2026 data CMS NPPES NUCC Taxonomy

Doctors in Ann Arbor, MI

Compiled from official public sources by the PlainDoctor editorial team.

Active healthcare providers in Ann Arbor sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

14,998
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Student in an Organized Health Care Education/Training Program
Top specialty
1,524 providers
Michigan
State
MI

14,998 healthcare providers across 20 specialties

Ann Arbor, Michigan appears in the CMS National Plan and Provider Enumeration System with 14,998 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Ann Arbor - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Ann Arbor practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Ann Arbor is weighted toward Student in an Organized Health Care Education/Training Program (1,524 clinicians, followed by Clinical Social Worker with 1,110 and Behavior Technician with 963). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Michigan's population, Ann Arbor reports roughly 149.4 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Within Michigan, Ann Arbor ranks #4 of 509 cities tracked by provider count, accounting for 5.5% of the state's registered providers. Of Michigan's most common specialties, Family Medicine Physician is the most prominent one with no provider currently listing a Ann Arbor practice address, a coverage gap Ann Arbor patients typically fill by traveling to a larger nearby hub.

For Ann Arbor patients, this directory is most useful as a starting shortlist, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

14,998
Providers
20
Specialties
#4
of 509 MI cities
5.5%
of MI providers
149.4
Per 100K (state)

Which specialties are most common in Ann Arbor

Student in an Organized Health Care Education/Training Program 1,524
Clinical Social Worker 1,110
Behavior Technician 963
Internal Medicine Physician 842
Physician Assistant 530
Nurse Practitioner 470
Social Worker 411
Anesthesiology Physician 372
Pediatrics Physician 368
Physical Therapist 347
Clinical Psychologist 342
Registered Nurse 341
Certified Registered Nurse Anesthetist 333
Pharmacist 286
Dentist 281
Psychiatry Physician 220
Occupational Therapist 207
General Practice Dentistry 207
Diagnostic Radiology Physician 202
Emergency Medicine Physician 202

Healthcare Providers (Page 100)

Name
Nicole Grennell, FNP-C
Family Nurse Practitioner
Alison Grenon
Clinical Psychologist
Sara Greschuk, LMSW
Clinical Social Worker
Veronica Greve, CGC
Genetic Counselor (M.S.)
Hannah Grewal, PA-S
Student in an Organized Health Care Education/Training Program
Harneet Grewal, BDS,DDS
Pediatric Dentistry
Rinko Grewal, DO
Internal Medicine Physician
Dina Griauzde, MD
Internal Medicine Physician
Janice Grichor, RD
Registered Dietitian
Anita Griffin, LMSW ACSW CAC1
Clinical Social Worker
Brandi Griffin, AUD
Audiologist
Kara Griffin, PA-C
Physician Assistant
Andrea Griffith, NP
Nurse Practitioner
Brian Griffith, MD
Student in an Organized Health Care Education/Training Program
Diane Griffith, MSW
Social Worker
Maryann Griffith, DDS
Dentist
Robert Griffith
Social Worker
Angela Griffiths, CRNA
Certified Registered Nurse Anesthetist
Ronald Grifka, MD
Pediatrics Physician
Wendy Grigg, CRNA
Certified Registered Nurse Anesthetist
Jennifer Griggs, MD, MPH
Internal Medicine Physician
David Grillo, MSW
Clinical Social Worker
Jamie Grillo
Electroneurodiagnostic Specialist/Technologist
Lisa Grilly, MD
Anesthesiology Physician
Andrew Grim, MD
Pediatrics Physician
Connor Grimes, D.D.S.
Student in an Organized Health Care Education/Training Program
Jane Grimes, OTRL
Occupational Therapist
Katelyn Grimes, MS, ATC
Athletic Trainer
Spring Grimes, SW LBSW
Social Worker
Cynthia Grimston, PA-C
Physician Assistant
Sharon Grob, MSW
Marriage & Family Therapist
Nicole Grode
Behavior Technician
Celia Groenhout, MD
Anesthesiology Physician
Suzanne Groff, FNP
Family Nurse Practitioner
Anna Groff Dabreo
Behavior Technician
Patrick Grohar, MD, PHD
Pediatric Hematology & Oncology Physician
Megan Gron
Behavior Technician
Christopher Grondin, M.D.
Internal Medicine Physician
Kirsten Groody, MD
Anesthesiology Physician
Angelia Groom
Specialist
Claire Groom
Behavior Technician
Thomas Groom, DDS
Dentist
Ellen Grosh, M.D.
Child & Adolescent Psychiatry Physician
Barry Gross, MD
Body Imaging Physician
Evan Gross, PHD
Clinical Neuropsychologist
Milton Gross, MD
Internal Medicine Physician
Sophie Gross
Social Worker
Tia Gross
Clinical Social Worker
Paul Grossman, MD
Internal Medicine Physician
Traci Grossman, PA-C
Student in an Organized Health Care Education/Training Program

Nearby Cities in Michigan

Other Michigan cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Ann Arbor, MI?
There are 14,998 registered healthcare providers in Ann Arbor, MI, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Ann Arbor?
The most common specialties in Ann Arbor are Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Behavior Technician, Internal Medicine Physician, Physician Assistant. Student in an Organized Health Care Education/Training Program has the most providers with 1,524.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the PlainDoctor editorial team.