NPPES file of Aug 9, 2026

Janice Knowlton, PA

Medical Physician Assistant · Bakersfield, CA

Janice Knowlton, PA is a medical physician assistant with a practice address in Bakersfield, California, and NPI 1912116096, issued on May 22, 2007. Check the license (California PA12497, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912116096
Name
Janice Knowlton
Credential
PA
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA12497 CA
Self-reported in NPPES; status is on the state search
Practice location
3008 Sillect Ave, Bakersfield, CA 93308
Phone
(661) 616-9300
Enumerated
May 22, 2007
Record last updated
Jun 12, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(661) 616-9301
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3008 Sillect Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Muhammad Alim, MDPulmonary Disease Physician1588619464
  2. William Baker, M.D.Internal Medicine Physician1720040793
  3. Patrick Daley, M.D.Family Medicine Physician1285624502
  4. Kimberly Hatton, NPNurse Practitioner1861839425
  5. Anthonia Okoyeuzu, RNFamily Nurse Practitioner1467287664
  6. Rowena Ventayen, M.D.Internal Medicine Physician1952363376

Verify Janice Knowlton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA12497
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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6.8 times the Medicare Part D claims of the average medical physician assistant in 2024

7,766 Medicare Part D claims for 475 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 197 claims were for opioids.

  1. Janice Knowlton7,766
  2. Specialty average1,148

Most prescribed

  1. Atorvastatin Calcium367 claims
  2. Amlodipine Besylate292 claims
  3. Levothyroxine Sodium290 claims
  4. Gabapentin170 claims
  5. Farxiga167 claims
  6. Omeprazole163 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.

Industry payments in 2024: $2,341.16

143 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Janice Knowlton$2,341.16
  2. Specialty average$1,055.00

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Janice Knowlton among 3,376 medical physician assistant records in California

Janice Knowlton, PA is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 20% of them.

  • NPI issued2007 · 20% of these records are older, 68% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2014 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Stephanie Foe, PA-CBakersfield, CA 933081447483318
  2. Brandy Brooks, PA-C, EDDBakersfield, CA 933091407214091
  3. Carlos Flores, PABakersfield, CA 933091275635633
  4. Pam Griffin, P.A.Bakersfield, CA 933091740453059
  5. Rebecca Jett, PABakersfield, CA 933071043245418
  6. Abreona MarroccoBakersfield, CA 933091487445474
  7. Geo Mathew, PA-CBakersfield, CA 933091215990205
  8. Thomas Miller, PA-CBakersfield, CA 933091407978158

Common questions

What is Janice Knowlton, PA's NPI number?

Janice Knowlton, PA's National Provider Identifier (NPI) is 1912116096, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Janice Knowlton, PA located?

The NPPES record lists a practice address at 3008 Sillect Ave, Bakersfield, CA, 93308. Phone: (661) 616-9300. Providers update this record themselves, so call before visiting.

How can I verify Janice Knowlton, PA's license?

NPPES lists California license number PA12497, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Janice Knowlton, PA prescribe under Medicare Part D?

In 2024, Janice Knowlton, PA had 7,766 Medicare Part D claims for 475 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

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.