William Weiss, MD
NPI 1417022856 · Neurology with Special Qualifications in Child Neurology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Weiss, MD is a Neurology with Special Qualifications in Child Neurology Physician provider in San Francisco, CA (NPI 1417022856).
Provider details
- NPI number
- 1417022856
- Entity type
- Individual
- Primary specialty
- Neurology with Special Qualifications in Child Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G72677 (CA)
Specialties & taxonomies
- Neurology with Special Qualifications in Child Neurology PhysicianPrimary2084N0402XLicense G72677 (CA)
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
19 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)
- 1001 Potrero AveBldg. 5, 6mSan Francisco, CA 94110-3518Phone: (628) 206-8376
Registry dates
- Enumerated
- 2006-11-21
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is William Weiss's NPI number?
- William Weiss's National Provider Identifier (NPI) is 1417022856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Weiss's specialty?
- William Weiss is listed in the NPPES registry with a primary specialty of Neurology with Special Qualifications in Child Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is William Weiss located?
- William Weiss's practice location on file with NPPES is Neurology Univ of Ca, San Francisco, CA 94143-0001.
- What is William Weiss's phone number?
- The practice phone number listed in the NPPES registry for William Weiss is (415) 476-1000.
- Does William Weiss accept Medicare?
- William Weiss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Weiss's NPI active?
- Yes — William Weiss's NPI (1417022856) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.