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 91 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. Amanda Casillo, AU.D.Audiologist1760917066
  2. Geraldine Casino, M.D.Hospitalist Physician1669850954
  3. Liz Casis-FloresPhysician Assistant1801762513
  4. Michael Caskey, MDVascular Specialist/Technologist Cardiovascular1326032111
  5. Jessica CaslerBehavior Analyst1306412614
  6. Breanna Cason, RBTBehavior Technician1689247132
  7. James Cason, MDAnatomic Pathology & Clinical Pathology Physician1265412670
  8. John Cason, M.D.Ophthalmology Physician1255494001
  9. Solomon CasonSocial Worker1003122672
  10. Paulina CasoniBehavior Technician1336797547
  11. Jubilee CasooseBehavior Technician1497693477
  12. David CasperDiagnostic Radiology Physician1316566441
  13. Morgan Casper, NMDNaturopath1154145407
  14. Peter Casper, M.D.Dermatology Physician1538272596
  15. Mark Caspi, PHARMDPharmacotherapy Pharmacist1508947425
  16. Jill Cassaday, PHARMD, BCPSOncology Pharmacist1578524336
  17. David Cassell, RNRegistered Nurse1689145641
  18. Ian Cassell, M.D.Pediatric Radiology Physician1487645719
  19. Penny CassellLicensed Vocational Nurse1790457299
  20. Samantha Casselman, CPNP-PCPediatric Nurse Practitioner1851767909
  21. Brendan Cassidy, MDOphthalmology Physician1992779425
  22. Colleen Casson, LPCProfessional Counselor1457891152
  23. Nicholas Cassuto, MDDiagnostic Radiology Physician1699112060
  24. Cecilio Castaneda, PHARMDPharmacist1306458807
  25. Cynthia CastanedaDriver1750073292
  26. Jennifer Castaneda, LMSWSocial Worker1962811034
  27. Martha Castaneda, MSWClinical Social Worker1093932121
  28. Uriel Castaneda, MDPediatrics Physician1932529328
  29. Marisol Castaneda GutierrezBehavior Technician1275460180
  30. Erik Castelan, PTAPhysical Therapy Assistant1639981699
  31. Aurea Castellanos, FNPFamily Nurse Practitioner1427562909
  32. Daniel Castellanos, MDChild & Adolescent Psychiatry Physician1790793156
  33. Jessica CastellanosBehavior Technician1578321964
  34. Mario CastellanosGynecology Physician1902009251
  35. Aliyah CasteloBehavior Technician1629932645
  36. Andrew Casterline, D.D.S.Dentist1508963471
  37. Christina Castillejo, LAC, NCCMental Health Counselor1740166180
  38. Alexander Castillo, BCBABehavior Analyst1336024637
  39. Charles Castillo, MDSurgery Physician1003836644
  40. Christine CastilloRegistered Nurse1982001749
  41. Lakisha Castillo, BCBABehavior Analyst1598015653
  42. Magdalena CastilloFamily Nurse Practitioner1144812983
  43. Myra Castillo, LPCMental Health Counselor1235817156
  44. Nicole CastilloBehavior Analyst1396281721
  45. Nadia Castillo Troudart, CRNACertified Registered Nurse Anesthetist1891127387
  46. Anikka Castle, LPCProfessional Counselor1205479367
  47. Hajnalka Castle, CPNP-PCNurse Practitioner1992493852
  48. Michael CastleberryBehavior Technician1144966300
  49. Margaret Castor, WHNPWomen's Health Nurse Practitioner1275960585
  50. Donna Castrenze-Steele, FNP-CFamily Nurse Practitioner1356994743

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.