Mark A. Marrama, MD
Internal Medicine Physician · Alameda, CA
Mark A. Marrama, MD is an internal medicine physician with a practice address in Alameda, California, and NPI 1700950318, issued on Nov 17, 2006. Check the license (California G50593, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark A. Marrama
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G50593 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2417 Central Ave, Alameda, CA 94501
- Phone
- (510) 749-5731
- Enumerated
- Nov 17, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00G505930 CA
- Medicare enrollment
- Enrolled (PECOS I20110203001140); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1982
- Entity
- Type 1 · individual
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Verify Mark A. Marrama in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50593Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
41 Medicare Part D claims for 33 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Adacel Tdap17 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
- Permanente Medical Group IncRichmond, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark A. Marrama among 17,696 internal medicine physician records in California
Mark A. Marrama, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1982 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 internal medicine physician records list a practice address in Alameda
They are 31 of the 2,492 NPPES records with a practice address in Alameda, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Alameda → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ernest Bonner, MDAlameda, CA 945011992785703
- Lorraine Bonner, M.D.Alameda, CA 945011033188149
- Jenna Brimmer, M.D.Alameda, CA 945011295703775
- Joanne Dephillips, M.D.Alameda, CA 945011538137963
- Robbin Green-Yeh, DOAlameda, CA 945011740290329
- Jagmohan Khaira, M.D.Alameda, CA 945011801864988
- James Kong, M.D.Alameda, CA 945011366426470
- Elpidio Magalong, M.D.Alameda, CA 945011992773279
Common questions
What is Mark A. Marrama, MD's NPI number?
Mark A. Marrama, MD's National Provider Identifier (NPI) is 1700950318, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Marrama, MD located?
The NPPES record lists a practice address at 2417 Central Ave, Alameda, CA, 94501. Phone: (510) 749-5731. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Marrama, MD's license?
NPPES lists California license number G50593, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark A. Marrama, MD prescribe under Medicare Part D?
In 2024, Mark A. Marrama, MD had 41 Medicare Part D claims for 33 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.