Michelle A. Barbosa, D.O.
Internal Medicine Physician · Merced, CA
Michelle A. Barbosa, D.O. is an internal medicine physician with a practice address in Merced, California, and NPI 1306182464, issued on Dec 18, 2012. Check the license (California 20A12299, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michelle A. Barbosa
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A12299 CA
Self-reported in NPPES; status is on the state search - Practice location
- 315 Mercy Ave, Merced, CA 95340
- Phone
- (209) 564-3500
- Enumerated
- Dec 18, 2012
- Record last updated
- Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130204000499); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 315 Mercy Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hargurbir AlhuwaliaStudent in an Organized Health Care Education/Training Program1891554978
- Austin Bowden, DOStudent in an Organized Health Care Education/Training Program1568159028
- Yang CaoStudent in an Organized Health Care Education/Training Program1912357567
- Kin-Chung Chan, MDNeurology Physician1639284904
- Alex Chin, D.O.Student in an Organized Health Care Education/Training Program1952834947
- Christina Co, MDStudent in an Organized Health Care Education/Training Program1194412908
Verify Michelle A. Barbosa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A12299Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average internal medicine physician in 2024
3,519 Medicare Part D claims for 465 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 137 claims were for opioids.
Most prescribed
- Atorvastatin Calcium339 claims
- Lisinopril186 claims
- Amlodipine Besylate160 claims
- Levothyroxine Sodium155 claims
- Losartan Potassium135 claims
- Fluticasone Propionate87 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.
Bills Medicare through one group practice
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
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 Michelle A. Barbosa, D.O.'s NPI number?
Michelle A. Barbosa, D.O.'s National Provider Identifier (NPI) is 1306182464, issued on Dec 18, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Michelle A. Barbosa, D.O. located?
The NPPES record lists a practice address at 315 Mercy Ave, Merced, CA, 95340. Phone: (209) 564-3500. Providers update this record themselves, so call before visiting.
How can I verify Michelle A. Barbosa, D.O.'s license?
NPPES lists California license number 20A12299, 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 Michelle A. Barbosa, D.O. prescribe under Medicare Part D?
In 2024, Michelle A. Barbosa, D.O. had 3,519 Medicare Part D claims for 465 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.