Marie Ann Russell, MD.
Internal Medicine Physician · San Marcos, CA
Marie Ann Russell, MD. is an internal medicine physician with a practice address in San Marcos, California, and NPI 1609947449, issued on Nov 13, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marie Ann Russell
- Credential
- MD.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 28355 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 150 Valpreda RD, San Marcos, CA 92069
- Phone
- (760) 736-8689
- Enumerated
- Nov 13, 2006
- Record last updated
- Apr 11, 2022
- Medicaid ID
- 634685 AZ
- Medicare enrollment
- Enrolled (PECOS I20100322000599); accepts Medicare assignment
- Medical or professional school
- Uniformed Services Uhs Fe Hebert School Of Med, 1998
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 150 Valpreda RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Blanca Arias, LCSWClinical Social Worker1033223649
- Lynda Ariella, PHDClinical Psychologist1073518965
- Maria BanuelosCase Manager/Care Coordinator1720280589
Verify Marie Ann Russell 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
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
265 Medicare Part D claims for 26 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium22 claims
- Fluticasone Propionate18 claims
- Lisinopril15 claims
- Hydrochlorothiazide11 claims
- Ibuprofen11 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: $34.13
2 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- North County Health Project, Inc.San Marcos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marie Ann Russell among 17,696 internal medicine physician records in California
Marie Ann Russell, 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
- Graduated1998 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 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).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Marcos → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shreya Chandra, MDSan Marcos, CA 920691972519825
- Lauren Jefferis, MDSan Marcos, CA 920691346354776
- Samuel Poniachik, M.DSan Marcos, CA 920691467485078
- Arturo Tolentino, M.D.San Marcos, CA 920691609066018
- Izabela Witczak, M.DSan Marcos, CA 920691184735201
- Abbas Ali, M.DSantee, CA 920711104200112
- Azzah Arikat, MDSantee, CA 920711184971640
- David Corbin, MDSantee, CA 920711275627200
Common questions
What is Marie Ann Russell, MD.'s NPI number?
Marie Ann Russell, MD.'s National Provider Identifier (NPI) is 1609947449, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marie Ann Russell, MD. located?
The NPPES record lists a practice address at 150 Valpreda RD, San Marcos, CA, 92069. Phone: (760) 736-8689. Providers update this record themselves, so call before visiting.
How can I verify Marie Ann Russell, MD.'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 Marie Ann Russell, MD. prescribe under Medicare Part D?
In 2024, Marie Ann Russell, MD. had 265 Medicare Part D claims for 26 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.