Jeffrey Ni, MD
NPI 1639630114 · Pediatrics Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Ni, MD is a Pediatrics Physician provider in San Francisco, CA (NPI 1639630114).
Provider details
- NPI number
- 1639630114
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 125073610 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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.
Practice location
Mailing address
Additional practice locations (1)
- 5841 S Maryland Ave # Mc8016Chicago, IL 60637-1443Phone: (773) 702-9960
Registry dates
- Enumerated
- 2019-03-27
- Last updated
- 2025-06-20
- Certified
- 2025-06-20
Frequently asked questions
- What is Jeffrey Ni's NPI number?
- Jeffrey Ni's National Provider Identifier (NPI) is 1639630114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Ni's specialty?
- Jeffrey Ni is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Ni located?
- Jeffrey Ni's practice location on file with NPPES is 550 16th St Fl 4, San Francisco, CA 94158-2604.
- What is Jeffrey Ni's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Ni is (415) 353-7337.
- Does Jeffrey Ni accept Medicare?
- Jeffrey Ni is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Ni's NPI active?
- Yes — Jeffrey Ni's NPI (1639630114) is active in the NPPES registry as of the last update on 2025-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.