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 26 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. Gregory Gruden, O.D.Optometrist1407904634
  2. Chelsea Grueninger, OTOccupational Therapist1518632264
  3. Scott Grumeretz, PT, DPTPhysical Therapist1467059113
  4. Paul Gryzenia, MDVascular & Interventional Radiology Physician1255325262
  5. Mary GuerraFamily Nurse Practitioner1801892468
  6. Tara Guertin, MSN, FNP-BCFamily Nurse Practitioner1932816717
  7. Monika Gugneja, MDEmergency Medicine Physician1891886271
  8. Akhil Gulati, M.D.Cardiovascular Disease Physician1346406436
  9. Akhila Gullapuram, RDNRegistered Dietitian1295515278
  10. Ram Gunabalan, MDInternal Medicine Physician1710019955
  11. Anil Guntupalli, MPHARMPharmacist1487937322
  12. Aashima Gupta, M.D.Family Medicine Physician1821296161
  13. Charu Gupta, PTPhysical Therapist1457596041
  14. Tarun Gupta, MDDiagnostic Radiology Physician1124034624
  15. Umesh Gupta, PHYSICAL THERAPISTPhysical Therapist1790907905
  16. Vinit Gupta, RPTPhysical Therapist1861792186
  17. Gregory GustafsonRadiation Oncology Physician1922068923
  18. Aubrey GustoPhysical Therapist1346741949
  19. Brooklyn GutowskyPhysical Therapy Assistant1992533806
  20. Michael GuzmanBehavior Technician1740726322
  21. Ceres Guzman-Morales, M.D.Pediatrics Physician1285631184
  22. Bradley Haas, M.D.Hospitalist Physician1134229958
  23. Sabiha Habib, O.D.Optometrist1952458259
  24. Ghiyath Habra, MDDiagnostic Radiology Physician1780643288
  25. Chelsea Hackert, PA-CPhysician Assistant1528503521
  26. Daniel Haddad, M.D.,P.C.Ophthalmology Physician1730157660
  27. Dareen Haddad, LLPCProfessional Counselor1588474399
  28. Diana Haddad, RPHPharmacist1619179660
  29. Holly Haddad, RDRegistered Dietitian1366212227
  30. Nadim Haddad, D.D.SGeneral Practice Dentistry1710016027
  31. Nicole HaegerBehavior Technician1952880734
  32. Irene HaggartyAdult Health Nurse Practitioner1265706790
  33. Abdul HagrooPhysical Therapist1083112486
  34. Lauren Hahn, LMFTMarriage & Family Therapist1245573047
  35. Petra HajoujPharmacist1669110573
  36. Amanda Haladik, DOPediatrics Physician1730428632
  37. Holly Hale, PH.D. LPClinical Psychologist1144585308
  38. Bethany Hall, NP-CNurse Practitioner1871814848
  39. Brittney Hall, OTR/LOccupational Therapist1841922630
  40. Haley HallPsychologist1487316428
  41. Keith Hall, MA, LLMSWClinical Social Worker1346923455
  42. Kelsey HallOccupational Therapist1538638119
  43. Rebekah HallBehavior Technician1932865185
  44. Sandra HallPhlebotomy Technician1619790524
  45. Diamond Hall-Holloway, LLBSWSocial Worker1407409402
  46. Monica HallacFamily Nurse Practitioner1740831528
  47. Allyson HallahanFamily Nurse Practitioner1710357348
  48. Donna Haller, CRNACertified Registered Nurse Anesthetist1851350656
  49. Lindsey Halpin, MS,CCC-SLPSpeech-Language Pathologist1538316005
  50. Debra Halsey, DDSGeneral Practice Dentistry1407069024

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.