William Mahon, M.D.
NPI 1184646259 · Pediatric Adolescent Medicine Physician · Fort Bragg, CA
William Mahon, M.D. is a Pediatric Adolescent Medicine Physician provider in Fort Bragg, CA (NPI 1184646259).
Provider details
- NPI number
- 1184646259
- Entity type
- Individual
- Primary specialty
- Pediatric Adolescent Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G30967 (CA)
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
19 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
- 2006-07-24
- Last updated
- 2012-02-15
Frequently asked questions
- What is William Mahon's NPI number?
- William Mahon's National Provider Identifier (NPI) is 1184646259, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mahon's specialty?
- William Mahon is listed in the NPPES registry with a primary specialty of Pediatric Adolescent Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Mahon located?
- William Mahon's practice location on file with NPPES is 510 Cypress St Ste D, Fort Bragg, CA 95437-5411.
- What is William Mahon's phone number?
- The practice phone number listed in the NPPES registry for William Mahon is (707) 964-5696.
- Is William Mahon's NPI active?
- Yes — William Mahon's NPI (1184646259) is active in the NPPES registry as of the last update on 2012-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.