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 80 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. Isabel Usuga CastrillonCommunity Health Worker1558018739
  2. Jacqueline UyFamily Medicine Physician1447661483
  3. Syed UzairInternal Medicine Physician1306424429
  4. Amanda VadneyMarriage & Family Therapist1770711228
  5. Amir Vahdani, DMDGeneral Practice Dentistry1356993729
  6. Destiny ValadezCommunity Health Worker1215447727
  7. Val Valco, M.D.Internal Medicine Physician1841495678
  8. Adrienne ValdezCommunity Health Worker1235807850
  9. Heidi Valdez, RADTAddiction (Substance Use Disorder) Counselor1073294179
  10. Joseph ValdezCase Manager/Care Coordinator1407526403
  11. Engracia Valdez GuzmanBehavior Technician1316626203
  12. Nancy ValdiviaRehabilitation Practitioner1306120274
  13. Blanca ValdovinosOther Technician1750881256
  14. Heather Valdovinos, AMFTMarriage & Family Therapist1447710702
  15. Juanita ValenciaDental Assistant1073825915
  16. Paulina ValenciaBehavior Technician1740749241
  17. Selene Valencia, ACSWMental Health Counselor1811426927
  18. Carrie ValentineDay Training/Habilitation Specialist1427213339
  19. Alexandra ValentinoOccupational Therapist1063982783
  20. Joseph Valentino, MDFamily Medicine Physician1437262821
  21. Adriana ValenzuelaCommunity Health Worker1639952229
  22. David ValenzuelaPeer Specialist1710808332
  23. Emely ValenzuelaBehavior Technician1710571021
  24. Jackie ValenzuelaCase Manager/Care Coordinator1467204909
  25. Vanessa VallartaRehabilitation Practitioner1740010990
  26. Veronica ValleBehavior Technician1891254173
  27. Victor Valle, LCSWClinical Social Worker1770083305
  28. Violeta Vallejo-Sinavsky, M.D.Internal Medicine Physician1013042357
  29. Enrique Vallota, M.D.Family Medicine Physician1689862575
  30. Susan Vanallen, LCSWMental Health Counselor1659791234
  31. Geralyn Vander Vis, RDRegistered Dietitian1053822098
  32. Julian Vanderlinden, PTPhysical Therapist1023775103
  33. Gail VanettenAddiction (Substance Use Disorder) Counselor1750621041
  34. Hlee Vang, MFTMarriage & Family Therapist1346499282
  35. Surya Vanguri, ASWSocial Worker1518546704
  36. Shirley VanwilpeAdult Psychiatric/Mental Health Registered Nurse1720711708
  37. G. Varaprasathan, M.D.Anatomic Pathology & Clinical Pathology Physician1073507711
  38. Ana Varay, PHDRehabilitation Counselor1114645371
  39. Bernadet VardehPharmacist1093255887
  40. Maria Angelica Varela, FNP-CStudent in an Organized Health Care Education/Training Program1194648394
  41. Mary Ann VarelaBehavior Technician1134661036
  42. Alexander VargasBehavior Technician1528757440
  43. Diana VargasCase Manager/Care Coordinator1942627591
  44. Gloria VargasDay Training/Habilitation Specialist1467375659
  45. Jacqueline Vargas, MSWClinical Social Worker1699485375
  46. Joanna VargasClinical Social Worker1104294214
  47. Marlene VargasRehabilitation Practitioner1730805532
  48. Melvin VargasCommunity Health Worker1699475970
  49. Paula VargasMarriage & Family Therapist1558701409
  50. Vanassa VargasMarriage & Family Therapist1245469071

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.