NPPES file of Aug 9, 2026

Doctors and health care providers in Mesa, AZ

9,151 individual NPPES records list a practice address in Mesa, 4th of 137 Arizona cities. The largest group is behavior technician: 554, 6% of the city's records, against 6% across Arizona. Page 121 of 184.

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

The 8 largest groups in Mesa

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

Mesa in Arizona

  • Rank in Arizona4th of 137 cities by records
  • Share of the state7.2% of Arizona's records
  • Specialties present25 or more taxonomy codes
  • Top three groups15.8% of all records
  • Behavior Technician rank6th of the 10 Arizona cities with the most

Compared with Arizona as a whole, Mesa has 1.8× the state's share of physician assistant records and 0.65× its share of registered nurse records.

Providers in Mesa, alphabetically

  1. Lynn Nunemacher, PSY.D.Clinical Psychologist1790920882
  2. Leeanne NunesBehavior Technician1144173766
  3. Irvin NunezBehavior Technician1124627039
  4. Melissa Nunez, RBTBehavior Technician1235783713
  5. Victoria Nunez, NMDNaturopath1952105736
  6. Logan NunnBehavior Technician1396600318
  7. Anupama Nutakki, M.D.Internal Medicine Physician1386605657
  8. Chikwendu Nwosu, MDInternal Medicine Physician1104994375
  9. Jace Nybo, DCChiropractor1245871268
  10. Jennifer Nye, LMSWClinical Social Worker1265021083
  11. Diana Nyren, COTAOccupational Therapy Assistant1487709952
  12. Imma Nzomo, PMHNPPsychiatric/Mental Health Nurse Practitioner1629559976
  13. George O'Brien, D.O.Family Medicine Physician1235299579
  14. Molly O'Brien, DOStudent in an Organized Health Care Education/Training Program1205679453
  15. Seth O'Brien, CP, FAAOPProsthetist1427317429
  16. Kristen O'Connor, MS CCC-SLPSpeech-Language Pathologist1326488081
  17. Amy O'Hara, NMDNaturopath1114119468
  18. Jacob O'Horo, EMTBasic Emergency Medical Technician1255937371
  19. Morgan O'Malley, MDPsychiatry Physician1518524925
  20. Michael O'Meara, MDCardiovascular Disease Physician1427026491
  21. Brian O'Neal, CPEDPedorthist1649141920
  22. Dorothy O'Neal, R.N.Occupational Health Registered Nurse1265659445
  23. Sarah O'Neill, BHTOther Technician1417333436
  24. Terry O'Reilly, M.D.Family Medicine Physician1356539787
  25. Catalina O'Toole, DOStudent in an Organized Health Care Education/Training Program1841846698
  26. Cristie O'Toole, MS, CCC-SLPSpeech-Language Pathologist1902050149
  27. Daniel OakesProfessional Counselor1730103979
  28. Janet Oates, RNSchool Registered Nurse1114355021
  29. Gloria ObaigwaAdult Health Nurse Practitioner1386223329
  30. Maki Obana, PHDPsychologist1255650594
  31. Peter Oben, RVT, RDCS,RDMASonography Specialist/Technologist Cardiovascular1972026896
  32. Saige ObrayPhysician Assistant1043051352
  33. Christopher ObrienHearing Instrument Specialist1467115907
  34. Julie Ocampo, LCSWClinical Social Worker1649942350
  35. Annaliza OchoaHome Health Aide1447965264
  36. Christian Ochoa, DDSStudent in an Organized Health Care Education/Training Program1548104557
  37. Shannon Ochs, RNRegistered Nurse1144940529
  38. Thaddeo Oconer, MDNephrology Physician1104928571
  39. Oluwagbemiga Odede, NPPsychiatric/Mental Health Nurse Practitioner1245990977
  40. Jill Odgren-Cole, N.D.Naturopath1578880126
  41. Harold Odutola, PAPhysician Assistant1326857806
  42. Meredith Oehler, LPCMental Health Counselor1538599949
  43. Elizabeth Oehrlein, PA-CPhysician Assistant1871923870
  44. Ronald Ogara, DCChiropractor1194860817
  45. Gabriel Ogbonnaya, M.D.Internal Medicine Physician1972502862
  46. Kelton OgradyPhysical Therapy Assistant1053242073
  47. Jean Ogu, PMHNPPsychiatric/Mental Health Nurse Practitioner1578234464
  48. Oluwakemi OgunleyePsychiatric/Mental Health Nurse Practitioner1164104550
  49. Tom Ohara, D.C.Chiropractor1194732016
  50. Jennifer Ohlund, LACMental Health Counselor1033724992

The largest Arizona cities

  1. Phoenix31,399
  2. Tucson18,788
  3. Scottsdale11,008
  4. Gilbert5,802
  5. Chandler5,497

All of Arizona →

How to read this directory

Mesa, Arizona appears in the CMS National Plan and Provider Enumeration System with 9,151 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 Mesa - 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 Mesa 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 Mesa is weighted toward Behavior Technician (554 clinicians, followed by Physician Assistant with 472 and Speech-Language Pathologist with 424). 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, Mesa reports roughly 123.1 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 Mesa 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 Mesa, AZ?

There are 9,151 registered healthcare providers in Mesa, AZ, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Mesa?

The most common specialties in Mesa are Behavior Technician, Physician Assistant, Speech-Language Pathologist, Physical Therapist, Family Nurse Practitioner. Behavior Technician has the most providers with 554.

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.