NPPES file of Aug 9, 2026

Daveena Ma, MD

Internal Medicine Physician · Oakland, CA

Daveena Ma, MD is an internal medicine physician with a practice address in Oakland, California, and NPI 1629034368, issued on Apr 21, 2006. Check the license (California A84979, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629034368
Name
Daveena Ma
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A84979 CA
Self-reported in NPPES; status is on the state search
Practice location
818 Webster St, Oakland, CA 94607
Phone
(510) 986-6800
Enumerated
Apr 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(510) 986-6897
Medicaid ID
00A849790 CA
Medicare enrollment
Enrolled (PECOS I20081217000009); accepts Medicare assignment
Medical or professional school
New York University Medical College - Nlg, 2002
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 818 Webster St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christine Araneta, PAPhysician Assistant1780747238
  2. Gilbert Nolly ArcillaBehavior Technician1164046082
  3. Ivy CaiRegistered Nurse1982458915
  4. Yan CaiLicensed Vocational Nurse1477195717
  5. Clayton Chan, MDInternal Medicine Physician1972682037
  6. Florence ChanRegistered Nurse1649827593

Verify Daveena Ma in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A84979
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

94% more Medicare Part D claims than the average internal medicine physician in 2024

6,165 Medicare Part D claims for 338 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 34 claims were for opioids.

  1. Daveena Ma6,165
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium644 claims
  2. Amlodipine Besylate400 claims
  3. Metformin Hcl264 claims
  4. Alendronate Sodium240 claims
  5. Losartan Potassium219 claims
  6. Gabapentin206 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

  1. Asian Health ServicesOakland, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Daveena Ma among 17,696 internal medicine physician records in California

Daveena Ma, 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 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
  • Graduated2002 · median 2004 among the 11,065 with a school on file
  • Record last updated2007 · 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marilyn Ancel, MDOakland, CA 946071295813087
  2. Clayton Chan, MDOakland, CA 946071972682037
  3. Stewart Fong, MDOakland, CA 946071659459436
  4. Xiaoguang Huang, M.D., PHD.Oakland, CA 946071235179870
  5. Susan Mei Huang, MDOakland, CA 946071093894032
  6. Dennis Ing, MDOakland, CA 946071477631257
  7. Anthony Iton, M.D.Oakland, CA 946071609961101
  8. Nicola Longmuir, MDOakland, CA 946071710065511

Common questions

What is Daveena Ma, MD's NPI number?

Daveena Ma, MD's National Provider Identifier (NPI) is 1629034368, issued on Apr 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daveena Ma, MD located?

The NPPES record lists a practice address at 818 Webster St, Oakland, CA, 94607. Phone: (510) 986-6800. Providers update this record themselves, so call before visiting.

How can I verify Daveena Ma, MD's license?

NPPES lists California license number A84979, 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 Daveena Ma, MD prescribe under Medicare Part D?

In 2024, Daveena Ma, MD had 6,165 Medicare Part D claims for 338 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.