NPPES file of Aug 9, 2026

Doctors and health care providers in Lancaster, CA

4,273 individual NPPES records list a practice address in Lancaster, 49th of 812 California cities. The largest group is behavior technician: 436, 10% of the city's records, against 18% across California. Page 2 of 86.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Lancaster in California

  • Rank in California49th of 812 cities by records
  • Share of the state0.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.6% of all records

Compared with California as a whole, Lancaster has 4.5× the state's share of peer specialist records and 0.56× its share of physical therapist records.

Providers in Lancaster, alphabetically

  1. Juana AguileraMental Health Counselor1699144147
  2. Kimberly AguileraBehavior Technician1568921005
  3. Carlos Aguilera Canchola, D.D.S.Dentist1629935358
  4. Edwin AguirreClinical Social Worker1265149306
  5. Evelyn AguirreClinical Social Worker1952941437
  6. Kaily AguirreBehavior Technician1164160263
  7. Tracie Aguirre Gonzalez, RBTBehavior Technician1235980962
  8. Monique Aguirre RamosDay Training/Habilitation Specialist1013733997
  9. Gurpreet AhluwaliaMarriage & Family Therapist1720435084
  10. Javeed Ahmed, MDSpecialist1689627051
  11. Bryan AhnDentist1679146823
  12. Patricia Ahntholz, PHARMDPharmacist1154617314
  13. Joseph Ahoubim, DOInternal Medicine Physician1477139319
  14. Hoda Haydari Ahwazi, MDFamily Medicine Physician1952980336
  15. Josephine Aideloje, NPPsychiatric/Mental Health Nurse Practitioner1790272243
  16. Charlette AishouaBehavior Analyst1366308116
  17. Jamoke Ajetunmobi, PHARMDPharmacist1275090797
  18. Stephanie Akin, AMFT, APCCMarriage & Family Therapist1144007089
  19. Oluwafemi AkinolaDay Training/Habilitation Specialist1467066258
  20. Sarah AkinwaleMental Health Counselor1912489592
  21. Noor Al-Hassan, ODOptometrist1588208946
  22. Toni Alameda, LVN, CPHTLicensed Vocational Nurse1467225219
  23. David AlarconBehavior Technician1790478618
  24. Lisa AlarconCase Manager/Care Coordinator1457699126
  25. Guillermo AlasStudent in an Organized Health Care Education/Training Program1285908186
  26. Hilary AlasBehavior Technician1528745205
  27. Cristal Alatorre PerezBehavior Technician1831749266
  28. Levi AlbertoBehavior Technician1003706409
  29. Claudia AlcaldeMedical Physician Assistant1093454944
  30. Jose AlegarbesPsychiatric/Mental Health Nurse Practitioner1801478417
  31. Genoveva AlejandreMedical Physician Assistant1417888074
  32. Fernando Alessandri, PHDClinical Psychologist1952824286
  33. Regina AlessoRehabilitation Counselor1841626728
  34. Vicki Alexander-HessClinical Social Worker1508052721
  35. Jakelyn AlfaroMarriage & Family Therapist1619758075
  36. Jose Alfaro, MFTMarriage & Family Therapist1194057190
  37. Imaobong AliyuAdult Psychiatric/Mental Health Registered Nurse1497343206
  38. Aerial AllenMarriage & Family Therapist1346721859
  39. Latonya Allen, MACase Manager/Care Coordinator1124668470
  40. Rachel Allen, NPFamily Nurse Practitioner1104327881
  41. Richard AllenAddiction (Substance Use Disorder) Counselor1659171080
  42. Sam Allen, MDObstetrics & Gynecology Physician1982740841
  43. Shalonte Allen-Carrasquillo, FNPFamily Nurse Practitioner1013615186
  44. Evette Allen-Duren, MFT-IMarriage & Family Therapist1386183721
  45. Julie AlmaguerAddiction (Substance Use Disorder) Counselor1942013982
  46. Firas Almhesen, DDSDentist1376437822
  47. Cristina Alonso FloresBehavior Technician1013678663
  48. Kelly Alora, M.A., CCC-SLPSpeech-Language Pathologist1053856344
  49. Kristy AlstonDoula1669830659
  50. Maria Altamirano, RNStudent in an Organized Health Care Education/Training Program1942873856

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Lancaster, California appears in the CMS National Plan and Provider Enumeration System with 4,273 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 Lancaster - 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 Lancaster 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 Lancaster is weighted toward Behavior Technician (436 clinicians, followed by Marriage & Family Therapist with 331 and Addiction (Substance Use Disorder) Counselor with 283). 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 California's population, Lancaster reports roughly 11 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 Lancaster 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 Lancaster, CA?

There are 4,273 registered healthcare providers in Lancaster, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Lancaster?

The most common specialties in Lancaster are Behavior Technician, Marriage & Family Therapist, Addiction (Substance Use Disorder) Counselor, Case Manager/Care Coordinator, Clinical Social Worker. Behavior Technician has the most providers with 436.

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.