Mary Ann Carol Carlos Besana, MD
Family Medicine Physician · Napa, CA
Mary Ann Carol Carlos Besana, MD is a family medicine physician with a practice address in Napa, California, and NPI 1700894540, issued on Aug 4, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary Ann Carol Carlos Besana
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 230393 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3285 Claremont Way, Napa, CA 94558
- Phone
- (707) 258-2166
- Enumerated
- Aug 4, 2006
- Record last updated
- Jan 24, 2022
- Medicaid ID
- 02527791 NY
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 3285 Claremont Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Ann Carol Carlos Besana 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
24% more Medicare Part D claims than the average family medicine physician in 2024
4,398 Medicare Part D claims for 506 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 151 claims were for opioids.
Most prescribed
- Atorvastatin Calcium347 claims
- Losartan Potassium279 claims
- Amlodipine Besylate278 claims
- Levothyroxine Sodium165 claims
- Atenolol129 claims
- Famotidine122 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.
Mary Ann Carol Carlos Besana among 17,133 family medicine physician records in California
Mary Ann Carol Carlos Besana, MD is one of 17,133 family 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 family medicine physician records list a practice address in Napa
They are 59 of the 3,583 NPPES records with a practice address in Napa, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Napa → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Aurelio Campos, MDNapa, CA 945581265446280
- Andrea Clarke, MDNapa, CA 945581598734709
- Alexandre De Moraes, M.D.Napa, CA 945581942284831
- Benjamin Jewell, MDNapa, CA 945581134134091
- Federico Leon, M.D.Napa, CA 945581659349173
- Maria Montenegro, M.D.Napa, CA 945581992719199
- Robert Moore, MDNapa, CA 945581538194899
- Michael Novak, MDNapa, CA 945581972501179
Common questions
What is Mary Ann Carol Carlos Besana, MD's NPI number?
Mary Ann Carol Carlos Besana, MD's National Provider Identifier (NPI) is 1700894540, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ann Carol Carlos Besana, MD located?
The NPPES record lists a practice address at 3285 Claremont Way, Napa, CA, 94558. Phone: (707) 258-2166. Providers update this record themselves, so call before visiting.
How can I verify Mary Ann Carol Carlos Besana, 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 Mary Ann Carol Carlos Besana, MD prescribe under Medicare Part D?
In 2024, Mary Ann Carol Carlos Besana, MD had 4,398 Medicare Part D claims for 506 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.