Matthew J. Dillon, P.A.
Physician Assistant · Redwood City, CA
Matthew J. Dillon, P.A. is a physician assistant with a practice address in Redwood City, California, and NPI 1952349284, issued on Jun 2, 2006. Check the license (California PA14604, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Matthew J. Dillon
- Credential
- P.A.
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA14604 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2900 Whipple Ave, Redwood City, CA 94062
- Phone
- (650) 306-2300
- Enumerated
- Jun 2, 2006
- Record last updated
- Dec 11, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (650) 306-2336
- Medicaid ID
- 0PA146040 CA
- Medicare enrollment
- Enrolled (PECOS I20081204000523); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 2900 Whipple Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Barrett Bryan, MDInternal Medicine Physician1033133954
- Luis Castro, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1679587893
- Elaine Chien, MDObstetrics & Gynecology Physician1457423295
Verify Matthew J. Dillon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA14604Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% more Medicare Part D claims than the average physician assistant in 2024
1,095 Medicare Part D claims for 319 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Clopidogrel164 claims
- Eliquis144 claims
- Atorvastatin Calcium128 claims
- Metoprolol Succinate96 claims
- Rosuvastatin Calcium64 claims
- Furosemide50 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: $285.17
4 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. 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
- Sutter Bay Medical FoundationLos Altos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew J. Dillon among 14,451 physician assistant records in California
Matthew J. Dillon, P.A. 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1998 · median 2018 among the 7,214 with a school on file
- Record last updated2008 · 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).
38 physician assistant records list a practice address in Redwood City
They are 38 of the 2,795 NPPES records with a practice address in Redwood City, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Redwood City → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jose Aguilar Nieto, PA-CRedwood City, CA 940621043748288
- Katherine ChinnRedwood City, CA 940621144965567
- Marie GoldbergRedwood City, CA 940621164966842
- Andres Hernandez, PA-CRedwood City, CA 940621609588847
- Jessica Ho, PA-CRedwood City, CA 940621538730429
- Jacqueline HunterRedwood City, CA 940621538629712
- Donald Kemp, PA-CRedwood City, CA 940621861676777
- Ellin Li, PA-CRedwood City, CA 940621861050692
Common questions
What is Matthew J. Dillon, P.A.'s NPI number?
Matthew J. Dillon, P.A.'s National Provider Identifier (NPI) is 1952349284, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Matthew J. Dillon, P.A. located?
The NPPES record lists a practice address at 2900 Whipple Ave, Redwood City, CA, 94062. Phone: (650) 306-2300. Providers update this record themselves, so call before visiting.
How can I verify Matthew J. Dillon, P.A.'s license?
NPPES lists California license number PA14604, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Matthew J. Dillon, P.A. prescribe under Medicare Part D?
In 2024, Matthew J. Dillon, P.A. had 1,095 Medicare Part D claims for 319 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.