Jennifer L. Stewart, MD
Internal Medicine Physician · Mendocino, CA
Jennifer L. Stewart, MD is an internal medicine physician with a practice address in Mendocino, California, and NPI 1982749842, issued on Feb 20, 2007. Check the license (California A110366, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jennifer L. Stewart
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A110366 CA
44680 CO
MD154690 OR
Self-reported in NPPES; status is on the state search - Practice location
- 45081 Little Lake St, Mendocino, CA 95460
- Phone
- (707) 937-1022
- Enumerated
- Feb 20, 2007
- Record last updated
- Jun 20, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (707) 937-1061
- Medicaid IDs
- 76884350 CO
500638275 OR - Medicare enrollment
- Enrolled (PECOS I20100407000573); accepts Medicare assignment
- Medical or professional school
- University Of North Texas Hsc, College Of Osteopathic Med, 2004
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 45081 Little Lake St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sharon Hunter, NPNurse Practitioner1710919857
- Carla Stange, FNPFamily Nurse Practitioner1780769166
Verify Jennifer L. Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110366Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average internal medicine physician in 2024
5,939 Medicare Part D claims for 597 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 139 claims were for opioids.
Most prescribed
- Atorvastatin Calcium340 claims
- Levothyroxine Sodium313 claims
- Amlodipine Besylate215 claims
- Lisinopril207 claims
- Losartan Potassium189 claims
- Zolpidem Tartrate173 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): 73.8 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).
Industry payments in 2024: $76.64
4 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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.
One hospital affiliation
- Adventist Health Mendocino CoastFort Bragg, CA · Critical Access Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Jennifer L. Stewart among 17,696 internal medicine physician records in California
Jennifer L. Stewart, 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2004 · median 2004 among the 11,065 with a school on file
- Record last updated2019 · 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).
3 internal medicine physician records list a practice address in Mendocino
They are 3 of the 40 NPPES records with a practice address in Mendocino, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Mendocino → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jeffrey Berenson, MDMendocino, CA 954601902828619
- Frederick Dumas, M.D.Mendocino, CA 954601639268782
- Chin-Lung Chen, M.D.Lucerne, CA 954581851302319
- Clinton Thompson, M.D.Laytonville, CA 954541609105493
- Keith Arnold, MDLakeport, CA 954531750561379
- Harneet Bath, M.D.Lakeport, CA 954531679747760
- Bruce Deas, MDLakeport, CA 954531639189715
- Elyse Donald, M.D.Lakeport, CA 954531568487684
Common questions
What is Jennifer L. Stewart, MD's NPI number?
Jennifer L. Stewart, MD's National Provider Identifier (NPI) is 1982749842, issued on Feb 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer L. Stewart, MD located?
The NPPES record lists a practice address at 45081 Little Lake St, Mendocino, CA, 95460. Phone: (707) 937-1022. Providers update this record themselves, so call before visiting.
How can I verify Jennifer L. Stewart, MD's license?
NPPES lists California license number A110366, 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 Jennifer L. Stewart, MD prescribe under Medicare Part D?
In 2024, Jennifer L. Stewart, MD had 5,939 Medicare Part D claims for 597 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Jennifer L. Stewart, MD's MIPS final score?
The 2023 MIPS final score is 73.8 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.