William Haug, M.D.
NPI 1235115908 · Pediatrics Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Haug, M.D. is a Pediatrics Physician provider in Phoenix, AZ (NPI 1235115908).
Provider details
- NPI number
- 1235115908
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A80164 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
- 2005-12-15
- Last updated
- 2026-05-21
- Certified
- 2026-05-21
Frequently asked questions
- What is William Haug's NPI number?
- William Haug's National Provider Identifier (NPI) is 1235115908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Haug's specialty?
- William Haug is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is William Haug located?
- William Haug's practice location on file with NPPES is 4212 N 16th St, Phoenix, AZ 85016-5319.
- What is William Haug's phone number?
- The practice phone number listed in the NPPES registry for William Haug is (602) 263-1200.
- Does William Haug accept Medicare?
- William Haug is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Haug's NPI active?
- Yes — William Haug's NPI (1235115908) is active in the NPPES registry as of the last update on 2026-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.