William Hartko, MD
NPI 1538273974 · Obstetrics & Gynecology Physician · Kendall Park, NJ
William Hartko, MD is a Obstetrics & Gynecology Physician provider in Kendall Park, NJ (NPI 1538273974).
Provider details
- NPI number
- 1538273974
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA03401000 (NJ)
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
- 2006-08-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Hartko's NPI number?
- William Hartko's National Provider Identifier (NPI) is 1538273974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hartko's specialty?
- William Hartko is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is William Hartko located?
- William Hartko's practice location on file with NPPES is 327 Route 27, Kendall Park, NJ 08824.
- What is William Hartko's phone number?
- The practice phone number listed in the NPPES registry for William Hartko is (732) 422-8989.
- Is William Hartko's NPI active?
- Yes — William Hartko's NPI (1538273974) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.