Doctors and health care providers in Ann Arbor, MI
15,616 individual NPPES records list a practice address in Ann Arbor, 4th of 515 Michigan cities. The largest group is clinical social worker: 1,236, 8% of the city's records, against 6% across Michigan. Page 103 of 313.
The 8 largest groups in Ann Arbor
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Ann Arbor in Michigan
- Rank in Michigan4th of 515 cities by records
- Share of the state5.5% of Michigan's records
- Specialties present25 or more taxonomy codes
- Top three groups22.1% of all records
- Clinical Social Worker rank3rd of the 10 Michigan cities with the most
Compared with Michigan as a whole, Ann Arbor has 4.2× the state's share of anesthesiology physician records and 0.29× its share of behavior technician records.
Providers in Ann Arbor, alphabetically
- Mary Gregory, PAPhysician Assistant1649302464
- Anet GreibStudent in an Organized Health Care Education/Training Program1629713599
- Andrew Greifer, PH.D., M.S.W.Clinical Social Worker1780825802
- Lindsey GreigRegistered Nurse1275467672
- Emma Greimann, MDAllergy & Immunology Physician1528704384
- Colin Greineder, MDEmergency Medicine Physician1679648232
- Mary Greiner, DOFamily Medicine Physician1467483024
- Allison Grekin, CNMAdvanced Practice Midwife1376003111
- Rebecca Grekin, PHDClinical Psychologist1982266607
- Rachael GrelockBehavior Technician1205302379
- Sonny Grendel, OTRGerontology Occupational Therapist1790254266
- Paul Grenier, O.D.Optometrist1386608081
- John Grenillo, DCChiropractor1023210358
- Nicole Grennell, FNP-CNurse Practitioner1699322909
- Alison GrenonClinical Psychologist1760210769
- Sara Greschuk, LMSWClinical Social Worker1164882817
- Veronica Greve, CGCGenetic Counselor (M.S.)1689247496
- Hannah Grewal, PA-SStudent in an Organized Health Care Education/Training Program1245003326
- Harneet Grewal, BDS,DDSPediatric Dentistry1730520214
- Rinko Grewal, DOInternal Medicine Physician1659995777
- Dina Griauzde, MDInternal Medicine Physician1194018028
- William Gribbin, MDStudent in an Organized Health Care Education/Training Program1932840931
- Janice Grichor, RDRegistered Dietitian1972641512
- Anita Griffin, LMSW ACSW CAC1Clinical Social Worker1770601890
- Brandi Griffin, AUDAudiologist1235387887
- Bryce Griffin, MDStudent in an Organized Health Care Education/Training Program1902591407
- Kara Griffin, PA-CPhysician Assistant1568054187
- Andrea Griffith, NPNurse Practitioner1417386061
- Brian Griffith, MDStudent in an Organized Health Care Education/Training Program1881257681
- Diane Griffith, MSWSocial Worker1871628420
- Maryann Griffith, DDSDentist1881773471
- Robert GriffithSocial Worker1164897153
- Angela Griffiths, CRNACertified Registered Nurse Anesthetist1164401683
- Ronald Grifka, MDPediatric Cardiology Physician1386624666
- Wendy Grigg, CRNACertified Registered Nurse Anesthetist1265896492
- Jennifer Griggs, MD, MPHHematology (Internal Medicine) Physician1700949609
- Julia Grigorian, MDNeurological Surgery Physician1780318204
- David Grillo, MSWClinical Social Worker1275790354
- Jamie GrilloElectroneurodiagnostic Specialist/Technologist1750747549
- Lisa Grilly, MDAnesthesiology Physician1154538080
- Andrew Grim, MDPediatric Rheumatology Physician1952714875
- Connor Grimes, D.D.S.Student in an Organized Health Care Education/Training Program1790660892
- Jane Grimes, OTRLOccupational Therapist1649486275
- Katelyn Grimes, MS, ATCAthletic Trainer1285031336
- Spring Grimes, SW LBSWClinical Social Worker1275609695
- Cynthia Grimston, PA-CPhysician Assistant1467940817
- Sharon Grob, MSWMarriage & Family Therapist1467514307
- Nicole GrodeBehavior Technician1669005765
- Celia Groenhout, MDAnesthesiology Physician1083624696
- Suzanne Groff, FNPFamily Nurse Practitioner1932695608
The largest Michigan cities
- Farmington Hills36,305
- Detroit19,832
- Grand Rapids18,005
- Novi7,641
- Kalamazoo6,553
How to read this directory
Ann Arbor, Michigan appears in the CMS National Plan and Provider Enumeration System with 15,616 registered healthcare providers spanning 25 or more 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 2024 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 Clinical Social Worker (1,236 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,217 and Behavior Technician with 1,000). 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 155.6 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.
Of Michigan's most common specialties, Family Nurse Practitioner 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. 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; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Ann Arbor, MI?
There are 15,616 registered healthcare providers in Ann Arbor, MI, covering 25 or more 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 Clinical Social Worker, Student in an Organized Health Care Education/Training Program, Behavior Technician, Nurse Practitioner, Physician Assistant. Clinical Social Worker has the most providers with 1,236.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.