NPPES file of Aug 9, 2026

Doctors and health care providers in Livermore, CA

994 individual NPPES records list a practice address in Livermore, 190th of 812 California cities. The largest group is pharmacist: 194, 20% of the city's records, against 3% across California. Page 14 of 20.

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

The 8 largest groups in Livermore

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Livermore in California

  • Rank in California190th of 812 cities by records
  • Share of the state0.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups30.7% of all records

Compared with California as a whole, Livermore has 5.8× the state's share of pharmacist records and 0.11× its share of behavior technician records.

Providers in Livermore, alphabetically

  1. Sallie Olsen, PH.DClinical Psychologist1881621845
  2. Lori OlsonSchool Counselor1629923172
  3. William Ong, MDPediatrics Physician1508944604
  4. Coral OonPharmacist1346771417
  5. Gabriella Orozco, HISHearing Instrument Specialist1508628975
  6. Chidinma Ortiz, RNRegistered Nurse1346905288
  7. Congjun Ouyang, L. ACAcupuncturist1316193097
  8. Kathy Oxsen, MS, MFTMarriage & Family Therapist1972795227
  9. Kristina Pacheco, RNRegistered Nurse1982408688
  10. Leanndra Pack, LCSWClinical Social Worker1780195305
  11. Margaret Packwood, AUDAudiologist1275956542
  12. Adam Paiso, D.C.Chiropractor1487668570
  13. Sandy Pak, PHARMDPharmacist1306938147
  14. Monnique Palana, NPAdult Health Nurse Practitioner1316710106
  15. June Pan, MDFamily Medicine Physician1184366544
  16. Diana PardoBehavior Analyst1801243522
  17. Thomas Parker, PTAPhysical Therapy Assistant1215145859
  18. Prexxie Pascual, RNRegistered Nurse1700624723
  19. Roxanne PassamaPharmacist1447781455
  20. Goral Patel, DDSDentist1972203826
  21. Pradeepkumar PatelPharmacist1538690169
  22. Sima Patel, M.D.Physical Medicine & Rehabilitation Physician1922495464
  23. Candace Payne, DMDGeneral Practice Dentistry1730493099
  24. Janelle Peck, M.A., LEPSchool Psychologist1558758219
  25. Andrea Pedersen, NPNurse Practitioner1356689871
  26. Gary Peer, MDInternal Medicine Physician1245346956
  27. Adriann Pemberton, LCSWClinical Social Worker1851405377
  28. Precious PenarandaOccupational Therapist1962251967
  29. Amelia PennewellMarriage & Family Therapist1346773660
  30. Shreya PenukondaDentist1215509245
  31. Delia Pereida-Adams, O.T.R.Occupational Therapist1558670356
  32. Mauricio Perez De La VegaBehavior Analyst1700370897
  33. Kohle PermenterLactation Consultant (Non-RN)1801643424
  34. Janice Perry, MFTMental Health Counselor1780997999
  35. Jordan Perry, PPS, AMFTSchool Counselor1225824998
  36. Steven Perry, ODOptometrist1821571043
  37. Allison Petersdorf, MA PPS, MFTSchool Counselor1861347957
  38. Mary Petersen, PHARM DPharmacist1609176163
  39. Jonathan Pham, ODOptometrist1821724873
  40. Sally Pham, DPMFoot & Ankle Surgery Podiatrist1730218678
  41. Terrilynn Phillips, MSRPHPharmacist1265531701
  42. Andrea Picchi, MS, NPFamily Nurse Practitioner1063573251
  43. Maria Pilecki, MS COUNSELINGCounselor1558645432
  44. Jose PinalMental Health Counselor1013317932
  45. Paul PingolPhysical Therapy Assistant1902418379
  46. Kim Pittis, MTMassage Therapist1225635535
  47. Dd PiyanontaleeCounselor1649901570
  48. Gregory PonOrthopedic Physical Therapist1689030173
  49. Rochelle Kara PonceBehavior Technician1437925260
  50. Lezah Pope, LMFTMarriage & Family Therapist1255004347

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

Livermore, California appears in the CMS National Plan and Provider Enumeration System with 994 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 Livermore - 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 Livermore 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 Livermore is weighted toward Pharmacist (194 clinicians, followed by Marriage & Family Therapist with 67 and General Practice Dentistry with 44). 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, Livermore reports roughly 2.6 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Livermore practice address, a coverage gap Livermore patients typically fill by traveling to a larger nearby hub.

For Livermore 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 Livermore, CA?

There are 994 registered healthcare providers in Livermore, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Livermore?

The most common specialties in Livermore are Pharmacist, Marriage & Family Therapist, General Practice Dentistry, Chiropractor, Dentist. Pharmacist has the most providers with 194.

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.