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 416 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. Kurt OlsonInternal Medicine Physician1740691575
  2. Lisa Olson, PHARMDPharmacist1598842296
  3. Loyd Olson, M.D.Student in an Organized Health Care Education/Training Program1306165733
  4. Marie Olson, LAC, BHPProfessional Counselor1902549942
  5. Matthew Olson, DOOrthopaedic Surgery Physician1730403494
  6. Melissa OlsonBehavior Technician1912865585
  7. Micah Olson, MDPediatric Endocrinology Physician1417981440
  8. Paulette Olson, PTPhysical Therapist1538376355
  9. Samantha Olson, OTROccupational Therapist1366254872
  10. Sharon Olson, IBCLCSpecialist1558571620
  11. Shelby Olson, DDSDental Anesthesiology1295185494
  12. Kassidy OlssonBehavior Technician1871293332
  13. Simon Olstein, MDAddiction Medicine (Preventive Medicine) Physician1972896520
  14. Brooke OltsikBehavior Analyst1790308385
  15. Keauna Olugu, D.O. PH.DClinical Child & Adolescent Psychologist1528626074
  16. Emmanuel OluwadarePsychiatric/Mental Health Nurse Practitioner1902698277
  17. Funmilayo Oluwole, FNPPsychiatric/Mental Health Nurse Practitioner1780115345
  18. Jacqueline Olvera, NPFamily Nurse Practitioner1639608599
  19. Kimhiek Om, PHARMDPharmacist1972454783
  20. Nathaniel Oman, PHARMDPharmacist1902384654
  21. Evelyn Omana-Roldan, M.D.Family Medicine Physician1427253335
  22. Abeer OmarPharmacist1720506181
  23. Ashraf Omar, MDPulmonary Disease Physician1235301698
  24. Olufemi Omodara, RPHPharmacist1174028310
  25. Mildred Omoongeh, NPPsychiatric/Mental Health Nurse Practitioner1760945752
  26. Robert Omuria, MDInternal Medicine Physician1962696856
  27. Thomas On, M.D.Anesthesiology Physician1831166685
  28. Erin OnackiSocial Worker1780026260
  29. Mary OnditiBehavior Technician1023954690
  30. Benton Oneal, MDEmergency Medicine Physician1346270956
  31. Ethan Oneal, MAS-MFT, LMFTMarriage & Family Therapist1568141893
  32. Lisa Oneal, WHNPWomen's Health Nurse Practitioner1902091556
  33. James Oneil, M.D.Pediatric Ophthalmology and Strabismus Specialist Physician1669462347
  34. Lauren Oneill, M.D.Ophthalmology Physician1508216441
  35. Karen OngAudiologist1285675462
  36. Nicholas Ong, PHARMDPharmacist1306316476
  37. Elena Ongaro, PA-CPhysician Assistant1679185318
  38. Adedayo Onibokun, MDObstetrics & Gynecology Physician1912941360
  39. Alina OnigaStudent in an Organized Health Care Education/Training Program1740165943
  40. Oludare Onisile, MDFamily Medicine Physician1013955624
  41. Megan Onofray, PTPhysical Therapist1053499509
  42. Ekuevugbe Onosode, PMHNPPsychiatric/Mental Health Nurse Practitioner1417684580
  43. Korrina OnstadBehavior Technician1013630813
  44. Caroline Onstott, PA-CPhysician Assistant1689635393
  45. Marhiya OntiverosBehavior Technician1649190596
  46. Tania Ontiveros, LCSWClinical Social Worker1841959731
  47. Elizabeth Onufrak, PH.D.Clinical Child & Adolescent Psychologist1669564027
  48. Maureen Onugha, NPPsychiatric/Mental Health Nurse Practitioner1972289767
  49. Emetu OnumaPsychiatric/Mental Health Nurse Practitioner1003424771
  50. Tudor OnutuDance Therapist1114541877

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.