Kristen Barnum, PA
Medical Physician Assistant · Bonita, CA
Kristen Barnum, PA is a medical physician assistant with a practice address in Bonita, California, and NPI 1720856966, issued on Dec 18, 2023. Check the license (California PA66813, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kristen Barnum
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License numbers
- PA66813 CA
PA01741 RI
Self-reported in NPPES; status is on the state search - Practice location
- 4358 Bonita RD Ste 400, Bonita, CA 91902
- Phone
- (619) 695-1266
- Enumerated
- Dec 18, 2023
- Entity
- Type 1 · individual
Also registered at 4358 Bonita RD Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karleigh Powell, PA-CPhysician Assistant1073115697
Verify Kristen Barnum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA66813Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
79% fewer Medicare Part D claims than the average medical physician assistant in 2024
242 Medicare Part D claims for 158 beneficiaries, against an average of 1,139 among the 25,090 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Methylprednisolone33 claims
- Azithromycin29 claims
- Amoxicillin-Clavulanate Potass14 claims
- Prednisone14 claims
- Cephalexin13 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.
One hospital or facility affiliation
- Monica Perlman MD IncSan Diego, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Medical Physician Assistant providers in California
There are 3,489 medical physician assistant records in California.
Other medical physician assistant records in California
- Bridget Abajian, PA-CLos Angeles, CA1518677061
- Crispin Abbott, PHYSICIAN ASSISTANTThousand Oaks, CA1063467926
- Abdol Hamid Abdali Hajiabadi, P.A.Santa Ana, CA1285747964
- Jilbert Abnoosian, PALynwood, CA1447300314
- Reema Aboelrish, PA-CFresno, CA1376466144
- Sakina Abowath, P.A.Diamond Bar, CA1326287525
- Selin Abraamyan, PA-CGlendale, CA1144795899
- Antonious Abraham, PA-CCovina, CA1003434275
- Michelle AbrahamSacramento, CA1952875957
- Therese Abraham, P.A.-CGlendale, CA1063726586
Common questions
What is Kristen Barnum, PA's NPI number?
Kristen Barnum, PA's National Provider Identifier (NPI) is 1720856966, issued on Dec 18, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Kristen Barnum, PA located?
The NPPES record lists a practice address at 4358 Bonita RD Ste 400, Bonita, CA, 91902. Phone: (619) 695-1266. Providers update this record themselves, so call before visiting.
How can I verify Kristen Barnum, PA's license?
NPPES lists California license number PA66813, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Kristen Barnum, PA prescribe under Medicare Part D?
In 2024, Kristen Barnum, PA had 242 Medicare Part D claims for 158 beneficiaries; the average among medical physician assistant prescribers was 1,139. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.