Mark Medders
Medical Physician Assistant · Hayward, CA
Mark Medders is a medical physician assistant with a practice address in Hayward, California, and NPI 1952713711, issued on May 28, 2014. Check the license (California 11775, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Medders
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 11775 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27200 Calaroga Ave, Hayward, CA 94545
- Phone
- (510) 264-4046
- Enumerated
- May 28, 2014
- Record last updated
- May 28, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 27200 Calaroga Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yahya Ahmed, M.D.Internal Medicine Physician1124283312
- Neelima Akkinapalli, P.A.Physician Assistant1154523496
- Matthew Andrews, NPAcute Care Nurse Practitioner1699645424
- Yalda Bahrani, FNP-CNurse Practitioner1770182388
- Manon Baze, PAPhysician Assistant1104849520
- John Bell, M.D.Internal Medicine Physician1720282932
Verify Mark Medders in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 11775Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Medders among 3,376 medical physician assistant records in California
Mark Medders 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 not. Its NPI, issued in 2014, is newer than 58% of them.
- NPI issued2014 · 58% of these records are older, 38% newer
- In a Medicare fileNo · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- 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).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,376 in California → Every provider in Hayward → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Edward Caccioppo, P.A.Hayward, CA 945451992782635
- Mark ChanHayward, CA 945451740639442
- Claudia Heath, PA-CHayward, CA 945451275608507
- Isabel Papp, PAHayward, CA 945451063488591
- Casey HenningHayward, CA 945441487267779
- Marc Munoz, P.A.Castro Valley, CA 945461013186956
- Judy Nogales-Chapman, PA-CCastro Valley, CA 945461720075914
- Sandi Woo, PA-CCastro Valley, CA 945461225103161
Common questions
What is Mark Medders's NPI number?
Mark Medders's National Provider Identifier (NPI) is 1952713711, issued on May 28, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Mark Medders located?
The NPPES record lists a practice address at 27200 Calaroga Ave, Hayward, CA, 94545. Phone: (510) 264-4046. Providers update this record themselves, so call before visiting.
How can I verify Mark Medders's license?
NPPES lists California license number 11775, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.