Jennifer Marks
Internal Medicine Physician · Los Angeles, CA
Jennifer Marks is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1033288667, issued on Nov 7, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer Marks
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 1520 San Pablo St, Los Angeles, CA 90033
- Phone
- (323) 442-5100
- Enumerated
- Nov 7, 2006
- Entity
- Type 1 · individual
Also registered at 1520 San Pablo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Acosta, PHDPsychologist1750313490
- Gbemisola Adenuga, M.D.Nephrology Physician1952464661
- Aimee Aguillon, OTR/L, CHTOccupational Therapist1972677318
- Haig Aharonian, M.D.Internal Medicine Physician1205107653
- Jamshid Ahmadi, M.D.Neuroradiology Physician1942252028
- Mohammad Akmal, M.D.Nephrology Physician1356378087
Verify Jennifer Marks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
925 Medicare Part D claims for 173 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 43 claims were for opioids.
Most prescribed
- Atorvastatin Calcium71 claims
- Amlodipine Besylate61 claims
- Losartan Potassium53 claims
- Levothyroxine Sodium38 claims
- Metformin Hcl31 claims
- Alendronate Sodium27 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: $129.13
1 payment, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 65,274 providers of this specialty with any payment received $2,536.66 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.
One hospital or facility affiliation
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
1,665 internal medicine physician records list a Los Angeles practice address
They are 1,665 of the 69,537 NPPES records with a Los Angeles practice address, and 20,403 internal medicine physician records in California.
All 1,665 in Los Angeles → All 20,403 in California → Every provider in Los Angeles →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Jennifer Marks's NPI number?
Jennifer Marks's National Provider Identifier (NPI) is 1033288667, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Marks located?
The NPPES record lists a practice address at 1520 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-5100. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Marks's license?
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 Jennifer Marks prescribe under Medicare Part D?
In 2024, Jennifer Marks had 925 Medicare Part D claims for 173 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.