Trevor D. Williams, PA-C
Physician Assistant · Bakersfield, CA
Trevor D. Williams, PA-C is a physician assistant with a practice address in Bakersfield, California, and NPI 1477805554, issued on Oct 12, 2012. Check the license (California PA19786, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Trevor D. Williams
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA19786 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6001 Truxtun Ave Ste D400, Bakersfield, CA 93309
- Phone
- (661) 323-8477
- Enumerated
- Oct 12, 2012
- Record last updated
- May 5, 2025
- Fax
- (661) 323-8472
- Medicare enrollment
- Enrolled (PECOS I20121228000135); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Trevor D. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA19786Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14.0 times the Medicare Part D claims of the average physician assistant in 2024
11,642 Medicare Part D claims for 704 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 260 claims were for opioids.
Most prescribed
- Levothyroxine Sodium632 claims
- Atorvastatin Calcium468 claims
- Amlodipine Besylate421 claims
- Rosuvastatin Calcium346 claims
- Omeprazole302 claims
- Lisinopril269 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $358.44
17 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Centric HealthBakersfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Trevor D. Williams among 14,451 physician assistant records in California
Trevor D. Williams, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 33% of them.
- NPI issued2012 · 33% of these records are older, 65% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2008 · median 2018 among the 7,214 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
165 physician assistant records list a practice address in Bakersfield
They are 165 of the 11,539 NPPES records with a practice address in Bakersfield, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Bakersfield → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Rodney Beaty, PA-CBakersfield, CA 933091497747596
- Suzanne Bryan, PA-CBakersfield, CA 933091780686139
- Liza Chen, PA-CBakersfield, CA 933091043294275
- Ryan Drury, P.A.Bakersfield, CA 933091477734283
- Linda Findley, P.A.-CBakersfield, CA 933091295850691
- Emily Fish, PA-CBakersfield, CA 933091205027299
- Anita Garrett, P.A.-CBakersfield, CA 933091962527366
- Rosie Holiwell, PA-CBakersfield, CA 933091548262975
Common questions
What is Trevor D. Williams, PA-C's NPI number?
Trevor D. Williams, PA-C's National Provider Identifier (NPI) is 1477805554, issued on Oct 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Trevor D. Williams, PA-C located?
The NPPES record lists a practice address at 6001 Truxtun Ave Ste D400, Bakersfield, CA, 93309. Phone: (661) 323-8477. Providers update this record themselves, so call before visiting.
How can I verify Trevor D. Williams, PA-C's license?
NPPES lists California license number PA19786, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Trevor D. Williams, PA-C prescribe under Medicare Part D?
In 2024, Trevor D. Williams, PA-C had 11,642 Medicare Part D claims for 704 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Trevor D. Williams, PA-C's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.