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 122 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. Connor Ohmart, MDEmergency Medicine Physician1467957951
  2. Rodney Ohmart, MDPediatrics Physician1639149560
  3. Joelle Oizumi, PH.D.Clinical Psychologist1699728576
  4. Jaclynn Ojeda, PT, DPT, COMTPhysical Therapist1740914977
  5. Anita Ojha-Hammad, MDInternal Medicine Physician1952361396
  6. Linda Okafor, FNPFamily Nurse Practitioner1205355880
  7. Ifunanya Okeke, DDSOrthodontics and Dentofacial Orthopedics Dentistry1013751601
  8. Lugard OkelloBehavior Analyst1720843881
  9. Bertram Okorie, MDEmergency Medicine Physician1619952587
  10. Charity OkoroHomemaker1427544253
  11. Troy OkpaguNaturopath1467320820
  12. Denise Olar, PTAPhysical Therapy Assistant1790213502
  13. Kim Daewoo OlayBehavior Technician1659179372
  14. Marwan Oleiwi, MDHospitalist Physician1063779262
  15. Danielle Olin, MA, LISACAddiction (Substance Use Disorder) Counselor1538688841
  16. Corinne Oliphant, DPTPhysical Therapist1306703558
  17. Dayana OlivaBehavior Technician1477351161
  18. Ryan Olmstead, SLPASpeech-Language Assistant1043598972
  19. Diane Olsen, SPTSpeech-Language Pathologist1386696482
  20. Jeremy Olsen, ODOptometrist1750352795
  21. Lori Olsen, LPCProfessional Counselor1083893911
  22. Mark Olsen, DPMFoot & Ankle Surgery Podiatrist1124330436
  23. Tad OlsenDentist1144756016
  24. Thomas OlsenProfessional Counselor1174181648
  25. Adora Olson, PA-CPhysician Assistant1851822068
  26. Brooke Olson, MSPTPhysical Therapist1780750075
  27. Carol Olson, MDPsychiatry Physician1639125313
  28. Cassidy OlsonBehavior Technician1750241956
  29. Hannah OlsonPhysician Assistant1568395184
  30. Jamie OlsonSchool Psychologist1275651101
  31. Kelley Olson, DPTPhysical Therapist1811400054
  32. Lindsay OlsonPhysical Therapy Assistant1659421675
  33. Malgorzata OlsonPhysical Therapist1073901757
  34. Demarie Olu-Williams, D.OInternal Medicine Physician1841533791
  35. Adeyemi OlubamboRegistered Nurse1700599792
  36. Olusegun OlutedoCounselor1164196317
  37. Shahd OmerPharmacist1578436911
  38. Summer Omerza, RBTBehavior Technician1447927769
  39. Marek Ondruj, DPTPhysical Therapist1760048706
  40. Mary Oneil, LPCProfessional Counselor1265841027
  41. Jacqueline Ong, MS,CCC-SLPSpeech-Language Pathologist1881762508
  42. Justin OnisileBehavior Technician1982459954
  43. Alex Onofrei, M.D.Family Medicine Physician1154410157
  44. Chuba Ononye, MDInternal Medicine Physician1629026018
  45. Jennifer Onorato, FNP-BCFamily Nurse Practitioner1245954353
  46. Rosadelia Ontiberos, RNRegistered Nurse1164104519
  47. Oyoyo Onuoha, M.D.Internal Medicine Physician1811183171
  48. Ugorji Onyeani, RN,MDPsychiatric/Mental Health Registered Nurse1992413108
  49. Emily Ooga, PMHNPPsychiatric/Mental Health Nurse Practitioner1821563628
  50. Dean Oorlog, RNFASurgery Physician1447438270

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.