NPPES file of Aug 9, 2026

Elizabeth Vassallo-Deluca, M.D.

Internal Medicine Physician · Oakland, CA

Elizabeth Vassallo-Deluca, M.D. is an internal medicine physician with a practice address in Oakland, California, and NPI 1134445885, issued on Apr 20, 2010. Check the license (California 125102, 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
1134445885
Name
Elizabeth Vassallo-Deluca
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
125102 CA
Self-reported in NPPES; status is on the state search
Practice location
3801 Howe St, Oakland, CA 94611
Phone
(510) 752-1190
Enumerated
Apr 20, 2010
Record last updated
Jan 10, 2022
Medicare enrollment
Enrolled (PECOS I20131112000149); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
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Also registered at 3801 Howe St

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

  1. Paula BaesslerPharmacist1407380520
  2. Deempal Bhatt, PHARM.DPharmacist1417393828
  3. Christopher Canlas, DOFamily Medicine Physician1477291615
  4. Runyu Chen, PHARM DAmbulatory Care Pharmacist1902213952
  5. Chi ChiangPharmacist1083149561
  6. Clara Chu, M.D.Family Medicine Physician1659798874

Verify Elizabeth Vassallo-Deluca in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 125102
    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.

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14% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,744 Medicare Part D claims for 381 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. 191 claims were for opioids.

  1. Elizabeth Vassallo-Deluca2,744
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium228 claims
  2. Hydrocodone-Acetaminophen142 claims
  3. Hydrochlorothiazide96 claims
  4. Levothyroxine Sodium80 claims
  5. Amlodipine Besylate76 claims
  6. Albuterol Sulfate Hfa75 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. Permanente Medical Group IncOakland, CA

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

Elizabeth Vassallo-Deluca among 17,696 internal medicine physician records in California

Elizabeth Vassallo-Deluca, M.D. 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 2010, is newer than 63% of them.

  • NPI issued2010 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2009 · median 2004 among the 11,065 with a school on file
  • Record last updated2022 · 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. Thomas Baudendistel, MDOakland, CA 946111801820436
  2. Rachel Canning, MDOakland, CA 946111386657609
  3. Howard Chang, MDOakland, CA 946111700845336
  4. Roopal Desai, MDOakland, CA 946111699861484
  5. Matthew Frankel, M.D., M.B.AOakland, CA 946111568542405
  6. Thomas Hackford, M.D.Oakland, CA 946111972598639
  7. Jacqueline Kiang, MDOakland, CA 946111376506600
  8. Katherine McLane, MDOakland, CA 946111447270186

Common questions

What is Elizabeth Vassallo-Deluca, M.D.'s NPI number?

Elizabeth Vassallo-Deluca, M.D.'s National Provider Identifier (NPI) is 1134445885, issued on Apr 20, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Vassallo-Deluca, M.D. located?

The NPPES record lists a practice address at 3801 Howe St, Oakland, CA, 94611. Phone: (510) 752-1190. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Vassallo-Deluca, M.D.'s license?

NPPES lists California license number 125102, 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 Elizabeth Vassallo-Deluca, M.D. prescribe under Medicare Part D?

In 2024, Elizabeth Vassallo-Deluca, M.D. had 2,744 Medicare Part D claims for 381 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.