NPPES file of Aug 9, 2026

Giovanni Begossi, M.D.

Surgical Oncology Physician · Oakland, CA

Giovanni Begossi, M.D. is a surgical oncology physician with a practice address in Oakland, California, and NPI 1053460873, issued on Jan 10, 2007. Check the license (California 891220, 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
1053460873
Name
Giovanni Begossi
Credential
M.D.
Primary taxonomy
Surgical Oncology Physician 2086X0206X
License numbers
891220 CA
A112608 CA
Self-reported in NPPES; status is on the state search
Practice location
350 30TH St Ste 411, Oakland, CA 94609
Phone
(510) 204-8168
Enumerated
Jan 10, 2007
Record last updated
Jun 26, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(510) 506-7721
Medicare enrollment
Enrolled (PECOS I20101230000460); 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 350 30TH St Ste 411

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

  1. David Blumberg, MDSurgery Physician1295890440
  2. Robert Bober, MDCardiovascular Disease Physician1962469841
  3. Oleg Merzlikin, MDSurgery Physician1568760643
  4. Stephen Raskin, MDCardiovascular Disease Physician1730125980
  5. Michael Tsang, M.D.Cardiovascular Disease Physician1053335117
  6. Jalal Vargha, D.O.Cardiovascular Disease Physician1639599467

Verify Giovanni Begossi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 891220
    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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68% fewer Medicare Part D claims than the average surgical oncology physician in 2024

28 Medicare Part D claims for 15 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D.

  1. Giovanni Begossi28
  2. Specialty average87

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: $248.98

3 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,132 providers of this specialty with any payment received $4,224.74 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Giovanni Begossi$248.98
  2. Specialty average$4,224.74

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

  1. Sutter Bay Medical FoundationOakland, CA

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

Giovanni Begossi among 250 surgical oncology physician records in California

Giovanni Begossi, M.D. is one of 250 surgical oncology physician records with a practice address in California. 84% 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 36% of them.

  • NPI issued2007 · 36% of these records are older, 50% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1994 · median 2004 among the 184 with a school on file
  • Record last updated2020 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Oncology Physician providers in California

There are 250 surgical oncology physician records in California.

The 8 surgical oncology physician records with the nearest ZIP codes

  1. June Peng, MDWalnut Creek, CA 945981124321252
  2. Alexandra Moore, M.D.Vallejo, CA 945891902268253
  3. Pedro Ramirez, M.D.Saint Helena, CA 945741538274816
  4. Joanna Lee, M.D.Fremont, CA 945381235428475
  5. Weston Stover, MDTravis Afb, CA 945351366837353
  6. Jeffrey SternBerkeley, CA 947041447211784
  7. Jaikrishna Balkissoon, MDBerkeley, CA 947051508974056
  8. Carl Sutherland, MDSan Mateo, CA 944031679801609

Common questions

What is Giovanni Begossi, M.D.'s NPI number?

Giovanni Begossi, M.D.'s National Provider Identifier (NPI) is 1053460873, issued on Jan 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Giovanni Begossi, M.D. located?

The NPPES record lists a practice address at 350 30TH St Ste 411, Oakland, CA, 94609. Phone: (510) 204-8168. Providers update this record themselves, so call before visiting.

How can I verify Giovanni Begossi, M.D.'s license?

NPPES lists California license number 891220, 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 Giovanni Begossi, M.D. prescribe under Medicare Part D?

In 2024, Giovanni Begossi, M.D. had 28 Medicare Part D claims for 15 beneficiaries; the average among surgical oncology physician prescribers was 87. 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.