Cynthia Chalk
NPI 1124606900 · Hospitalist Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Chalk is a Hospitalist Physician provider in San Francisco, CA (NPI 1124606900).
Provider details
- NPI number
- 1124606900
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
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
5 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2021-03-31
- Last updated
- 2025-01-30
- Certified
- 2025-01-30
Frequently asked questions
- What is Cynthia Chalk's NPI number?
- Cynthia Chalk's National Provider Identifier (NPI) is 1124606900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Chalk's specialty?
- Cynthia Chalk is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Cynthia Chalk located?
- Cynthia Chalk's practice location on file with NPPES is 2425 Geary Blvd, San Francisco, CA 94115-3358.
- What is Cynthia Chalk's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Chalk is (415) 833-2000.
- Does Cynthia Chalk accept Medicare?
- Cynthia Chalk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Chalk's NPI active?
- Yes — Cynthia Chalk's NPI (1124606900) is active in the NPPES registry as of the last update on 2025-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.