William Schiff, OD
NPI 1376509810 · Optometrist · Phoenix, AZ
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Schiff, OD is a Optometrist provider in Phoenix, AZ (NPI 1376509810).
Provider details
- NPI number
- 1376509810
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- OPT-000875 (AZ)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2006-04-25
- Last updated
- 2020-01-30
- Certified
- 2020-01-30
Frequently asked questions
- What is William Schiff's NPI number?
- William Schiff's National Provider Identifier (NPI) is 1376509810, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Schiff's specialty?
- William Schiff is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is William Schiff located?
- William Schiff's practice location on file with NPPES is 4800 N 22nd St, Phoenix, AZ 85016-4701.
- What is William Schiff's phone number?
- The practice phone number listed in the NPPES registry for William Schiff is (602) 955-1000.
- Does William Schiff accept Medicare?
- William Schiff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Schiff's NPI active?
- Yes — William Schiff's NPI (1376509810) is active in the NPPES registry as of the last update on 2020-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.