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 15 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. Kellye CharlesAddiction (Substance Use Disorder) Counselor1881126472
  2. Byron ChatmanAddiction (Substance Use Disorder) Counselor1770175754
  3. Suzanne Chaudhry, M.D.Obstetrics & Gynecology Physician1730223066
  4. Alexis ChavezCommunity Health Worker1891329512
  5. Gabriel Chavez, RADTAddiction (Substance Use Disorder) Counselor1861106825
  6. Jennifer ChavezCase Manager/Care Coordinator1588795272
  7. Jessica ChavezCase Manager/Care Coordinator1649589102
  8. Rodolfo Chavez, RDADental Assistant1790294627
  9. Rudy ChavezAddiction (Substance Use Disorder) Counselor1043189152
  10. Samarah ChavezBehavior Analyst1447009360
  11. Sandy ChavezStudent in an Organized Health Care Education/Training Program1316298177
  12. Sarah ChavezBehavior Technician1649154055
  13. Shannon Chavez, PACPhysician Assistant1952576191
  14. Tranell ChavezRegistered Nurse1962922419
  15. Zoe ChavezAddiction (Substance Use Disorder) Counselor1508572165
  16. Marcus Chavez JrAddiction (Substance Use Disorder) Counselor1952275166
  17. Diana Chavez-OlivaCase Manager/Care Coordinator1871239244
  18. Lily CheNutritionist1598227613
  19. Milton Cheek, SUDRC#16932Addiction (Substance Use Disorder) Counselor1003681990
  20. Sophia ChellappaPhysical Therapy Assistant1093594095
  21. Kristi Chen, CPNPPediatric Nurse Practitioner1821541178
  22. Miaoyun Chen, LCSWSocial Worker1164062030
  23. Naili Chen, D.O., MPH, MASCInternal Medicine Physician1649251661
  24. Tiffany Chen Romero, ODCorneal and Contact Management Optometrist1467121558
  25. Ponnamma Chenanda, M.D.Anesthesiology Physician1962426494
  26. Kristine Chermakyan, APCCProfessional Counselor1669141933
  27. Man-Ching Cheung, LCSWClinical Social Worker1265505259
  28. Mary Chheng, PHARMDPharmacist1720471659
  29. Kwang Hyun Chi, D.D.S.General Practice Dentistry1871955336
  30. Bryan Chico, ASW, MSWClinical Social Worker1386313815
  31. Robert ChildressPulmonary Function Technologist Certified Respiratory Therapist1548748528
  32. Vicki ChildressCase Manager/Care Coordinator1760124549
  33. Christopher Chin, MPAP, PA-CPhysician Assistant1336520311
  34. Anthony Chin-Quee, M.D.Otolaryngology Physician1437445558
  35. Issa ChinnAddiction (Substance Use Disorder) Counselor1629589692
  36. Tiffany Chinn, RNGeneral Practice Registered Nurse1194359059
  37. Angelica Chino MedinaBehavior Technician1679381131
  38. Chun Chiu, RPHPharmacist1639478423
  39. Renee Chmiel, PSY.D.Clinical Psychologist1801026984
  40. In Bae Cho, PHARM DPharmacist1609365089
  41. Rachel ChoiPharmacist1104330521
  42. Alexander Chokler, M.D.Surgery Physician1588612022
  43. Douglas Chong, DPTPhysical Therapist1417164245
  44. Ronit Choresh-GeronMarriage & Family Therapist1942664990
  45. Andrew ChouPharmacist1316411895
  46. Lydia Chowa, DR.PH. RD, RN, DNPRegistered Nurse1710587316
  47. Manorama Chowdhry, MDAnesthesiology Physician1336310150
  48. Paul Chu, RPHPharmacist1942747944
  49. Choon Wha Chun, M.D.Anesthesiology Physician1619954831
  50. Bo Ram Chung, CRNACertified Registered Nurse Anesthetist1720472020

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.