NPPES file of Aug 9, 2026

Doctors and health care providers in Troy, MI

3,809 individual NPPES records list a practice address in Troy, 14th of 515 Michigan cities. The largest group is behavior technician: 462, 12% of the city's records, against 22% across Michigan. Page 43 of 77.

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

The 8 largest groups in Troy

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Troy in Michigan

  • Rank in Michigan14th of 515 cities by records
  • Share of the state1.3% of Michigan's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.5% of all records

Compared with Michigan as a whole, Troy has 2.5× the state's share of physician assistant records and 0.55× its share of behavior technician records.

Providers in Troy, alphabetically

  1. Rosanna Marrocco, NPPediatric Nurse Practitioner1780901439
  2. Kevin MarshallBehavior Technician1831600931
  3. Darlene Marsich-Douglas, CRNACertified Registered Nurse Anesthetist1003854209
  4. Virginia MarsicoPhysician Assistant1295192797
  5. Francesca MartellaSocial Worker1285565101
  6. Cecilia Martin, CNMAdvanced Practice Midwife1679235246
  7. Kit MartinBehavior Technician1164311502
  8. Laurie MartinPsychologist1679699920
  9. Lorina MartinFamily Nurse Practitioner1609690106
  10. Nicole Martin, M.A. CF-SLPSpeech-Language Pathologist1144633470
  11. Symona MartinBehavior Technician1740778182
  12. Concepcion Martinez, RDHDental Hygienist1174922991
  13. Laura MartinezClinical Social Worker1114403136
  14. Mila Martinez-Mojares, MDCardiovascular Disease Physician1053417006
  15. Tina Maruszewski, D.C.Chiropractor1700993763
  16. Karen Marzella, NURSE PRACTIONIERNurse Practitioner1376611863
  17. Allison Mason, M.A., C.C.C.-SLPSpeech-Language Pathologist1588168116
  18. Katherine MasonSpeech-Language Pathologist1396210332
  19. Sarah MasonBehavior Technician1790644680
  20. Hend Massarani, DDSDentist1699469304
  21. Tamer Massarani, MDPediatrics Physician1114917721
  22. Jordan MassePharmacist1740061407
  23. Tia MassieBehavior Technician1700722667
  24. Nicole Massoud, MSWSocial Worker1184472847
  25. Ancuta Matei, MDPsychiatry Physician1982641544
  26. Marie Mateo, MDFamily Medicine Physician1558327023
  27. Erica MateroPhysical Therapist1467047761
  28. Jaya MathaiPharmacist1134751548
  29. Binu Mathew JacobPhysical Therapist1548764566
  30. Minu Mathew Puthuppally, FNP-CFamily Nurse Practitioner1477422152
  31. Jomy Mathews, FNP-BCFamily Nurse Practitioner1073063004
  32. Diana MathiasPhysical Therapist1881164275
  33. Curtis MathisBehavior Technician1851173215
  34. Mary Matichak, DPMStudent in an Organized Health Care Education/Training Program1073207353
  35. Peter Matta, RPHPharmacist1619658424
  36. Thea Matthews, LLMSWMental Health Counselor1104318773
  37. Bassam Matti, MDFamily Medicine Physician1376593079
  38. Vivian Matti, MDFamily Medicine Physician1215167812
  39. Rovetta Mattia, ODOptometrist1366497661
  40. Sean Matuszak, MDOrthopaedic Surgery Physician1922214311
  41. Fredrick Matvias, D.M.D.,M.S.Prosthodontics1669640132
  42. Brian Matyniak, ACNP-BCAcute Care Nurse Practitioner1437407293
  43. Katharine Mauer, MDAllergy & Immunology Physician1336123793
  44. Christopher Maurer, PT, DPTPhysical Therapist1093449175
  45. Dawn MaurerBehavior Technician1700565710
  46. Marianty Mavros Gonzalez, NPPsychiatric/Mental Health Nurse Practitioner1487363339
  47. Daniela Maxim, FNP-BCFamily Nurse Practitioner1962892307
  48. Jane Maxwell, MAProfessional Counselor1275285017
  49. Allen May, DODiagnostic Radiology Physician1932134103
  50. Emma MayBehavior Technician1053265355

The largest Michigan cities

  1. Farmington Hills36,305
  2. Detroit19,832
  3. Grand Rapids18,005
  4. Ann Arbor15,616
  5. Novi7,641

All of Michigan →

How to read this directory

Troy, Michigan appears in the CMS National Plan and Provider Enumeration System with 3,809 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 Troy - 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 Troy 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 Troy is weighted toward Behavior Technician (462 clinicians, followed by Physician Assistant with 237 and Physical Therapist with 235). 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, Troy reports roughly 37.9 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Troy practice address, a coverage gap Troy patients typically fill by traveling to a larger nearby hub.

For Troy 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 Troy, MI?

There are 3,809 registered healthcare providers in Troy, MI, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Troy?

The most common specialties in Troy are Behavior Technician, Physician Assistant, Physical Therapist, Clinical Social Worker, Family Nurse Practitioner. Behavior Technician has the most providers with 462.

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.