Cassidy Mellin
NPI 1093211757 · Pediatrics Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassidy Mellin is a Pediatrics Physician provider in San Francisco, CA (NPI 1093211757).
Provider details
- NPI number
- 1093211757
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
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
8 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
- 2018-04-02
- Last updated
- 2022-07-18
- Certified
- 2022-07-18
Frequently asked questions
- What is Cassidy Mellin's NPI number?
- Cassidy Mellin's National Provider Identifier (NPI) is 1093211757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassidy Mellin's specialty?
- Cassidy Mellin is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Cassidy Mellin located?
- Cassidy Mellin's practice location on file with NPPES is 1975 4th St, San Francisco, CA 94143-2351.
- What is Cassidy Mellin's phone number?
- The practice phone number listed in the NPPES registry for Cassidy Mellin is (415) 476-9000.
- Does Cassidy Mellin accept Medicare?
- Cassidy Mellin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassidy Mellin's NPI active?
- Yes — Cassidy Mellin's NPI (1093211757) is active in the NPPES registry as of the last update on 2022-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.