Michael Bunuan, DO
Internal Medicine Physician · Sacramento, CA
Michael Bunuan, DO is an internal medicine physician with a practice address in Sacramento, California, and NPI 1538249495, issued on Oct 16, 2006. Check the license (California 20A9672, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Bunuan
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 20A9672 CA
2049642 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1020 29TH St Ste 480, Sacramento, CA 95816
- Phone
- (916) 733-3777
- Enumerated
- Oct 16, 2006
- Record last updated
- Jul 11, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (916) 454-6780
- Medicare enrollment
- Enrolled (PECOS I20080122000770); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2003
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1020 29TH St Ste 480
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Bunuan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9672Check 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
249 Medicare Part D claims for 105 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Eliquis16 claims
- Prednisone13 claims
- Metoprolol Succinate11 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: $381.99
3 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). 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
- Sutter Valley Medical FoundationSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Bunuan among 17,696 internal medicine physician records in California
Michael Bunuan, DO 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
- Graduated2003 · median 2004 among the 11,065 with a school on file
- Record last updated2018 · 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).
601 internal medicine physician records list a practice address in Sacramento
They are 601 of the 33,083 NPPES records with a practice address in Sacramento, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sacramento → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michael Abate, MDSacramento, CA 958161548248131
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- Lisa Ho, M.D.Sacramento, CA 958161932184108
- John Hosoume, M.D.Sacramento, CA 958161588649354
- James Jackson, MDSacramento, CA 958161508855594
- Ingvild Lane, MDSacramento, CA 958161831171719
- Scott Macdonald, MDSacramento, CA 958161518940006
Common questions
What is Michael Bunuan, DO's NPI number?
Michael Bunuan, DO's National Provider Identifier (NPI) is 1538249495, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Bunuan, DO located?
The NPPES record lists a practice address at 1020 29TH St Ste 480, Sacramento, CA, 95816. Phone: (916) 733-3777. Providers update this record themselves, so call before visiting.
How can I verify Michael Bunuan, DO's license?
NPPES lists California license number 20A9672, 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 Michael Bunuan, DO prescribe under Medicare Part D?
In 2024, Michael Bunuan, DO had 249 Medicare Part D claims for 105 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.