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 406 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. Colby Nielsen, MDOrthopaedic Surgery Physician1093418170
  2. Cory NielsenPsychiatry Physician1083279178
  3. Emily Nielsen, PMHNPPsychiatric/Mental Health Nurse Practitioner1619789757
  4. Jared Nielsen, PT, DPTPhysical Therapist1366225732
  5. Joseph Nielsen, DDSGeneral Practice Dentistry1578527818
  6. Kimberly Nielsen, LCSWSocial Worker1922143833
  7. Nicole Nielsen, MASchool Psychologist1316326044
  8. Tricia Nielsen, CRNACertified Registered Nurse Anesthetist1164082038
  9. Emily Nielsen-Beatty, LCSWClinical Social Worker1083165286
  10. Jason Nielson, DCNeurology Chiropractor1659466340
  11. Marcus Nielson, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1376257170
  12. Paul Nielson, DDSDentist1649331166
  13. Ty NielsonMedical Physician Assistant1871988980
  14. Theresa Nieman, M.D.Rheumatology Physician1780781732
  15. Nicki Niemann, M.D.Neurology Physician1093154072
  16. Alex Niemczura, OTOccupational Therapist1619155074
  17. Jennifer Niemeyer, PA-CPhysician Assistant1427541457
  18. Heather NiemyerRegistered Nurse1588532519
  19. Stephanie Niepokoj- Dunn, MSN, FNP-CFamily Nurse Practitioner1447629902
  20. Richard Nierenberg, MDHospitalist Physician1598870628
  21. Walter Nieri, M.D.Geriatric Medicine (Internal Medicine) Physician1265488258
  22. Raymond Nierva, MDAnesthesiology Physician1326179003
  23. Connie Nies, RNRegistered Nurse1346642204
  24. Michael Nies, MDStudent in an Organized Health Care Education/Training Program1063265577
  25. Andrew NietoMental Health Counselor1720797426
  26. Sara Nieto, MDStudent in an Organized Health Care Education/Training Program1063353126
  27. Valeria Nieto LeyvaSpeech-Language Assistant1801621636
  28. Alejandra Nieto-RamirezBehavior Technician1003730409
  29. Ginamarie NievesBehavior Technician1336713320
  30. Yadira Nieves, M.S.Addiction (Substance Use Disorder) Counselor1750514352
  31. Vincent NiezgodaPharmacist1235594714
  32. Sarvesh Nigam, MDPediatrics Physician1053341131
  33. Elaine Niggemann, M.D.Cardiovascular Disease Physician1427054063
  34. Yvette Nijimbere, MSWStudent in an Organized Health Care Education/Training Program1891571170
  35. Nia Nikkhahmanesh, B.S.Student in an Organized Health Care Education/Training Program1932842465
  36. Armon Nikravan, MDDiagnostic Radiology Physician1174106025
  37. Mercedes Nikzad, MDSurgery Physician1558822270
  38. Elizabeth NilesBehavior Technician1134083264
  39. Anita NilsonSpeech-Language Assistant1881470243
  40. Perrin Nimlos, MDEmergency Medicine Physician1619330834
  41. Divya Pramod Nimmatoori, MDInternal Medicine Physician1235727215
  42. Alexander Nimri, MDNephrology Physician1467666123
  43. Klajd NinaStudent in an Organized Health Care Education/Training Program1407708209
  44. Andrews Ninan, MDTrauma Surgery Physician1205095817
  45. Amilee Ning, PA-CMedical Physician Assistant1699852053
  46. Sergio Nino, D.C.Chiropractor1295755593
  47. Patrice Nipape, MPH, BHTAddiction (Substance Use Disorder) Counselor1871047506
  48. Shannon Nipper, RRTRegistered Respiratory Therapist1831957174
  49. Jasreen Nirmal, DCChiropractor1568676005
  50. Camlesh Nirmul, MDPediatrics Physician1487742870

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.