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Active NPI 1164488805 Individual Practitioner Male Practitioner

Dr. John Zaven Ayanian , MD

Internal Medicine • Ann Arbor, MI

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. John Ayanian, MD is a certified Internal Medicine practicing in Ann Arbor, MI. With approximately 39 years of clinical experience since graduating from Harvard Medical School in 1987, Dr. Ayanian delivers high-quality medical care to the local community at 1500 E MEDICAL CENTER DR.

Dr. Ayanian is affiliated with Regents Of The University Of Michigan and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1500 E Medical Center Dr

Ann Arbor, MI 481095000

Telephone 7349364000
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Harvard Medical School

Graduation Year

1987

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Ann Arbor, MI

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
39 Yrs +19.7 yrs vs City Avg
City Avg: 19.3 Yrs
State Avg: 26.5 Yrs
Regional Practice Density
496 Specialists

Practicing in Ann Arbor, MI (6010 Statewide)

Telehealth Adoption Rate
20.4% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
27.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ayanian (39 Years) 39 Yrs
Ann Arbor Specialty Average (19.3 Years) 19.3 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes
15 15 $87.33 $66.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
13 11 $139.23 $97.76

Medical Specialties & State Licenses

CMS Verified: 2019-12-12
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MI 4301104623

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License MA 72339

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Hospital & Practice Group Affiliations

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Fl Rec D, Ann Arbor, MI 481095000

Phone: 7347645175

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 3rd Fl Taubma, Ann Arbor, MI 481095000

Phone: 7346477321

Regents Of The University Of Michigan

1500 E Medical Ctr Dr, Ann Arbor, MI 481090999

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Fl, Ann Arbor, MI 481095000

Phone: 7349364185

Regents Of The University Of Michigan

1500 E Medical Ctr 2nd Floor Rec, Ann Arbor, MI 481090999

Phone: 7349365020

Regents Of The University Of Michigan

1500 E Medical Ctr Dr, Ann Arbor, MI 481095000

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 2nd Lr, Ann Arbor, MI 481090999

Phone: 7347635459

Regents Of The University Of Michigan

1500 E Medical Ctr Dr Level B, Ann Arbor, MI 481090999

Phone: 7346478901

Regents Of The University Of Michigan

1500 E Medical Ctr, Ann Arbor, MI 481090999

Phone: 7349365738

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Fl Rec F, Ann Arbor, MI 481095000

Phone: 7347645176

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Floor, Ann Arbor, MI 481090999

Regents Of The University Of Michigan

1500 E Medical Ctr Dr 1st Flo, Ann Arbor, MI 481090999

Regents Of The University Of Michigan

1500 E Medical Ctr Dr B2 Floor R, Ann Arbor, MI 481090999

Phone: 7349366274

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Dr. Sameer Saini , MD

Internal Medicine - Gastroenterology

NPI 1003039124

Doctor of Medicine (M.D.)

Dr. Kyle Perry , MD

Pathology - Cytopathology

NPI 1003053901

Doctor of Medicine (M.D.)

Dr. Michael Watson , MD

Pediatrics - Pediatric Infectious Diseases

NPI 1003092040

Doctor of Medicine (M.D.)

Denise Berry , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003128356

Certified Registered Nurse Anesthetist

Dr. Ketti Petersen , MD

Family Medicine - Hospice and Palliative Medicine

NPI 1003128919

Doctor of Medicine (M.D.)

Katherine Mccormack , PA-C

Physician Assistant

NPI 1003167321

Physician Assistant (Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events
📍
Updated Practice Location December 12, 2019

Registered at 1500 E MEDICAL CENTER DR, ANN ARBOR, MI 481095000 (Tel: 7349364000)

📍
Updated Business Mailing Address December 12, 2019

Registered at 3621 S STATE ST, ANN ARBOR, MI 481081633 (Tel: 7346475299)

NPI Profile Active September 22, 2014

NPI status registered as active in NPPES database

📍
Updated Practice Location September 22, 2014

Registered at 1500 E MEDICAL CENTER DR, 3RD FLOOR TAUBMAN CENTER RECP B, ANN ARBOR, MI 481095000 (Tel: 7349365582)

📍
Updated Business Mailing Address September 22, 2014

Registered at 3621 S STATE ST, 700 KMS PLACE, ANN ARBOR, MI 481081633 (Tel: 7349362047)

👤
Provider Name / Credentials Updated September 22, 2014

Recorded as JOHN AYANIAN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 22, 2014

Internal Medicine (License #4301104623 in MI)

🟢
Initial NPI Registration & Enumeration April 21, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1164488805
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 21, 2006
Last Update: December 12, 2019
Sole Proprietor: No

Mailing Address

3621 S State St

Ann Arbor, MI 481081633

Phone: 7346475299

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.