Sarah Ringsted, M.D.
NPI 1417376740 · Rheumatology Physician · South San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Ringsted, M.D. is a Rheumatology Physician provider in South San Francisco, CA (NPI 1417376740).
Provider details
- NPI number
- 1417376740
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PG187967 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 218 | 83 |
| Prednisone | 162 | 74 |
| Hydroxychloroquine Sulfate | 134 | 51 |
| Allopurinol | 90 | 30 |
| Colchicine | 37 | 22 |
| Leflunomide | 33 | 13 |
| Etanerceptbrand: Enbrel Sureclick | 32 | — |
Practice location
Mailing address
Additional practice locations (1)
- 2351 Clay StSuite 380San Francisco, CA 94115-1931Phone: (415) 600-3954
Registry dates
- Enumerated
- 2014-04-15
- Last updated
- 2021-12-17
- Certified
- 2020-07-02
Frequently asked questions
- What is Sarah Ringsted's NPI number?
- Sarah Ringsted's National Provider Identifier (NPI) is 1417376740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Ringsted's specialty?
- Sarah Ringsted is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Ringsted located?
- Sarah Ringsted's practice location on file with NPPES is 1200 El Camino Real, South San Francisco, CA 94080-3208.
- What is Sarah Ringsted's phone number?
- The practice phone number listed in the NPPES registry for Sarah Ringsted is (507) 422-2306.
- Does Sarah Ringsted accept Medicare?
- Sarah Ringsted is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Ringsted's NPI active?
- Yes — Sarah Ringsted's NPI (1417376740) is active in the NPPES registry as of the last update on 2021-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.