Elisabeth Ryzen, M.D.
NPI 1992745707 · Endocrinology, Diabetes & Metabolism Physician · Palo Alto, CA
Enrolled with Medicare as Order and Referring Only - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elisabeth Ryzen, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Palo Alto, CA (NPI 1992745707).
Provider details
- NPI number
- 1992745707
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- G42721 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-06-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Elisabeth Ryzen's NPI number?
- Elisabeth Ryzen's National Provider Identifier (NPI) is 1992745707, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elisabeth Ryzen's specialty?
- Elisabeth Ryzen is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Elisabeth Ryzen located?
- Elisabeth Ryzen's practice location on file with NPPES is 3801 Miranda Ave, Palo Alto, CA 94304-1207.
- What is Elisabeth Ryzen's phone number?
- The practice phone number listed in the NPPES registry for Elisabeth Ryzen is (650) 493-5000.
- Does Elisabeth Ryzen accept Medicare?
- Elisabeth Ryzen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elisabeth Ryzen's NPI active?
- Yes — Elisabeth Ryzen's NPI (1992745707) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.