Robert Shafer, M.D.
NPI 1659494904 · Infectious Disease Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Shafer, M.D. is a Infectious Disease Physician provider in Stanford, CA (NPI 1659494904).
Provider details
- NPI number
- 1659494904
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G73311 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-09
- Last updated
- 2024-04-16
- Certified
- 2024-04-16
Frequently asked questions
- What is Robert Shafer's NPI number?
- Robert Shafer's National Provider Identifier (NPI) is 1659494904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Shafer's specialty?
- Robert Shafer is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Shafer located?
- Robert Shafer's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Robert Shafer's phone number?
- The practice phone number listed in the NPPES registry for Robert Shafer is (650) 723-4000.
- Does Robert Shafer accept Medicare?
- Robert Shafer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Shafer's NPI active?
- Yes — Robert Shafer's NPI (1659494904) is active in the NPPES registry as of the last update on 2024-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.