NPPES file of Aug 9, 2026

Doctors and health care providers in Cerritos, CA

1,842 individual NPPES records list a practice address in Cerritos, 124th of 812 California cities. The largest group is behavior technician: 668, 36% of the city's records, against 18% across California. Page 32 of 37.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Cerritos in California

  • Rank in California124th of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups48.8% of all records

Compared with California as a whole, Cerritos has 3.7× the state's share of psychiatric/mental health registered nurse records and 0.44× its share of student in an organized health care education/training program records.

Providers in Cerritos, alphabetically

  1. I-Hsiang Shu, MDInternal Medicine Physician1790218774
  2. Crisel Fleur SiaNeuromuscular Medicine (Physical Medicine & Rehabilitation) Physician1053098368
  3. Shaun SiaRegistered Nurse1104479054
  4. Nicole SibalMental Health Counselor1427705946
  5. Rachel Siegel, NPGerontology Nurse Practitioner1518620871
  6. Kevin Sielky, MSWClinical Social Worker1285875948
  7. Henry SierckeMarriage & Family Therapist1922562826
  8. Erika SierraMarriage & Family Therapist1245515279
  9. Michelle Silverman, NPNurse Practitioner1326802364
  10. William Sim, M.D.Internal Medicine Physician1902166531
  11. Mary Simmons, PT CLTPhysical Therapist1609081199
  12. Kirkprecha SimplisBehavior Technician1114580313
  13. Clifford SimsBehavior Technician1427905413
  14. Matthew SinclairBehavior Technician1720566854
  15. Hardev Singh, D.M.D.Periodontics1356404073
  16. Satomai SiofeleBehavior Technician1770305443
  17. Louis SithuPrimary Care Nurse Practitioner1306318225
  18. Parnika SivakumarBehavior Technician1629950472
  19. Karam Skaf, LMFTMarriage & Family Therapist1063234672
  20. Chelsea SmallClinical Social Worker1811365729
  21. Byron Smith, M.S.Marriage & Family Therapist1801253984
  22. Eric Smith, MEDICAL CASE WORKERCounselor1093862781
  23. Jazmine SmithBehavior Technician1316500218
  24. Linnea Smith, PA-CRheumatology Physician1275464927
  25. Kellie SnarrBehavior Technician1881416535
  26. Julianne SohnBehavior Technician1689272312
  27. Nancy SolorzanoClinical Social Worker1609421486
  28. Sherra Son, OTR/LOccupational Therapist1487963005
  29. Jess Soria, D.C.Occupational Health Chiropractor1750319901
  30. Rosemarie SorianoFamily Nurse Practitioner1477327724
  31. Ana SortoRehabilitation Practitioner1215102025
  32. Luz SosaBehavior Technician1922822832
  33. Kristen Soto, N/AMarriage & Family Therapist1154650224
  34. Naomi SotoBehavior Technician1427757228
  35. Sandra SotoBehavior Technician1396210282
  36. Patricia SowardCase Manager/Care Coordinator1003631680
  37. David Sparks, DDSOrthodontics and Dentofacial Orthopedics Dentistry1417087842
  38. Clairessa Spencer, MSW INTERNMental Health Counselor1114114519
  39. T. SpencerHome Health Aide1407659972
  40. Jirawan Srivivatanakul, D.D.S.General Practice Dentistry1053456251
  41. Gordon St.mary, PSY.D.Clinical Psychologist1164430229
  42. Michelle StandridgeBehavior Technician1225855448
  43. Kimberly Statham, LMFTMarriage & Family Therapist1194672584
  44. Dennis Steele, PHD.Counseling Psychologist1871557421
  45. Lauren SteeleBehavior Technician1669077376
  46. Amy SteinerBehavior Technician1013551621
  47. Catherine Stepan, NPPsychiatric/Mental Health Nurse Practitioner1619165529
  48. Benjamin Stepanoff, PSY.D.Clinical Psychologist1700110285
  49. Naya SterlingBehavior Technician1992303861
  50. Stephanie StimsonBehavior Technician1942848080

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

Cerritos, California appears in the CMS National Plan and Provider Enumeration System with 1,842 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 Cerritos - 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 Cerritos 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 Cerritos is weighted toward Behavior Technician (668 clinicians, followed by Clinical Social Worker with 121 and Marriage & Family Therapist with 109). 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, Cerritos reports roughly 4.7 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.

Of California's most common specialties, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Cerritos practice address, a coverage gap Cerritos patients typically fill by traveling to a larger nearby hub.

For Cerritos 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 Cerritos, CA?

There are 1,842 registered healthcare providers in Cerritos, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Cerritos?

The most common specialties in Cerritos are Behavior Technician, Clinical Social Worker, Marriage & Family Therapist, Pharmacist, Family Nurse Practitioner. Behavior Technician has the most providers with 668.

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.