William Matloff
NPI 1033963418 · Internal Medicine Physician · Tucson, AZ
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Matloff is a Internal Medicine Physician provider in Tucson, AZ (NPI 1033963418).
Provider details
- NPI number
- 1033963418
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- R80823 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2024-04-12
- Last updated
- 2024-04-13
- Certified
- 2024-04-13
Frequently asked questions
- What is William Matloff's NPI number?
- William Matloff's National Provider Identifier (NPI) is 1033963418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Matloff's specialty?
- William Matloff is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Matloff located?
- William Matloff's practice location on file with NPPES is 2800 E Ajo Way Ste 100, Tucson, AZ 85713-6204.
- What is William Matloff's phone number?
- The practice phone number listed in the NPPES registry for William Matloff is (520) 874-2778.
- Does William Matloff accept Medicare?
- William Matloff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Matloff's NPI active?
- Yes — William Matloff's NPI (1033963418) is active in the NPPES registry as of the last update on 2024-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.