NPPES file of Aug 9, 2026

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 97 of 313.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Cassidy Gillay, LLMSWSocial Worker1831064476
  2. Philip Gillen, MDAnesthesiology Physician1275795700
  3. Erin GillespieNurse Practitioner1093673782
  4. Daniel Gilley, LPNLicensed Practical Nurse1316661531
  5. Danielle GilliamBehavior Technician1891376398
  6. Elizabeth Gilliam, MDPediatric Surgery Physician1235525932
  7. Sasha GilliamOther Specialist/Technologist1164342838
  8. Todd Gillihan, O.D.Optometrist1255474045
  9. Bailey Gillim, PAMedical Physician Assistant1033532817
  10. Courtney Gillis, BCBABehavior Analyst1750879607
  11. Margaret Gillis, MDEmergency Medical Services (Emergency Medicine) Physician1477590123
  12. Mary Gillis, M.S.Psychologist1750764130
  13. Brooke GillispieRegistered Nurse1689532012
  14. Stephanie Gillman, PA-CPhysician Assistant1033550926
  15. Jacquelyn GillumCommunity Health Worker1295207686
  16. Robert Gilman, MDPlastic Surgery Physician1154398451
  17. Sid Gilman, MDNeurology Physician1699864561
  18. Amanda Gilmore, CRNACertified Registered Nurse Anesthetist1255662086
  19. Kathleen Gilmore, MDFamily Medicine Physician1538125596
  20. Steven Gilpin, LMSWClinical Social Worker1245707280
  21. Holly GilsdorfClinical Social Worker1295724557
  22. Janet Gilsdorf, MDPediatric Infectious Diseases Physician1831109453
  23. Adrienne GilsonStudent in an Organized Health Care Education/Training Program1760332969
  24. Bruce Gimbel, M.D.Psychiatry Physician1669484887
  25. Deborah Gimbel, LMSWClinical Social Worker1346302163
  26. Elizabeth Ginelli, MDStudent in an Organized Health Care Education/Training Program1841812849
  27. Keith Gingerich, CRNACertified Registered Nurse Anesthetist1114972742
  28. Sarah Ginsberg, ED.D., CCC-SLPSpeech-Language Pathologist1598910713
  29. David Ginsburg, MDClinical Genetics (M.D.) Physician1215018759
  30. Lindsey GinsterBehavior Technician1821603143
  31. Bruno Giordani, PHDClinical Psychologist1790857217
  32. Thomas Giordano, MDAnatomic Pathology Physician1710068168
  33. Debbie Gipson, MDPediatrics Physician1316010093
  34. Megan Gipson, DDSGeneral Practice Dentistry1790045474
  35. Polly Gipson, PH.D.Clinical Psychologist1235440462
  36. Vanessa Gipson, MDStudent in an Organized Health Care Education/Training Program1952094955
  37. Amy Girard, DPTPhysical Therapist1306257423
  38. Blanka Girard, MDInternal Medicine Physician1295730745
  39. Jeanette Girard, DOEndocrinology, Diabetes & Metabolism Physician1578068482
  40. Jennifer Girard, M.D.Hematology (Internal Medicine) Physician1093109035
  41. Kaci Girard, MSWSocial Worker1023782521
  42. Jeffrey Girardot, MDStudent in an Organized Health Care Education/Training Program1124886312
  43. Dominique GiraudBehavior Technician1831698810
  44. Kimberlee Girbach, RNRegistered Nurse1780309195
  45. Jessica Gird, LLMSWSocial Worker1326791286
  46. Christopher GirgisPodiatrist1417417064
  47. Taania Girgla, MDAnesthesiology Physician1710620315
  48. Mark Girton, MDAnatomic Pathology & Clinical Pathology Physician1407210131
  49. Joy Girvan, CRNACertified Registered Nurse Anesthetist1104078724
  50. Keri Gisslen, NPNurse Practitioner1023296738

The largest Michigan cities

  1. Farmington Hills36,305
  2. Detroit19,832
  3. Grand Rapids18,005
  4. Novi7,641
  5. Kalamazoo6,553

All of Michigan →

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.