Naomi Victoria Marks, M.D.
Emergency Medicine Physician · Oakland, CA
Naomi Victoria Marks, M.D. is an emergency medicine physician with a practice address in Oakland, California, and NPI 1952547937, issued on Dec 23, 2008. Check the license (California A101323, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Naomi Victoria Marks
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A101323 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1411 E. 31St St., Oakland, CA 94602
- Phone
- (510) 437-4800
- Enumerated
- Dec 23, 2008
- Record last updated
- Dec 23, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100128000808); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1411 E. 31St St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathia Gonzalez-Gallo, MDStudent in an Organized Health Care Education/Training Program1316642812
Verify Naomi Victoria Marks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101323Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average emergency medicine physician in 2024
320 Medicare Part D claims for 235 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 55 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen51 claims
- Cefadroxil28 claims
- Cefpodoxime Proxetil26 claims
- Amoxicillin-Clavulanate Potass17 claims
- Ondansetron Odt17 claims
- Azithromycin14 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Permanente Medical Group IncSan Rafael, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Naomi Victoria Marks among 7,751 emergency medicine physician records in California
Naomi Victoria Marks, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2006 · median 2011 among the 4,560 with a school on file
- Record last updated2008 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
247 emergency medicine physician records list a practice address in Oakland
They are 247 of the 18,558 NPPES records with a practice address in Oakland, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Oakland → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- David English, MDOakland, CA 946021275514325
- Bradley Frazee, MDOakland, CA 946021447241765
- Jocelyn Freeman, MDOakland, CA 946021194716498
- Jared Greenholz, MDOakland, CA 946021417930520
- Cherie Hargis, MDOakland, CA 946021821079377
- Abraha Kidane, PAOakland, CA 946021942291265
- Stephen Miller, MDOakland, CA 946021750363727
- Andrew Nothmann, MDOakland, CA 946021518949585
Common questions
What is Naomi Victoria Marks, M.D.'s NPI number?
Naomi Victoria Marks, M.D.'s National Provider Identifier (NPI) is 1952547937, issued on Dec 23, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Naomi Victoria Marks, M.D. located?
The NPPES record lists a practice address at 1411 E. 31St St., Oakland, CA, 94602. Phone: (510) 437-4800. Providers update this record themselves, so call before visiting.
How can I verify Naomi Victoria Marks, M.D.'s license?
NPPES lists California license number A101323, 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 Naomi Victoria Marks, M.D. prescribe under Medicare Part D?
In 2024, Naomi Victoria Marks, M.D. had 320 Medicare Part D claims for 235 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Naomi Victoria Marks, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.