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DR. WILLIAM WEISS MD
NPI 1417022856
Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology in San Francisco, CA

Active since November 21, 2006PECOS Enrolled
NEUROLOGY UNIV OF CA, 533 PARNASSUS AVE, ROOM U441K, SAN FRANCISCO, CA 94143(415) 476-1000 Get Directions Write a Review

NPPES record last updated: April 29, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. William Weiss Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM WEISS MD (NPI 1417022856) is an individual neurology with special qualifications in child neurology provider in San Francisco, California, licensed in California (G72677) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1417022856
Entity TypeIndividualMale
Primary Taxonomy2084N0402X
Provider Legal NameDR. WILLIAM WEISSCredential: MD
Location AddressNEUROLOGY UNIV OF CA, 533 PARNASSUS AVE, ROOM U441KSan Francisco, CA 94143-0001
Mailing Address1450 Third St, Neurology Univ Of Ca, Room Hd277San Francisco, CA 94158-9001
Phone(415) 476-1000
Sole ProprietorNo
Enumeration DateNovember 21, 2006
Last NPPES UpdateApril 29, 2026
NPPES CertifiedApril 29, 2026
✔ NPI 1417022856 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Neurology with Special Qualifications in Child NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0402X
License✔ Licensed in CA · G72677
Definition
A Child Neurologist specializes in neurology with special skills in diagnosis and treatment of neurologic disorders of the neonatal period, infancy, early childhood, and adolescence.
Also ListedPediatricsTaxonomy 208000000X · License G72677 (CA)
NEUROLOGY UNIV OF CA, San Francisco, CA 94143
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Weiss Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Weiss's NPI number?

The NPI number for William Weiss is 1417022856. It was assigned to this individual provider in the NPPES registry on November 21, 2006.

Where is William Weiss located?

William Weiss practices at Neurology Univ Of Ca 533 Parnassus Ave, Room U441k, San Francisco, CA 94143. The listed phone number is (415) 476-1000.

What is William Weiss's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology with Special Qualifications in Child Neurology, with taxonomy code 2084N0402X.

Is William Weiss enrolled in Medicare?

Yes. William Weiss is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Weiss was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.