William Zaia, MD
NPI 1649362500 · Neonatal-Perinatal Medicine Physician · Marion, OH
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Zaia, MD is a Neonatal-Perinatal Medicine Physician provider in Marion, OH (NPI 1649362500).
Provider details
- NPI number
- 1649362500
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35057377 (OH)
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
- 2006-09-29
- Last updated
- 2026-02-06
- Certified
- 2026-02-06
Frequently asked questions
- What is William Zaia's NPI number?
- William Zaia's National Provider Identifier (NPI) is 1649362500, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Zaia's specialty?
- William Zaia is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Zaia located?
- William Zaia's practice location on file with NPPES is 1000 Mckinley Park Dr, Marion, OH 43302-6399.
- What is William Zaia's phone number?
- The practice phone number listed in the NPPES registry for William Zaia is (740) 383-8400.
- Does William Zaia accept Medicare?
- William Zaia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Zaia's NPI active?
- Yes — William Zaia's NPI (1649362500) is active in the NPPES registry as of the last update on 2026-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.