William Tontz, M.D.
NPI 1154398733 · Orthopaedic Surgery Physician · Yuma, AZ
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Tontz, M.D. is a Orthopaedic Surgery Physician provider in Yuma, AZ (NPI 1154398733).
Provider details
- NPI number
- 1154398733
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G41138 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service 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
- 2006-03-02
- Last updated
- 2015-07-24
Frequently asked questions
- What is William Tontz's NPI number?
- William Tontz's National Provider Identifier (NPI) is 1154398733, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Tontz's specialty?
- William Tontz is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Tontz located?
- William Tontz's practice location on file with NPPES is 1501 W 24th Street, Yuma, AZ 85364.
- What is William Tontz's phone number?
- The practice phone number listed in the NPPES registry for William Tontz is (928) 336-7846.
- Does William Tontz accept Medicare?
- William Tontz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Tontz's NPI active?
- Yes — William Tontz's NPI (1154398733) is active in the NPPES registry as of the last update on 2015-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.