Brent Christopher Marks, PA-C
Medical Physician Assistant · Watsonville, CA
Brent Christopher Marks, PA-C is a medical physician assistant with a practice address in Watsonville, California, and NPI 1740598275, issued on Sep 17, 2010. Check the license (California PA21097, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Brent Christopher Marks
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA21097 CA
Self-reported in NPPES; status is on the state search - Practice location
- 75 Neilson St, Watsonville, CA 95076
- Phone
- (831) 761-5613
- Enumerated
- Sep 17, 2010
- Record last updated
- Mar 14, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110215000111); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 75 Neilson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Vit Kraushaar, M.D.Emergency Medicine Physician1932497914
Verify Brent Christopher Marks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA21097Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average medical physician assistant in 2024
96 Medicare Part D claims for 73 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Cephalexin16 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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSanta Cruez, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brent Christopher Marks among 3,376 medical physician assistant records in California
Brent Christopher Marks, PA-C 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 2010, is newer than 42% of them.
- NPI issued2010 · 42% of these records are older, 54% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2010 · median 2012 among the 1,347 with a school on file
- 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).
15 medical physician assistant records list a practice address in Watsonville
They are 15 of the 1,044 NPPES records with a practice address in Watsonville, and 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Watsonville → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Cathleen Chandler-EckhardtWatsonville, CA 950761265681977
- Olivia Guzman, PA-CWatsonville, CA 950761326275587
- Daniel Johnson, PA-C, L.AC.Watsonville, CA 950761508151572
- Alejandra Leliaert, PA-C (PHYSICIAN ASSIWatsonville, CA 950761508205691
- Paul Lewandowski, PAWatsonville, CA 950761013934553
- Hugo Mar, PAWatsonville, CA 950761942524897
- Erica Navarro, PA-CWatsonville, CA 950761841609799
- Ashley Neway, PA-CWatsonville, CA 950761093023343
Common questions
What is Brent Christopher Marks, PA-C's NPI number?
Brent Christopher Marks, PA-C's National Provider Identifier (NPI) is 1740598275, issued on Sep 17, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Brent Christopher Marks, PA-C located?
The NPPES record lists a practice address at 75 Neilson St, Watsonville, CA, 95076. Phone: (831) 761-5613. Providers update this record themselves, so call before visiting.
How can I verify Brent Christopher Marks, PA-C's license?
NPPES lists California license number PA21097, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Brent Christopher Marks, PA-C prescribe under Medicare Part D?
In 2024, Brent Christopher Marks, PA-C had 96 Medicare Part D claims for 73 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.