NPPES file of Aug 9, 2026

Doctors and health care providers in Ajo, AZ

24 individual NPPES records list a practice address in Ajo, 105th of 137 Arizona cities. The largest group is family nurse practitioner: 4, 17% of the city's records, against 5% across Arizona.

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

Ajo in Arizona

  • Rank in Arizona105th of 137 cities by records
  • Share of the state<0.1% of Arizona's records
  • Specialties present16 taxonomy codes
  • Top three groups37.5% of all records
  • Family Nurse Practitioner rank11th of the 10 Arizona cities with the most

Providers in Ajo, alphabetically

  1. Katiria Alvarez, RDRegistered Dietitian1851935787
  2. Julie Anderson, ARNPFamily Nurse Practitioner1164553731
  3. Daniel Bray, O.D.Optometrist1376530873
  4. Walter Cayce, MD, MPHPreventive Medicine/Occupational Environmental Medicine Physician1528034626
  5. Yvonne Crewse, LPCProfessional Counselor1801074869
  6. Susan Guinn-Lahm, LPCCounselor1356451777
  7. Gorky Herrera, M.D.Psychiatry Physician1740222025
  8. Thomas Horst, MDFamily Medicine Physician1871642082
  9. Donald Innes, P.A.Physician Assistant1164646857
  10. Carol Johnson, D.O.Family Medicine Physician1811957145
  11. Brian Jones, MPTPhysical Therapist1720063282
  12. Mary Kehl, PA CPhysician Assistant1225110224
  13. Jeffrey Lavoy, M.D.Family Medicine Physician1013002518
  14. Jennifer Lim, DDSDentist1245258748
  15. Michael MasonDriver1306649876
  16. Beverly Mikus, RNHome Health Registered Nurse1821276452
  17. Jessica MontesMassage Therapist1528941416
  18. Boriana Nikolova, FNP-BCFamily Nurse Practitioner1598432585
  19. Catrina PratherFamily Nurse Practitioner1114205317
  20. Ellen Pritchett, RDRegistered Dietitian1003999426
  21. John Sauer, FNPFamily Nurse Practitioner1588136998
  22. Emily Saunders, LCSWClinical Social Worker1750739058
  23. Zachary Segerman, PHARMDPharmacist1861933848
  24. Linda Volin, RPHPharmacist1194167973

The largest Arizona cities

  1. Phoenix31,399
  2. Tucson18,788
  3. Scottsdale11,008
  4. Mesa9,151
  5. Gilbert5,802

All of Arizona →

How to read this directory

Ajo, Arizona appears in the CMS National Plan and Provider Enumeration System with 24 registered healthcare providers spanning 16 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Ajo - 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 Ajo 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 Ajo is weighted toward Family Nurse Practitioner (4 clinicians, followed by Family Medicine Physician with 3 and Physician Assistant with 2). 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, Ajo reports roughly 0.3 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.

Of Arizona's most common specialties, Behavior Technician is the most prominent one with no provider currently listing a Ajo practice address, a coverage gap Ajo patients typically fill by traveling to a larger nearby hub.

For Ajo 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 Ajo, AZ?

There are 24 registered healthcare providers in Ajo, AZ, covering 16 specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Ajo?

The most common specialties in Ajo are Family Nurse Practitioner, Family Medicine Physician, Physician Assistant, Pharmacist, Registered Dietitian. Family Nurse Practitioner has the most providers with 4.

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.