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 175 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. Adam Markovitz, MDInternal Medicine Physician1821666850
  2. David Markovitz, MDInfectious Disease Physician1669558532
  3. Erica Markovitz, MDInternal Medicine Physician1457410375
  4. Adam Marks, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1265639025
  5. Alexandria MarksStudent in an Organized Health Care Education/Training Program1851978589
  6. Rory Marks, MDRheumatology Physician1578648184
  7. Julia MarkuBehavior Technician1518708353
  8. Madison MarkwardtClinical Social Worker1184221491
  9. Madeleine Marlar-Pavey, PHDStudent in an Organized Health Care Education/Training Program1881581890
  10. Adrienne Marler, DOPediatric Endocrinology Physician1881258879
  11. Alexander Marlow, DMDGeneral Practice Dentistry1003254285
  12. Emily Marlow, NPNurse Practitioner1447293477
  13. Emily Marlow, DDSDentist1083051288
  14. Marie Marolf, ACSW LMSW CAACClinical Social Worker1710144373
  15. Zuzanna MaroszekBehavior Technician1235898024
  16. Nicole Marquand, M.D.Anesthesiology Physician1023540432
  17. Mary Ann Marquardt, LMSWMental Health Counselor1356467914
  18. Sheila MarquardtMental Health Counselor1891617882
  19. Lauren Marquette, MDPlastic Surgery Physician1417390329
  20. Hector Marquez, MDDiagnostic Radiology Physician1841685302
  21. Liana Marquis, MDInternal Medicine Physician1417156555
  22. Ruby Marr, MDInternal Medicine Physician1952644700
  23. Vanessa Marr, PHDClinical Social Worker1063089647
  24. Santina Marras, CRNACertified Registered Nurse Anesthetist1912964545
  25. Arthur Marroquin, PH.D.Psychologist1700951274
  26. Vanessa Marry, LMSWSocial Worker1083925259
  27. Ashley Marsh, PSYDClinical Psychologist1598274920
  28. Blake Marsh, CRNACertified Registered Nurse Anesthetist1689180689
  29. Elizabeth Marsh, PAPhysician Assistant1588742019
  30. Erica Marsh, MDObstetrics & Gynecology Physician1487818134
  31. Gerald Marsh, CRNACertified Registered Nurse Anesthetist1619853116
  32. Karen Marsh, CCHW CNA RMACommunity Health Worker1831059328
  33. Marcela Marsh, PA-CPhysician Assistant1972160026
  34. Amanda Marshall, RNGastroenterology Registered Nurse1689949547
  35. Candice Marshall, LLMSWClinical Social Worker1578159950
  36. Christianne Marshall, PA-CPhysician Assistant1811946379
  37. David Marshall, PH.D.Clinical Psychologist1184816803
  38. Derrick Marshall, LMSWClinical Social Worker1801208061
  39. Giselle Marshall, M.D.Diagnostic Radiology Physician1467896001
  40. Jennifer Marshall, LMSWSocial Worker1083801872
  41. Jessie Marshall, M.D.Internal Medicine Physician1497850887
  42. Margarett MarshallMental Health Counselor1568390599
  43. Steven Marshall, CRNACertified Registered Nurse Anesthetist1730107236
  44. Thomas Marshall, DDS, MSProsthodontics1952388514
  45. Steffanie Marsonek, NPNurse Practitioner1710363767
  46. Kyriaki Marti, DMD, MD, PHDOral and Maxillofacial Surgery (Dentist)1679861397
  47. Aubrey MartinStudent in an Organized Health Care Education/Training Program1518768100
  48. Blair Martin, LPNLicensed Practical Nurse1699480137
  49. Brent Martin, DMD, MSOral and Maxillofacial Pathology Dentistry1538336615
  50. Caitlin Martin, MSWSocial Worker1982966586

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.