Mason Lee Donnell, PHD, PA
Physician Assistant · San Rafael, CA
Mason Lee Donnell, PHD, PA is a physician assistant with a practice address in San Rafael, California, and NPI 1891417390, issued on Sep 13, 2022. Check the license (California 62685, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mason Lee Donnell
- Credential
- PHD, PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 62685 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4000 Civic Center Dr, San Rafael, CA 94903
- Phone
- (415) 492-3333
- Enumerated
- Sep 13, 2022
- Record last updated
- Mar 7, 2026
- Entity
- Type 1 · individual
Also registered at 4000 Civic Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Call, RBTBehavior Analyst1558955682
- Morgan Camp, MDEmergency Medicine Physician1407845738
- Cynthia Clark, MDEmergency Medicine Physician1144219767
- Eugenia Clark, M.A. ED., BCBABehavior Analyst1811597537
- Estefany GutierrezBehavior Technician1063098135
- Kurt Kunzel, MDEmergency Medicine Physician1073502696
Verify Mason Lee Donnell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 62685Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average physician assistant in 2024
1,238 Medicare Part D claims for 200 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 48 claims were for opioids.
Most prescribed
- Atorvastatin Calcium73 claims
- Gabapentin57 claims
- Losartan Potassium55 claims
- Albuterol Sulfate Hfa35 claims
- Amlodipine Besylate33 claims
- Symbicort31 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.
44 physician assistant records list a practice address in San Rafael
They are 44 of the 3,159 NPPES records with a practice address in San Rafael, and 14,451 physician assistant records in California.
All 44 in San Rafael → All 14,451 in California → Every provider in San Rafael →
Other physician assistant records in California
- Marcia -Galbraith, PAStockton, CA1407143274
- Danny Abad, PAOrange, CA1477158673
- Lea Dominique Abadies, PATustin, CA1124754254
- Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
- Ramina Abbasi, PA-CSignal Hill, CA1093448300
- Ariel Abbott, PA-CStockton, CA1780334342
- Barrie Abbott, PA-CAnza, CA1861602575
- Elizabeth Abbott, PA-CSan Diego, CA1437540762
- Terri Abbott, P.A.La Jolla, CA1811165566
- Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
Common questions
What is Mason Lee Donnell, PHD, PA's NPI number?
Mason Lee Donnell, PHD, PA's National Provider Identifier (NPI) is 1891417390, issued on Sep 13, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mason Lee Donnell, PHD, PA located?
The NPPES record lists a practice address at 4000 Civic Center Dr, San Rafael, CA, 94903. Phone: (415) 492-3333. Providers update this record themselves, so call before visiting.
How can I verify Mason Lee Donnell, PHD, PA's license?
NPPES lists California license number 62685, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mason Lee Donnell, PHD, PA prescribe under Medicare Part D?
In 2024, Mason Lee Donnell, PHD, PA had 1,238 Medicare Part D claims for 200 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.