Walter P. Acuna, MD
Internal Medicine Physician · Oakland, CA
Walter P. Acuna, MD is an internal medicine physician with a practice address in Oakland, California, and NPI 1972655108, issued on Jan 17, 2007. Check the license (California A87756, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Walter P. Acuna
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A87756 CA
Self-reported in NPPES; status is on the state search - Practice location
- 275 W Macarthur Blvd, Oakland, CA 94611
- Phone
- (510) 752-1000
- Enumerated
- Jan 17, 2007
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A877560 CA
- Medicare enrollment
- Enrolled (PECOS I20051005000568); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 275 W Macarthur Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Walter P. Acuna in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A87756Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% more Medicare Part D claims than the average internal medicine physician in 2024
4,552 Medicare Part D claims for 495 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. 226 claims were for opioids.
Most prescribed
- Atorvastatin Calcium613 claims
- Amlodipine Besylate210 claims
- Tamsulosin Hcl167 claims
- Lisinopril157 claims
- Levothyroxine Sodium151 claims
- Losartan Potassium145 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 IncRichmond, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Walter P. Acuna among 17,696 internal medicine physician records in California
Walter P. Acuna, 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
- Graduated2002 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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).
432 internal medicine physician records list a practice address in Oakland
They are 432 of the 18,558 NPPES records with a practice address in Oakland, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Oakland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Baudendistel, MDOakland, CA 946111801820436
- Rachel Canning, MDOakland, CA 946111386657609
- Howard Chang, MDOakland, CA 946111700845336
- Roopal Desai, MDOakland, CA 946111699861484
- Matthew Frankel, M.D., M.B.AOakland, CA 946111568542405
- Thomas Hackford, M.D.Oakland, CA 946111972598639
- Jacqueline Kiang, MDOakland, CA 946111376506600
- Katherine McLane, MDOakland, CA 946111447270186
Common questions
What is Walter P. Acuna, MD's NPI number?
Walter P. Acuna, MD's National Provider Identifier (NPI) is 1972655108, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Walter P. Acuna, MD located?
The NPPES record lists a practice address at 275 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 752-1000. Providers update this record themselves, so call before visiting.
How can I verify Walter P. Acuna, MD's license?
NPPES lists California license number A87756, 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 Walter P. Acuna, MD prescribe under Medicare Part D?
In 2024, Walter P. Acuna, MD had 4,552 Medicare Part D claims for 495 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.