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 46 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. Christina Lloyd, M.A.Marriage & Family Therapist1568601235
  2. Chin-Yu Lo, MDEmergency Medicine Physician1487889341
  3. Flor LoboDental Hygienist1295696011
  4. Karen LockheartFamily Nurse Practitioner1831638824
  5. Erica LockshinSpeech-Language Pathologist1932404290
  6. Michael Lodovici, LMFTMarriage & Family Therapist1366746059
  7. Allyson Lods, RDRegistered Dietitian1013560747
  8. Elsa LoeraRehabilitation Practitioner1447377668
  9. Clarissa LoganAddiction (Substance Use Disorder) Counselor1013334515
  10. Nadia LoganLicensed Vocational Nurse1982300646
  11. Mandi London, RADTAddiction (Substance Use Disorder) Counselor1881356780
  12. Angela LongClinical Social Worker1508599929
  13. Jermaine LongRehabilitation Practitioner1871780965
  14. Melissa LongjohnAddiction (Substance Use Disorder) Counselor1427570779
  15. Monette LongmireAddiction (Substance Use Disorder) Counselor1609396100
  16. Alfredo LopezRehabilitation Practitioner1003503160
  17. Alicia Lopez, RBTBehavior Technician1881428480
  18. Amy Lopez, SUDRC IIIAddiction (Substance Use Disorder) Counselor1255178679
  19. Anissa LopezBehavior Technician1295662674
  20. Briseida LopezBehavior Analyst1750024097
  21. Cindy LopezMarriage & Family Therapist1336703446
  22. Danna LopezBehavior Technician1760102701
  23. Eloisa LopezCase Manager/Care Coordinator1033689542
  24. Fabiolla LopezDay Training/Habilitation Specialist1740935154
  25. Genevieve LopezCase Manager/Care Coordinator1013651264
  26. Gloria LopezRehabilitation Practitioner1487082756
  27. Jasmine LopezMarriage & Family Therapist1366951584
  28. Jessica Lopez, B.AMarriage & Family Therapist1477970804
  29. Kimberly LopezStudent in an Organized Health Care Education/Training Program1548136773
  30. Leticia Lopez, B.S.Rehabilitation Practitioner1306237946
  31. Lourdes LopezCase Manager/Care Coordinator1962217604
  32. Luis LopezClinical Social Worker1033848437
  33. Luis LopezDay Training/Habilitation Specialist1528790615
  34. Maria LopezLicensed Vocational Nurse1700752482
  35. Marisa Lopez, M.A, LPCCProfessional Counselor1578156899
  36. Mia LopezOther Technician1922508423
  37. Miguel Lopez, NPFamily Nurse Practitioner1609672419
  38. Nancy LopezAmbulatory Care Registered Nurse1609397173
  39. Osvaldo LopezDay Training/Habilitation Specialist1841842952
  40. Salysia LopezDental Hygienist1447622469
  41. Sofia LopezAddiction (Substance Use Disorder) Counselor1700279049
  42. Sonia LopezClinical Social Worker1780401018
  43. Stephanie Lopez, BACHELOR'S DEGREERehabilitation Practitioner1972257178
  44. Yvonne Lopez, BACase Manager/Care Coordinator1326774175
  45. Brenda Lopez CutenoCommunity Health Worker1801654470
  46. Teni Lopez-Cardenas, OTR/LPediatric Occupational Therapist1598232092
  47. Fernanda Lopez-Ramirez, LVNLicensed Vocational Nurse1396457099
  48. Paula Lopiccolo, NPNurse Practitioner1952408023
  49. Alayzha LordBehavior Technician1730889486
  50. Maria Loschen, OTR/LOccupational Therapist1235960121

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.