NPPES file of Aug 9, 2026

Doctors and health care providers in Phoenix, AZ

31,399 individual NPPES records list a practice address in Phoenix, 1st of 137 Arizona cities. The largest group is students in training: 1,583, 5% of the city's records, against 3% across Arizona. Page 420 of 628.

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

The 8 largest groups in Phoenix

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

Phoenix in Arizona

  • Rank in Arizona1st of 137 cities by records
  • Share of the state24.9% of Arizona's records
  • Specialties present25 or more taxonomy codes
  • Top three groups14.3% of all records
  • Students in training rank1st of the 10 Arizona cities with the most

Compared with Arizona as a whole, Phoenix has 1.9× the state's share of student in an organized health care education/training program records and 0.75× its share of general practice dentistry records.

Providers in Phoenix, alphabetically

  1. Ann Ostrom, PTHand Physical Therapist1194713453
  2. Tara Ostrom, M.D.Internal Medicine Physician1124017009
  3. Jennifer OsunaSocial Worker1295565083
  4. Anthony Osvog, LMSWClinical Social Worker1760280341
  5. Amber Oswald, PT, DPTPhysical Therapist1417086109
  6. Sarina OteroProfessional Counselor1336631951
  7. Sharina Otero, BHTBehavior Technician1689444838
  8. Tami Otey, PTAPhysical Therapy Assistant1750655601
  9. Andrea Otovic, DNPStudent in an Organized Health Care Education/Training Program1275415564
  10. Jane Otstot, L.P.C.Counselor1275750267
  11. Christopher Ott, PHARM.D.Pharmacist1770901886
  12. David Ott, M.D.Orthopaedic Surgery Physician1588660914
  13. Hilary OttavianoBehavior Analyst1326505744
  14. Beth OttersteinNurse Practitioner1790941045
  15. Shawn Otteson, DMDDentist1952786170
  16. Mario Otto, M.D., PH.D.Pediatric Hematology & Oncology Physician1306064654
  17. Phyllis Otu, LSATAddiction (Substance Use Disorder) Counselor1447082359
  18. Jason Ou, PA-CPhysician Assistant1295487130
  19. Denny Oul, LCSWClinical Social Worker1649133794
  20. Hadjara Ousseyni Hassane, BCBA LBABehavior Analyst1184347957
  21. Douglas Outcalt, M.D.Public Health & General Preventive Medicine Physician1093032286
  22. Alma Outen, FNPNurse Practitioner1770900920
  23. Lisa Outhier, PSY.D.Clinical Child & Adolescent Psychologist1811257264
  24. Rebecca Outwater, FNP-CFamily Nurse Practitioner1770088205
  25. Yafei Ouyang, MDSurgery Physician1013447192
  26. Garineh Ovanessoff, M.D.Endocrinology, Diabetes & Metabolism Physician1669625851
  27. Michael Ovens, DDS MSDOrthodontics and Dentofacial Orthopedics Dentistry1225195803
  28. Julie Overbey, MS-FNPFamily Nurse Practitioner1730496282
  29. Grace Overcash, OT, CHTHand Occupational Therapist1629058144
  30. Leah Overfield, M.S., CF-SLPSpeech-Language Pathologist1356727481
  31. Erin Overgard, RDRegistered Dietitian1063690576
  32. Amy Jo Overlin, M.D.Family Medicine Physician1811958101
  33. Matthew Overlin, PAPhysician Assistant1518916113
  34. Susan Overman, PTAPhysical Therapy Assistant1417159815
  35. Marnee Overton, PHARMDPharmacist1699421511
  36. Trisha OvervaagPsychiatric/Mental Health Nurse Practitioner1215546155
  37. Silvia Oviedo, MS. SLPSpeech-Language Pathologist1326190356
  38. Agnes Ovienmhada, MDInternal Medicine Physician1902028871
  39. Ace Ovil, M.DTrauma Surgery Physician1649546193
  40. Daniel Ovitt, PTPhysical Therapist1619048758
  41. Danielle OwenLicensed Practical Nurse1457604746
  42. Huw Owen-Reece, MDAnesthesiology Physician1609860188
  43. Angelica Owens, FNP-CFamily Nurse Practitioner1285328757
  44. Deanna OwensPersonal Care Attendant1205380003
  45. Jan OwensMental Health Counselor1023324126
  46. Kelly Owens, PHARM.D.Pharmacist1952600892
  47. Kelvin OwensPeer Specialist1457083057
  48. Kenneth Owens, CRNACertified Registered Nurse Anesthetist1447039193
  49. Mara Owens, COTA/LOccupational Therapy Assistant1235737834
  50. Nicolette Owens, PT, DPT, CERT. DNPhysical Therapist1679932891

The largest Arizona cities

  1. Tucson18,788
  2. Scottsdale11,008
  3. Mesa9,151
  4. Gilbert5,802
  5. Chandler5,497

All of Arizona →

How to read this directory

Phoenix, Arizona appears in the CMS National Plan and Provider Enumeration System with 31,399 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 Phoenix - 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 Phoenix 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 Phoenix is weighted toward Student in an Organized Health Care Education/Training Program (1,583 clinicians, followed by Pharmacist with 1,483 and Behavior Technician with 1,422). 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 Arizona's population, Phoenix reports roughly 422.5 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.

For Phoenix 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 Phoenix, AZ?

There are 31,399 registered healthcare providers in Phoenix, AZ, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Phoenix?

The most common specialties in Phoenix are Student in an Organized Health Care Education/Training Program, Pharmacist, Behavior Technician, Family Nurse Practitioner, Physical Therapist. Student in an Organized Health Care Education/Training Program has the most providers with 1,583.

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.