Sarah Janssen, MD, PHD, MPH
NPI 1285714972 · Preventive Medicine/Occupational Environmental Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Janssen, MD, PHD, MPH is a Preventive Medicine/Occupational Environmental Medicine Physician provider in San Francisco, CA (NPI 1285714972).
Provider details
- NPI number
- 1285714972
- Entity type
- Individual
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD, MPH
- Sex
- Female
- Sole proprietor
- No
- License
- A84125 (CA)
Specialties & taxonomies
- Preventive Medicine/Occupational Environmental Medicine PhysicianPrimary2083P0500XLicense A84125 (CA)
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
- 2006-10-17
- Last updated
- 2021-12-13
Frequently asked questions
- What is Sarah Janssen's NPI number?
- Sarah Janssen's National Provider Identifier (NPI) is 1285714972, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Janssen's specialty?
- Sarah Janssen is listed in the NPPES registry with a primary specialty of Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Janssen located?
- Sarah Janssen's practice location on file with NPPES is 601 Van Ness Ave Ste 2008, San Francisco, CA 94102-6310.
- What is Sarah Janssen's phone number?
- The practice phone number listed in the NPPES registry for Sarah Janssen is (415) 833-2000.
- Does Sarah Janssen accept Medicare?
- Sarah Janssen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Janssen's NPI active?
- Yes — Sarah Janssen's NPI (1285714972) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.