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 51 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. Philip O'Niel, D.D.S.General Practice Dentistry1083671176
  2. Jessica Oaks, PAPhysician Assistant1932285285
  3. Sheretta OatesDentist1770763625
  4. Alana ObasBehavior Technician1811852775
  5. Pierre Obeid, DDSDentist1821530577
  6. Lindsay Oberleitner, PHDClinical Psychologist1740711910
  7. Catherine Ogawa, M.D.Dermatology Physician1528236692
  8. Steven Ogilvy, PA-CPhysician Assistant1174052617
  9. Mickala OglesBehavior Technician1962351627
  10. Neshan Ohanian, MDAnesthesiology Physician1043289549
  11. Ryan Ohlgart, D.P.M.Foot & Ankle Surgery Podiatrist1245507433
  12. Mark Ohm, MDObstetrics & Gynecology Physician1245236058
  13. Elisabeth OhrnbergerStudent in an Organized Health Care Education/Training Program1720539927
  14. Elizabeth OjoPhysical Therapist1235630005
  15. Michelle Okada, PA-CPhysician Assistant1497129860
  16. Eni Okaj, DOCTOR OF OPTOMETRYOptometrist1669133955
  17. Olivia OldhamOccupational Therapist1588445928
  18. Talysha Oldham, MA,TLLPClinical Psychologist1063178135
  19. Rebecka Olds, NP-BCNurse Practitioner1255770186
  20. James OlejniczakChore Provider1366294100
  21. Renata Olejnik, DDSDentist1609085315
  22. Andrew Oliver, MA, LPCProfessional Counselor1376310904
  23. Charles Oliver, PYSDClinical Psychologist1790549426
  24. Jenna Oliver, FNP-BCFamily Nurse Practitioner1871300590
  25. Jordan Ollenberger, DPT, PTPhysical Therapist1336628536
  26. Larry Olson, O.DOptometrist1720003866
  27. Natalie Olson, PA-CCritical Care Medicine (Internal Medicine) Physician1487315859
  28. Skyla Olson, LLMSWClinical Social Worker1538053327
  29. Julie Olszewski, CRNACertified Registered Nurse Anesthetist1205895547
  30. Daniel Omans, LMSWClinical Social Worker1144581745
  31. Kathleen OmanskiPhysician Assistant1932168010
  32. Michael OpsommerEmergency Medicine Physician1346201548
  33. Pam Oriod, CMTMassage Therapist1568975993
  34. Susan OrlandoCounselor1013310200
  35. Kara Orr, NPFamily Nurse Practitioner1942926811
  36. Kristen Orr, FNP-BCFamily Nurse Practitioner1982474078
  37. Andrea Orsini, LMSW, ACSW, CADCClinical Social Worker1548593858
  38. Megan Ortega, LMSWClinical Social Worker1841675055
  39. Adam OrtylCounselor1275056194
  40. Samantha Orzechowski, OTR/LOccupational Therapist1205520061
  41. Kemi OsanaiyeFamily Nurse Practitioner1124605720
  42. Jaime Osborn, SLPSpeech-Language Pathologist1942779160
  43. Sadie OsgoodBehavior Technician1003703901
  44. Mary Oshea, MDPediatrics Physician1316922271
  45. Heba Osman, LMSWClinical Social Worker1154678480
  46. Emily Osterman, PT, DPTPhysical Therapist1154089142
  47. Lindsey Ostrander, COTALEnvironmental Modification Occupational Therapy Assistant1689154353
  48. Melissa Osullivan, LMSWClinical Social Worker1831685809
  49. Sean Otuathal, MA, LPCCounselor1588932693
  50. Jenna Overly, M.D.Surgical Critical Care Physician1982040382

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.