W. Siar, MD
NPI 1639174055 · Neonatal-Perinatal Medicine Physician · Du Bois, PA
W. Siar, MD is a Neonatal-Perinatal Medicine Physician provider in Du Bois, PA (NPI 1639174055).
Provider details
- NPI number
- 1639174055
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD029080L (PA)
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
21 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
- 2005-06-14
- Last updated
- 2025-09-11
Frequently asked questions
- What is W. Siar's NPI number?
- W. Siar's National Provider Identifier (NPI) is 1639174055, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is W. Siar's specialty?
- W. Siar is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is W. Siar located?
- W. Siar's practice location on file with NPPES is 635c Maple Ave, Du Bois, PA 15801-2377.
- What is W. Siar's phone number?
- The practice phone number listed in the NPPES registry for W. Siar is (814) 371-1771.
- Is W. Siar's NPI active?
- Yes — W. Siar's NPI (1639174055) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.