William Bercasio
NPI 1336016518 · Physical Therapist · San Francisco, CA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Bercasio is a Physical Therapist provider in San Francisco, CA (NPI 1336016518).
Provider details
- NPI number
- 1336016518
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 308838 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 23 Reed Blvd Ste 100Mill Valley, CA 94941-2370Phone: (415) 888-2289
- 1162b Gorgas AveSan Francisco, CA 94129-1406Phone: (415) 561-6655
Registry dates
- Enumerated
- 2025-10-21
- Last updated
- 2025-10-21
- Certified
- 2025-10-21
Frequently asked questions
- What is William Bercasio's NPI number?
- William Bercasio's National Provider Identifier (NPI) is 1336016518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Bercasio's specialty?
- William Bercasio is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is William Bercasio located?
- William Bercasio's practice location on file with NPPES is 40 Shrader St Apt 301, San Francisco, CA 94117-1083.
- What is William Bercasio's phone number?
- The practice phone number listed in the NPPES registry for William Bercasio is (510) 673-9455.
- Does William Bercasio accept Medicare?
- William Bercasio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Bercasio's NPI active?
- Yes — William Bercasio's NPI (1336016518) is active in the NPPES registry as of the last update on 2025-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.