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 104 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. Anna Groff DabreoAssistant Behavior Analyst1225828957
  2. Patrick Grohar, MD, PHDPediatric Hematology & Oncology Physician1225175201
  3. Megan GronBehavior Technician1174282131
  4. Christopher Grondin, M.D.Internal Medicine Physician1902260607
  5. Kirsten Groody, MDPediatric Anesthesiology Physician1417477068
  6. Angelia GroomSpecialist1609759265
  7. Claire GroomBehavior Technician1598457921
  8. Thomas Groom, DDSDentist1891819983
  9. Ellen Grosh, M.D.Child & Adolescent Psychiatry Physician1396760633
  10. Arden Gross, NPNurse Practitioner1609503788
  11. Barry Gross, MDDiagnostic Radiology Physician1598846727
  12. Evan Gross, PHDClinical Neuropsychologist1528867504
  13. Milton Gross, MDIn Vivo & In Vitro Nuclear Medicine Physician1235240961
  14. Sophie GrossSocial Worker1083577936
  15. Tia GrossClinical Social Worker1518321470
  16. Paul Grossman, MDInterventional Cardiology Physician1720164460
  17. Traci Grossman, PA-CPhysician Assistant1104072040
  18. Sophia Grossnickle, PTPhysical Therapist1417845660
  19. Kimberly Grosso, CRNACertified Registered Nurse Anesthetist1871511378
  20. Jonathan GroszekPhysical Rehabilitation Occupational Therapist1033691704
  21. James Grotberg, MDEmergency Medicine Physician1447696968
  22. Michael Grotenrath, PA-CPhysician Assistant1619144961
  23. Christian Groth, DDSGeneral Practice Dentistry1669600557
  24. Melissa Groth, LMSWSocial Worker1558708321
  25. Glenn Groustra, MDPsychiatry Physician1972761880
  26. Jason Grove, PA-CPhysician Assistant1508943663
  27. Kerrie Grove, MPTPhysical Therapist1538443650
  28. Samantha GroveAthletic Trainer1427400464
  29. Tyler Grove, PHDClinical Psychologist1184065229
  30. Claire Grover, PT, DPTPhysical Therapist1184320822
  31. Kayla GroverBehavior Technician1487347167
  32. Matthew Grover, M.D.Psychiatry Physician1083862965
  33. Alicia Growney, MDSurgery Physician1447415989
  34. Gena Grube, NPNurse Practitioner1629383831
  35. Gabrielle Gruber, LMSWClinical Social Worker1811103997
  36. Cynthia Gruden, RNCRegistered Nurse1215202346
  37. Cyril Grum, MDPulmonary Disease Physician1659453561
  38. Kari GrumeretzNutritionist1841974110
  39. Paul Grundlehner, MDDiagnostic Radiology Physician1154701654
  40. Alexander Grushky, M.D.Diagnostic Radiology Physician1174962328
  41. Steven GrzegorskiStudent in an Organized Health Care Education/Training Program1457097123
  42. Andrew Grzesiak, DPTPhysical Therapist1205095304
  43. Dongmin Gu, MDAnatomic Pathology Physician1912317884
  44. Jeffrey Gu, MDOtolaryngology Physician1225533110
  45. Laura GubalaHome Health Registered Nurse1720596372
  46. Johann Gudjonsson, MDDermatology Physician1710004866
  47. Ashley GuenthardtBehavior Technician1174201982
  48. Kristin Guenther, DDSGeneral Practice Dentistry1609900901
  49. Allyson Guerra, CF-SLPSpeech-Language Pathologist1497584783
  50. Tanya Guerra, PAPhysician Assistant1164677555

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.