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 76 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. Susan Straub, RNCommunity Health Registered Nurse1154843340
  2. Erica StrawterSpeech-Language Pathologist1205763208
  3. Nicole StricklandCase Manager/Care Coordinator1396009486
  4. Randy StricklandClinical Social Worker1740742147
  5. Tonnette Stubbs-Goethe, LCSWClinical Social Worker1770896706
  6. Travis Studt, DCChiropractor1639104243
  7. April Stump-EarwoodAddiction (Substance Use Disorder) Counselor1417464066
  8. Viktoriia StupakAssistant Behavior Analyst1174397897
  9. Andrea Stutelberg, PTPhysical Therapist1467830505
  10. Karl Stutelberg, MSPTPhysical Therapist1255385746
  11. Michelle Suarez Newbrey, RPTPhysical Therapist1497061642
  12. Omar Sudqi, B.D.S.Dentist1083732010
  13. Olabisi Sule-OduClinical Social Worker1750274288
  14. Barry Sultan, ODOptometrist1821128240
  15. Jerry SummersCase Manager/Care Coordinator1659636447
  16. Yolanda SummersAddiction (Substance Use Disorder) Counselor1306051685
  17. Sarmela Sunder, MDOtolaryngology/Facial Plastic Surgery Physician1417053760
  18. Shun Sunder, M.DSpecialist1376557132
  19. Vinay Sunku, MDNephrology Physician1326039405
  20. Sridevi SurampudiOccupational Therapist1225429517
  21. Duminda Suraweera, M.D.Gastroenterology Physician1629411756
  22. Valarie SurlesLicensed Vocational Nurse1124536271
  23. Michael SurvertRehabilitation Practitioner1093403339
  24. Aiesha SuttonCounselor1649578089
  25. Kyoko Suzuki, FNPFamily Nurse Practitioner1679089056
  26. James SvobodaMarriage & Family Therapist1548579667
  27. Alphonso Swaby, D.O.Family Medicine Physician1447356431
  28. Marquetra SwayneStudent in an Organized Health Care Education/Training Program1407405582
  29. David SwiftCase Manager/Care Coordinator1992945059
  30. Richard Swiger, LVNLicensed Vocational Nurse1366154437
  31. Herbert Sy, NPFamily Nurse Practitioner1114512886
  32. Khadija SyMidwife1780513382
  33. Arthur SzokeCase Manager/Care Coordinator1457542565
  34. Pedro TafollaPeer Specialist1407510258
  35. Shelmalyne TagabuelBehavior Technician1497311450
  36. Rosavilla Tagaro, MSN, APRN, FNP-CFamily Nurse Practitioner1225865793
  37. Benyamin Taghvaei, DMDDentist1932836988
  38. Cindy TakamotoClinical Social Worker1669668513
  39. Renee TalensCommunity Health Worker1134814858
  40. Karen Tam, PHARM.D.Pharmacist1548684038
  41. Bea Maber TamayoLicensed Vocational Nurse1740992445
  42. Stacy Tamayo, IMFTMarriage & Family Therapist1669764429
  43. Edward Tammara, P.A.-CPhysician Assistant1316049380
  44. Luis Tan, M.D.Hospitalist Physician1295823854
  45. Porvenir Tan, NPFamily Nurse Practitioner1700714383
  46. Loreen Tan-Eslao, M.D.Pediatrics Physician1316194434
  47. Christina Tang, ODOptometrist1093357501
  48. Michael Tang, MSWClinical Social Worker1639404718
  49. Martin Tanner, LCSWClinical Social Worker1003175167
  50. Bishoy Tannious, PHARMDPharmacist1801260237

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.