William Hieronimus, PT
NPI 1942337340 · Physical Medicine & Rehabilitation Physician · Toledo, OH
William Hieronimus, PT is a Physical Medicine & Rehabilitation Physician provider in Toledo, OH (NPI 1942337340).
Provider details
- NPI number
- 1942337340
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- PT
- Sex
- Male
- Sole proprietor
- No
- License
- PT011675 (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
- 2007-02-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Hieronimus's NPI number?
- William Hieronimus's National Provider Identifier (NPI) is 1942337340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hieronimus's specialty?
- William Hieronimus is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is William Hieronimus located?
- William Hieronimus's practice location on file with NPPES is 4126 Holland Sylvania Rd, Toledo, OH 43623.
- What is William Hieronimus's phone number?
- The practice phone number listed in the NPPES registry for William Hieronimus is (419) 720-0034.
- Is William Hieronimus's NPI active?
- Yes — William Hieronimus's NPI (1942337340) 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.