NPPES file of Aug 9, 2026

Doctors and health care providers in Tucson, AZ

18,788 individual NPPES records list a practice address in Tucson, 2nd of 137 Arizona cities. The largest group is behavior technician: 1,116, 6% of the city's records, against 6% across Arizona. Page 312 of 376.

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

The 8 largest groups in Tucson

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

Tucson in Arizona

  • Rank in Arizona2nd of 137 cities by records
  • Share of the state14.9% of Arizona's records
  • Specialties present25 or more taxonomy codes
  • Top three groups16.1% of all records
  • Behavior Technician rank2nd of the 10 Arizona cities with the most

Compared with Arizona as a whole, Tucson has 1.9× the state's share of emergency medicine physician records and 0.52× its share of physician assistant records.

Providers in Tucson, alphabetically

  1. Koraima Sierra, BCBA, LBA-AZBehavior Analyst1598230336
  2. Mark Sierra, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1003132358
  3. Teresa SierraMental Health Counselor1780873273
  4. Marcela Sierra-Romero, ODOptometrist1497260673
  5. Eva Sietsema, ARNPFamily Nurse Practitioner1831438944
  6. James Sieveke, P.T.Physical Therapist1134257611
  7. Maria Sifontes, MDPediatrics Physician1710958616
  8. Elizabeth Sigler, D.O.Anesthesiology Physician1376991679
  9. Trent Sigler, CRNACertified Registered Nurse Anesthetist1750609541
  10. Mohammed Sikder, M.D.Nephrology Physician1518963065
  11. Nicholas Sikic, M.D,Pediatrics Physician1356590764
  12. Ryan Silas, LMTMassage Therapist1679496160
  13. Ricci Silberman, PA-CMedical Physician Assistant1871502989
  14. Gina Siler, MA MSC LPCProfessional Counselor1104236066
  15. John Siler, MDDiagnostic Radiology Physician1861463028
  16. Rebecca Siler, RNRegistered Nurse1326639444
  17. Adam Silva, DOGeneral Practice Physician1962107854
  18. Hailee Silva, CGCGenetic Counselor (M.S.)1437097979
  19. Jonathan Silva, M.D.Anesthesiology Physician1023303245
  20. Kevin Silva, DOInternal Medicine Physician1811425903
  21. Marta Silva, NPWomen's Health Nurse Practitioner1497208466
  22. Max Silva, DOPediatrics Physician1528682382
  23. Sebastian Silva, MDInternal Medicine Physician1639668411
  24. Solomon SilvaPeer Specialist1700742053
  25. Yvonne SilvaProfessional Counselor1992639017
  26. Gary Silver, DDS MDSEndodontics1548234719
  27. Selina Silver, LAC, ATR-PMental Health Counselor1104772128
  28. Rita Silverberg, LPCMental Health Counselor1215307707
  29. Alberta Silveri, CPHTPharmacy Technician1043197551
  30. Kris Silverman, FNPFamily Nurse Practitioner1275970055
  31. Risa SilversRegistered Nurse1780413039
  32. David Silvestre, D.OInternal Medicine Physician1619315967
  33. Kenneth Silvestro, MDInternal Medicine Physician1588451413
  34. Nancy Silvis, MDDermatology Physician1740380427
  35. Yeeck Sim, M.D.Neurology Physician1437595048
  36. Monica Simba, M.D.Internal Medicine Physician1558334300
  37. Russell Simbari, MDOccupational Medicine Physician1134139074
  38. Hailey SimchukObstetrics & Gynecology Physician1467381632
  39. Samuel Simister, MD, MBASurgery Physician1306688411
  40. Christina Simmons, NNPNeonatal Nurse Practitioner1295589679
  41. Coralie SimmonsRegistered Nurse1811823545
  42. Esther SimmonsContractor1861984841
  43. Javartis SimmonsBehavior Technician1124653027
  44. Jeana Simmons, MA, BCBABehavior Analyst1588461461
  45. Makala SimmonsPharmacy Technician1518818566
  46. Nancy Simmons, A.T.,C.Athletic Trainer1891985206
  47. Tristan Simmons, DOEmergency Medicine Physician1033564380
  48. James Simms, PH.D.Clinical Psychologist1588371785
  49. Sarah Simms, M.S., CCC-SLPSpeech-Language Pathologist1033506746
  50. Claire SimonNeurology Physician1871116558

The largest Arizona cities

  1. Phoenix31,399
  2. Scottsdale11,008
  3. Mesa9,151
  4. Gilbert5,802
  5. Chandler5,497

All of Arizona →

How to read this directory

Tucson, Arizona appears in the CMS National Plan and Provider Enumeration System with 18,788 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 Tucson - 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 Tucson 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 Tucson is weighted toward Behavior Technician (1,116 clinicians, followed by Pharmacist with 999 and Family Nurse Practitioner with 907). 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, Tucson reports roughly 252.8 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 Tucson 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 Tucson, AZ?

There are 18,788 registered healthcare providers in Tucson, AZ, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Tucson?

The most common specialties in Tucson are Behavior Technician, Pharmacist, Family Nurse Practitioner, Physical Therapist, Clinical Social Worker. Behavior Technician has the most providers with 1,116.

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.