be alright.

02/16/2026

Great

02/06/2026

Dr Layher presented his analysis and recommendations in an easy to understand way and answered all of my questions. He's very comfortable to talk with and very confident in his knowledge.

02/06/2026

attentive staff

02/05/2026

I feel very confident in Dr. Later and his treatment.

02/05/2026

Dr Layher explained my test results in a way that I understood

02/05/2026

Outstanding physician!

02/04/2026

Dr Layher has always been helpful, answers our questions in a manner that we understand, has never rushed us through, follows through in our care.

02/02/2026

Dr Layher and his team are the best this side of Heaven!!

02/02/2026

I'm so glad I saw an excellent cardiologist instead of relying on primary care doctors for 30 years who didn't really help me maintain a good blood pressure.

01/30/2026

Good

01/30/2026

Great service and treatment!

01/29/2026

Hope he is my forever provider

01/27/2026

It was a new patient visit. I was pleased with the appointment.

01/27/2026

I like the way he explains his intentions and how the problem that I have can/will be approached.

01/22/2026

Dr. Layher took time to answer all questions and did not rush

01/20/2026

Dr Layher is very easy to talk to and listens to my questions

01/19/2026

Very pleasant and friendly. Greeting with a smile. Not in a hurry to end the appointment. He had a willingness to answer all my questions. Showed a sense of humor and made eye contact with a smile. Very professional.

01/08/2026

The man basically saved my life. When I told him my symptoms he immediately knew something was amiss and sent me for a stress test. I needed a triple bypass and now, because he listened, I am still here.

01/08/2026

great job!

01/05/2026

Good at answering questions.

01/05/2026

He made me feel at ease. It was my first time seeing him and I usually an not that way when I see a doctor.

12/30/2025

I appreciate that Dr. Layher is willing to take time with me and answer all questions and not make me feel rushed.

12/30/2025

great!

12/23/2025

Dr Layher was excellent. I did not like the nurse who took my vitals. She did not value me as a patient.

12/23/2025

Been my heart Dr now for over a year.

12/22/2025

I love Dr. Layher, he's a very good Doctor that cuts no corners and let you know what to do.

12/19/2025

He’s a good man. Treats you like you’re equal to him. I can talk to him about anything.

12/16/2025

everything is good

12/15/2025

I will continue to obtain the services Dr. Layher. He is excellent.

12/15/2025

Dr. Layher is one of the kindest and most caring people I have ever met. He probably spends more time with each patient than he should. He is an excellent doctor. I highly recommend him

12/11/2025

Dr. Layher is very attentive and always has time to answer my questions. He’s not ‘in it for the money.’ He really cares.

12/09/2025

Dr. Layher is very intelligent and passionate about cardiology. He listens to questions and answers them comprehensively and in a way that is easily understood by a non-medical person. He is friendly and never seems rushed or impatient. I feel lucky to have Dr. Layher as my Doctor.

12/04/2025

He gets you in and give good service and get you out in timely manner.I like that.

12/02/2025

It is my hope that Dr. Layer will allow me to receive the injectable he recommended by scheduling a monthly visit to his office.

11/25/2025

Excellent Cardiologist!

11/25/2025

Great Heart Doctor

11/24/2025

He’s thorough, didn’t rush me and explained everything so I could understand.

11/20/2025

Have been seeing Dr. Layher for many years and he is a really good doctor. Listens well and seems to care about his patients. In general, his practice and associates are doing a really good job.

11/19/2025

I am very happy and totally satisfied with Dr. Layher as my physician for any heart issues.

11/12/2025

Great and to the point. I love there was not horsing around the point

11/07/2025

Dr. Layher has been my Cardiologist for more than 12 years and during that time he has provided me with exceptional service including two pacemaker operations. I would not trust any other Cardiologist with my life as I do with Dr. Layher.

11/07/2025

Dr Layer is an outstanding physician and an even better person. He has cared for me and about me for close to twenty years and will continue to be my cardiologist of choice as long as I breathe, or until he retires😁

11/03/2025

Very knowledgeable doctor. He provided me with referrals outside of his practice. He is a good listener and offers the support you need as a patient. Highly recommended!

10/30/2025

Pleased to meet Dr. Layher and appreciate his guidance.

10/29/2025

He is very caring. He makes you feel comfortable and answers all your questions .

10/28/2025

I had a very positive experience this morning; if you need cardiac care, this is your place.

10/27/2025

Great Team at this practice. Focused on the patient.

10/24/2025

Thanks!

10/23/2025

I appreciated Dr. Layher’s expertise and thorough evaluation and proposed follow up.

10/23/2025

100 %

10/20/2025

We respect and appreciate him and his staff.

10/16/2025

The only complaint (as with all Dr. offices) is that they expect us to arrive early and then we have to wait so long in waiting room and in the examining rooms for THEM to show up!

10/16/2025

Dr. Layher is excellent. He and his staff are professional, courteous and extremely competent.

10/16/2025

Doctor knew my history and cared

10/06/2025

Highest marks across the board in all categories!

10/06/2025

I'm very relaxed when I talk to him .

10/03/2025

very professional and considerate, also very knowledgeable

10/03/2025

My husband & I both are patients of Dr. Layer. We both trust him completely - two happy patients!

10/01/2025

Nurse practitioner very good too

09/30/2025

As always my experience was a great one with Dr. Layher.His entire office staff....from the Ladies at the front counter..to the Professional staff members who saw me before Dr. Layher came in....always a great experience.

09/29/2025

I forgot to mention in earlier comments: I never felt rushed with Dr Layher. He took his time asking me questions and listening and then talking to me unhurriedly about all of my concerns. He seemed genuinely interested in me, as a person.

09/23/2025

Dr Layher is an exceptional physician!!!

09/22/2025

Dr. Layher is The Best. I couldn’t have a better cardiologist. Kind, patient, professional, concerned.

09/19/2025

Appreciate having this care in our community.

09/16/2025

Good!

09/10/2025

Refer many friends to him

09/09/2025

Great doctor need more album

09/09/2025

Could not ask for a better Dr , he is the best totally trust him as far as my health is concerned.

09/08/2025

Excellent service per entire staff

09/08/2025

very through

09/05/2025

He is always kind and curtious to me.gets to the point and move on to the next patient.IAppriate him

09/05/2025

Patient, thorough explanations.

09/03/2025

Excellent medical practice

08/28/2025

Always professional and supportive.

08/26/2025

Great doctor

08/25/2025

satisfied

08/21/2025

Would recommend to anyone

08/21/2025

Gave options with no pressure.

08/20/2025

Dr. Lather was extremely matter of fact, opening his statement remarking I was 80. Ended the visit with “you came in for atrial fibrillation” to be clear I did not. I was referred by my primary care provider for a symptom was was experiencing. He looked at the monitor for most of the time in between.

08/19/2025

He is a professional in his skill and a good listener to the concerns I had.

08/15/2025

The best and very professional

08/14/2025

I have recommended Dr Layher to several others.

08/14/2025

Everyone is great.

08/12/2025

Dr. Layher is very good at explaining everything. He also listens and responds to your questions! Dr. Layher is an awesome doctor!

08/12/2025

Great Dr

08/12/2025

Awesome doctor

08/08/2025

The doctor discovered something no one else had noticed and which might prove to be important. Prescribed tests to be done.

08/05/2025

PA was very interested in my dad. Very nice

08/04/2025

Excellent experience

08/04/2025

Absolutely, great professional and provider. Save my life by reading a very complicated EKG and getting me to the Cath Lab and 4 bypass cabbage.

08/01/2025

Very good

08/01/2025

Very nice and will explain things when asked

07/31/2025

I was informed clearly of any changes in my treatment and medications. Everything was explained to my understanding and answered all questions I had. Very polite and courteous personnel and office staff.

07/30/2025

He explained information and I understood it.

07/29/2025

I like him-- very brief and the point

07/29/2025

Pleasure to meet Dr. Layher.

07/28/2025

I have very high confidence in Dr Layher.

07/24/2025

Excellent Cardiologist, leader and man!

07/22/2025

His skill and that of others he referred me to literaly saved my life

07/21/2025

I have relied on him for five years he’s very good.

07/11/2025

good visit addressed each of my questions

07/10/2025

Highly recommend…❤️

07/10/2025

Very knowledgeable

07/08/2025

Glad he is in the area!!

07/07/2025

Keep up the good work!

07/03/2025

I've been seeing Dr Layher almost 6 years now. He has always been direct, informative, respectful and pleasant. I couldn't ask for better.

07/03/2025

BEST Doctor ever! We love Dr. Layher!

07/01/2025

I believe he truly cares for my health

07/01/2025

Very happy with my experience with this provider

06/30/2025

Very satisfied

06/30/2025

I respect Dr. Layher's medical knowledge and have confidence in his judgement.

06/23/2025

All is good,thank you.

06/23/2025

I am happy to have Dr. Layher for my Cardiologist.

06/23/2025

Great experience.

06/19/2025

really covered all concerns thourghly and good amount of time spent explaining things

06/17/2025

Helped us with end of life questions

06/04/2025

appreciate Dr Layher very much

06/04/2025

I was AMAZED at the caring concern for me by Dr. Layher and his PA

05/27/2025

Dr. Layher is very respectful and he always listens and explains anything so that I understand. I think he's great!!

05/27/2025

Glad to have a heart doctor locally

05/19/2025

I feel so fortunate to have Dr. Layher. He is interested in getting you to your best health.

05/16/2025

The staff in this office are very kind, helpful and professional. We are lucky to have this practice in our small town

05/16/2025

Everything was good

05/15/2025

Really like the people!!

05/15/2025

Cared to listen to my remarks

05/15/2025

Experienced compassionate, never condescending, thorough

05/13/2025

Very caring individual. Made me feel comfortable as this was my first visit.

05/05/2025

Have always had a good experience with Dr. Layher and his staff.

05/05/2025

this is the best heart and medical advice doctor I have ever had the pleasure of utilizing.

05/02/2025

I trust Dr. Layher and his staff with my life.

05/02/2025

Gives good advice based on a combination of qualifications and experience

05/02/2025

The entire experience was very pleasant.

05/01/2025

Always courteous, caring , & professional

04/29/2025

AS I noted , Dr Layher takes time to listen, asks questions, and explains situation. He also involved me in decision making. Excellent!

04/28/2025

Thks Thks for the service and help

04/24/2025

Always goes over history and assesses current vsrisbles

04/17/2025

I was very impressed by Dr. Layher and hope to continue under his care in the future as needed.

04/15/2025

Dr. John Layer consistently goes above and beyond in his care. He listens attentively and explains things clearly.

04/08/2025

Very knowledgeable and pleasant

04/03/2025

all very good

04/03/2025

Support staff and professional staff excellent

04/03/2025

Jennifer is an excellent part of the group

04/01/2025

very pleased

04/01/2025

Everything positive.

03/27/2025

Very professional and great care for patient

03/26/2025

Everyone is just great

03/25/2025

I was very impressed with the very little time I had to wait for Dr Layher to come into the room

03/24/2025

Always the best..

03/21/2025

Great MD! Very attentive

03/20/2025

Dr Layher explained answers to my questions in a way I could understand them
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