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 22 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. Lanshaniqua DixonBehavior Technician1093390460
  2. Renee DixonCommunity Health Worker1558163519
  3. Merlyn Dizon, D.D.S.General Practice Dentistry1174646780
  4. Kateri DluzakStudent in an Organized Health Care Education/Training Program1538527676
  5. Theresa DluzakMarriage & Family Therapist1891496584
  6. Sheena DoBehavior Technician1952933202
  7. Diana DoanPharmacist1194263574
  8. Rose Dobbins, PTPhysical Therapist1407064959
  9. Joana Domingo, LMFTMarriage & Family Therapist1730206285
  10. Renaly DomingoBehavior Technician1760941058
  11. Ana DominguezCase Manager/Care Coordinator1619616802
  12. Salma DominguezBehavior Technician1427517705
  13. Katie DonihooMarriage & Family Therapist1760820062
  14. Julia DonisBehavior Technician1871345645
  15. Natalie DonisCase Manager/Care Coordinator1912464850
  16. Erin Donohue, RN, NPPsychiatric/Mental Health Registered Nurse1639938681
  17. Arvin Doostan, MDDermatology Physician1770740862
  18. Tiffany DoranCase Manager/Care Coordinator1265800684
  19. David Doriguzzi, PA-CMedical Physician Assistant1730195728
  20. Brian DornProfessional Counselor1255903431
  21. Kristina Doronila GaddiLicensed Vocational Nurse1679920227
  22. Antoinette DorrisCase Manager/Care Coordinator1801324553
  23. Marcus DorrisAddiction (Substance Use Disorder) Counselor1245538321
  24. Crystal DortonAddiction (Substance Use Disorder) Counselor1487024626
  25. Gary Dostalek, OTOccupational Therapist1447276860
  26. Roganae DouglasAddiction (Substance Use Disorder) Counselor1609638865
  27. Shinece DouglasStudent in an Organized Health Care Education/Training Program1649882978
  28. Christine DouglassMarriage & Family Therapist1972862688
  29. Jennifer Douglass, IMFTMental Health Counselor1932471828
  30. Trisha Douglass, RDAGeneral Practice Dentistry1164943809
  31. Brittany Dow, RNCase Management Registered Nurse1952276172
  32. Megan DownerBehavior Technician1922567478
  33. Nathaniel Downer, MTMassage Therapist1053834838
  34. Amy DoyleCase Manager/Care Coordinator1770614471
  35. Erica DoyleClinical Social Worker1427411297
  36. Charles Drake, PSY.D.Clinical Psychologist1326474933
  37. Veronica DrakeMarriage & Family Therapist1609588243
  38. Else Drengler, D.C.Chiropractor1700957545
  39. Alysa DrewBehavior Technician1467165092
  40. Adrian Dryer, RADTAddiction (Substance Use Disorder) Counselor1184349052
  41. Michele Du Bow, PSYDClinical Psychologist1538438247
  42. Shirley Duarte, LMFTMarriage & Family Therapist1740582758
  43. Julee DudleyCase Manager/Care Coordinator1376844894
  44. Alena Dudnik, BCBABehavior Technician1376232595
  45. Ricardo Duenas, D.C.Chiropractor1851471627
  46. Christine Dugom, RDHDental Hygienist1578901864
  47. Eva DuldulaoRegistered Nurse1063389120
  48. Anthony Dulgeroff, M.D.Internal Medicine Physician1720199763
  49. Glorianna Dunar, PTPhysical Therapist1790995280
  50. Darrell Duncan, HAD HA 8385Hearing Instrument Specialist1194385492

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.