Brian Paul Whitaker, PA
Physician Assistant · Palo Alto, CA
Brian Paul Whitaker, PA is a physician assistant with a practice address in Palo Alto, California, and NPI 1720463649, issued on Jul 21, 2015. Check the license (California 55166, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Brian Paul Whitaker
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 55166 CA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 497-8000
- Enumerated
- Jul 21, 2015
- Record last updated
- May 12, 2025
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 725 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shayda Abadi, NPNurse Practitioner1316745540
- Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
- Alexandra Abbott, MDPediatrics Physician1760018675
- Steven Abboud, MDAnesthesiology Physician1619364908
- Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
- Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235
Verify Brian Paul Whitaker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 55166Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average physician assistant in 2024
222 Medicare Part D claims for 167 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Cephalexin25 claims
- Amoxicillin-Clavulanate Potass23 claims
- Prednisone20 claims
- Azithromycin19 claims
- Albuterol Sulfate Hfa13 claims
- Cefdinir11 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.
Brian Paul Whitaker among 14,451 physician assistant records in California
Brian Paul Whitaker, PA 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 2015, is newer than 41% of them.
- NPI issued2015 · 41% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- 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).
155 physician assistant records list a practice address in Palo Alto
They are 155 of the 7,617 NPPES records with a practice address in Palo Alto, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Palo Alto → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Tracy Berggren, PA-CPalo Alto, CA 943041407018468
- Camille Bloom, PA-CPalo Alto, CA 943041558670588
- Emily Dong, PA-CPalo Alto, CA 943041376853622
- Rosanna Duester, PA-CPalo Alto, CA 943041225280159
- Erin Frawley, PAPalo Alto, CA 943041942452149
- Jacqueline Julty, PA-CPalo Alto, CA 943041184759649
- Clair Kuriakose, PAPalo Alto, CA 943041710141718
- Lynn Maestretti, PA-CPalo Alto, CA 943041710150024
Common questions
What is Brian Paul Whitaker, PA's NPI number?
Brian Paul Whitaker, PA's National Provider Identifier (NPI) is 1720463649, issued on Jul 21, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Brian Paul Whitaker, PA located?
The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.
How can I verify Brian Paul Whitaker, PA's license?
NPPES lists California license number 55166, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Brian Paul Whitaker, PA prescribe under Medicare Part D?
In 2024, Brian Paul Whitaker, PA had 222 Medicare Part D claims for 167 beneficiaries; the average among physician assistant prescribers was 830. 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.