Robert William Shafer, M.D.
Infectious Disease Physician · Stanford, CA
Robert William Shafer, M.D. is an infectious disease physician with a practice address in Stanford, California, and NPI 1659494904, issued on Apr 9, 2007. Check the license (California G73311, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert William Shafer
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- G73311 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Apr 9, 2007
- Record last updated
- Apr 16, 2024
- Medicare enrollment
- Enrolled (PECOS I20210730001678); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
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- Mohamad Abbass, MDNeurological Surgery Physician1679492151
Verify Robert William Shafer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G73311Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Robert William Shafer among 1,119 infectious disease physician records in California
Robert William Shafer, M.D. is one of 1,119 infectious disease 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 46% of them.
- NPI issued2007 · 46% of these records are older, 41% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1983 · median 2003 among the 735 with a school on file
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 infectious disease physician records list a practice address in Stanford
They are 58 of the 5,606 NPPES records with a practice address in Stanford, and 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in Stanford → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Eran Bendavid, MDStanford, CA 943051144330069
- Brian Blackburn, MDStanford, CA 943051861542680
- Catherine Blish, MDStanford, CA 943051710067285
- Hector Bonilla, MDStanford, CA 943051225115371
- Philip Grant, MDStanford, CA 943051205949070
- Michael Harbour, MDStanford, CA 943051013022169
- Dora Ho, MDStanford, CA 943051619032224
- Shanthi Kappagoda, M.D.Stanford, CA 943051720195381
Common questions
What is Robert William Shafer, M.D.'s NPI number?
Robert William Shafer, M.D.'s National Provider Identifier (NPI) is 1659494904, issued on Apr 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robert William Shafer, M.D. located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Robert William Shafer, M.D.'s license?
NPPES lists California license number G73311, 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.
What is Robert William Shafer, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.