NPPES file of Aug 9, 2026

Gina Serraiocco, MD

Internal Medicine Physician · Los Altos, CA

Gina Serraiocco, MD is an internal medicine physician with a practice address in Los Altos, California, and NPI 1063504553, issued on Sep 29, 2006. Check the license (California A80773, 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
1063504553
Name
Gina Serraiocco
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A80773 CA
Self-reported in NPPES; status is on the state search
Practice location
370 Distel Cir, Los Altos, CA 94022
Phone
(650) 254-5200
Enumerated
Sep 29, 2006
Record last updated
Jul 15, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040409000358); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2001
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 370 Distel Cir

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

  1. Tinuola Ademola, MDInternal Medicine Physician1437472974
  2. Gunjan Agrawal, MBBS, DCH, MPHPediatrics Physician1588306922
  3. Kathleen Babington, MDPediatrics Physician1366474645
  4. Maria-Pilar Bernal, MDChild & Adolescent Psychiatry Physician1649356155
  5. Bhanu-Rekha Bhaskar, MDInternal Medicine Physician1932273539
  6. Aimee Blaustein, MDPediatrics Physician1184717233

Verify Gina Serraiocco in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A80773
    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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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

159 Medicare Part D claims for 46 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Gina Serraiocco159
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium25 claims
  2. Gabapentin11 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. Sutter Bay Medical FoundationSan Mateo, CA

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

Gina Serraiocco among 17,696 internal medicine physician records in California

Gina Serraiocco, 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
  • Graduated2001 · median 2004 among the 11,065 with a school on file
  • Record last updated2020 · 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).

29 internal medicine physician records list a practice address in Los Altos

They are 29 of the 718 NPPES records with a practice address in Los Altos, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Bhanu-Rekha Bhaskar, MDLos Altos, CA 940221932273539
  2. Jacqueline Denkabe, MDLos Altos, CA 940221194883520
  3. Jessica Favreau, MDLos Altos, CA 940221841450731
  4. Julia Fong, MDLos Altos, CA 940221154409746
  5. Francis Lastufka, MDLos Altos, CA 940221144312141
  6. Janusz Madej, M.D.Los Altos, CA 940221376616706
  7. Carrie Mousseau, M.D.Los Altos, CA 940221447387451
  8. Amy Muzaffar, MDLos Altos, CA 940221124191481

Common questions

What is Gina Serraiocco, MD's NPI number?

Gina Serraiocco, MD's National Provider Identifier (NPI) is 1063504553, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gina Serraiocco, MD located?

The NPPES record lists a practice address at 370 Distel Cir, Los Altos, CA, 94022. Phone: (650) 254-5200. Providers update this record themselves, so call before visiting.

How can I verify Gina Serraiocco, MD's license?

NPPES lists California license number A80773, 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 Gina Serraiocco, MD prescribe under Medicare Part D?

In 2024, Gina Serraiocco, MD had 159 Medicare Part D claims for 46 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.