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 169)

Name
Emily Marlow, DDS
Dentist
Marie Marolf, ACSW LMSW CAAC
Addiction (Substance Use Disorder) Counselor
Zuzanna Maroszek
Behavior Technician
Nicole Marquand, M.D.
Student in an Organized Health Care Education/Training Program
Mary Ann Marquardt, LMSW
Mental Health Counselor
Lauren Marquette, MD
Surgery Physician
Hector Marquez, MD
Diagnostic Radiology Physician
Liana Marquis, MD
Hospitalist Physician
Ruby Marr, MD
Internal Medicine Physician
Vanessa Marr, PHD
Clinical Social Worker
Santina Marras, CRNA
Certified Registered Nurse Anesthetist
Arthur Marroquin, PH.D.
Psychologist
Vanessa Marry, LMSW
Social Worker
Ashley Marsh, PSYD
Clinical Psychologist
Blake Marsh, CRNA
Certified Registered Nurse Anesthetist
Elizabeth Marsh, PA
Physician Assistant
Erica Marsh, MD
Reproductive Endocrinology Physician
Gerald Marsh, CRNA
Certified Registered Nurse Anesthetist
Karen Marsh, CCHW CNA RMA
Nurse's Aide
Marcela Marsh, PA-C
Physician Assistant
Amanda Marshall, RN
Gastroenterology Registered Nurse
Candice Marshall, LLMSW
Clinical Social Worker
Christianne Marshall, PA-C
Physician Assistant
David Marshall, PH.D.
Clinical Psychologist
Derrick Marshall, LMSW
Clinical Social Worker
Giselle Marshall, M.D.
Diagnostic Radiology Physician
Jennifer Marshall, LMSW
Social Worker
Jessie Marshall, M.D.
Internal Medicine Physician
Steven Marshall, CRNA
Certified Registered Nurse Anesthetist
Thomas Marshall, DDS, MS
Prosthodontics
Steffanie Marsonek, NP
Acute Care Nurse Practitioner
Kyriaki Marti, DMD, MD, PHD
Oral and Maxillofacial Surgery (Dentist)
Aubrey Martin
Student in an Organized Health Care Education/Training Program
Blair Martin, LPN
Licensed Practical Nurse
Brent Martin, DMD, MS
General Practice Dentistry
Caitlin Martin, MSW
Social Worker
Christina Martin, LMSW
Clinical Social Worker
Christopher Martin, MD
Psychosomatic Medicine Physician
Claire Martin
Behavior Technician
Constance Martin, REGISTERED NURSE
Registered Nurse
Donald Martin, M.D.
Pediatrics Physician
Donna Martin, MD
Clinical Genetics (M.D.) Physician
Frances Martin
Clinical Social Worker
Gayla Martin
Health Educator
Jane Martin
Behavior Technician
Kaitlin Martin, LLPC
Mental Health Counselor
Katelyn Martin, DO
Student in an Organized Health Care Education/Training Program
Katie Martin, PA
Physician Assistant
Kelly Martin
Social Worker
Kristina Martin
Behavior Technician

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.