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 25 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. Devan FarrisSpeech-Language Pathologist1740841667
  2. Abdallah Farrukh, MDNeurological Surgery Physician1932135266
  3. Omar Farrukh, DONeuromusculoskeletal Medicine & OMM Physician1619530094
  4. Maria Fassbender, RNRegistered Nurse1356060123
  5. Matthew FatherreeSocial Worker1437949120
  6. Patricia Faza, RNHome Health Registered Nurse1356133524
  7. Jamie FeenstraBehavior Analyst1811781214
  8. Amanda FelixSpeech-Language Pathologist1437086337
  9. Kimberly FelixAddiction (Substance Use Disorder) Counselor1861380131
  10. Marie Helene Felix, RPHPharmacist1356625644
  11. Jenifer FergusonRegistered Nurse1740900760
  12. Karen Ferguson, MFTMarriage & Family Therapist1538298310
  13. Lisa FergusonCase Manager/Care Coordinator1427649151
  14. Mark FergusonAddiction (Substance Use Disorder) Counselor1831516558
  15. Rose FergusonRehabilitation Practitioner1821355389
  16. Mayra Fernandez, RNRegistered Nurse1003687468
  17. Thelma Fernandez, M.D.Family Medicine Physician1861505158
  18. Nancy Ferrel, M.D.Emergency Medicine Physician1053585141
  19. Peggy FidlerMarriage & Family Therapist1275810186
  20. Amyah FieldsBehavior Technician1699694091
  21. Candy FieldsRegistered Nurse1508248063
  22. Kemisha FieldsClinical Social Worker1437574464
  23. Monet FieldsMarriage & Family Therapist1447682000
  24. Nefeteri FieldsBehavior Technician1013876564
  25. William Fields, IMF 69113Mental Health Counselor1700915949
  26. Angel FigueroaAddiction (Substance Use Disorder) Counselor1427500974
  27. Carmen Figueroa, LCSWClinical Social Worker1336495548
  28. Davy Figueroa, M.D.Hospitalist Physician1780794735
  29. Isabella FigueroaBehavior Technician1962275701
  30. Nina Figueroa RodriguezRehabilitation Practitioner1740780246
  31. Monique FimbresRegistered Nurse1376274019
  32. Amanda FinkPeer Specialist1598656597
  33. Jerica FinleyStudent in an Organized Health Care Education/Training Program1184082224
  34. May FinleyNurse Practitioner1073976528
  35. Tommy FinleyStudent in an Organized Health Care Education/Training Program1962632000
  36. Yezica Fisher, R511School Counselor1821949132
  37. Korinna FiteOccupational Therapy Assistant1629629746
  38. Junaid Fitter, M.D.Internal Medicine Physician1255466835
  39. Shannon FitzgeraldMental Health Counselor1033362595
  40. Sheri FlanaganAddiction (Substance Use Disorder) Counselor1760795595
  41. Lovell FlemingAddiction (Substance Use Disorder) Counselor1740563816
  42. Kevin FletcherCase Manager/Care Coordinator1528522398
  43. Mary Flint Herrera, RNOccupational Health Registered Nurse1104574557
  44. Stacey Floersheim, MAAssistant Behavior Analyst1982522595
  45. Angelica Flores, AGACNPAcute Care Nurse Practitioner1073329025
  46. Anthony FloresRehabilitation Practitioner1346030772
  47. Aurelio FloresRehabilitation Practitioner1376873869
  48. Charles FloresAddiction (Substance Use Disorder) Counselor1013032929
  49. Cindi FloresDay Training/Habilitation Specialist1811799265
  50. Daniella Flores, NONEBehavior Technician1881397099

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.