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 47 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. Jilayne LostraccoCase Manager/Care Coordinator1316069743
  2. Carol Lott-Smith, REGISTERED NURSERegistered Nurse1194207480
  3. Matthew Louie, M.D.Psychiatry Physician1609167311
  4. Taylor LoveBehavior Analyst1952099343
  5. Nicholle Lovely, LMFTMarriage & Family Therapist1861693798
  6. Rachel LoversRehabilitation Practitioner1619273679
  7. Lavonda LoweClinical Social Worker1093173130
  8. Lesbia LoweAddiction (Substance Use Disorder) Counselor1336457688
  9. Ebony LowryPeer Specialist1982381216
  10. Sherice LowryPeer Specialist1902584824
  11. Amber LoyaCase Manager/Care Coordinator1821541251
  12. Gabriela Lozano ChaconCommunity Health Worker1609732676
  13. Gladys Lua, FNP-CNurse Practitioner1184555427
  14. Frank LucateroCase Manager/Care Coordinator1306345822
  15. Mona LueraAddiction (Substance Use Disorder) Counselor1982271821
  16. Rachel Luevano, BABehavior Technician1326507997
  17. Delia LujanStudent in an Organized Health Care Education/Training Program1952260424
  18. Dianne LumanSpeech-Language Pathologist1639002249
  19. Henry Lumpkins, OTROccupational Therapist1093121311
  20. Danelly Luna, BCBABehavior Analyst1528565934
  21. Gina Luna, FNP-BCFamily Nurse Practitioner1558696740
  22. Vanessa LunaCase Manager/Care Coordinator1962137992
  23. Iran Luna Herrera, BEHAVIOR ANALYSTBehavior Analyst1346817269
  24. Quan Luong, D.O.Pediatrics Physician1336103456
  25. Kathryn LuongoCase Manager/Care Coordinator1649518341
  26. Alejandra LupercioLicensed Vocational Nurse1518855501
  27. Lee-Jiuan Luque, O.D.Optometrist1316917339
  28. Latonia Luu, PHARM.D.Pharmacist1740736248
  29. Mindy Luu, RPHPharmacist1194100610
  30. Mikhail LvovichPharmacist1407220759
  31. Amanda Ly, ODOptometrist1902413495
  32. Britney LyCase Manager/Care Coordinator1538821756
  33. Thaovari Ly, OTR/LOccupational Therapist1730621640
  34. Olga Lyass, M.D.Nuclear Medicine Physician1134271067
  35. Latosha LynchBehavior Technician1598440661
  36. Andrew LyonsStudent in an Organized Health Care Education/Training Program1275229247
  37. Rita Ma, PHDClinical Psychologist1245249390
  38. Brandy MabinMarriage & Family Therapist1871819912
  39. Stuart Mac Pherson, DDSDentist1205891660
  40. John MacarthurAddiction (Substance Use Disorder) Counselor1417549403
  41. Denise MacePeer Specialist1710708987
  42. Yesenia Macedo-LopezBehavior Technician1912639006
  43. Oscar Macias, RDHDental Hygienist1548579527
  44. Victoria Macias, LMFTMarriage & Family Therapist1699065433
  45. Aileen MacielSpeech-Language Assistant1780496539
  46. Charvetta MackeyAddiction (Substance Use Disorder) Counselor1669190765
  47. Cynthia Mackey, D.O.Hospice and Palliative Medicine (Emergency Medicine) Physician1598966053
  48. Lakesha MackeyLicensed Vocational Nurse1740141084
  49. Donna Macnair, RNAmbulatory Care Registered Nurse1992225346
  50. Jonathan Maddatu, DDSGeneral Practice Dentistry1235317744

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.