Ralph Zehler, PA-C
NPI 1972562643 · Physician Assistant · Mchenry, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ralph Zehler, PA-C is a Physician Assistant provider in Mchenry, IL (NPI 1972562643).
Provider details
- NPI number
- 1972562643
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 085006771 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-03-21
- Last updated
- 2023-01-30
- Certified
- 2023-01-30
Frequently asked questions
- What is Ralph Zehler's NPI number?
- Ralph Zehler's National Provider Identifier (NPI) is 1972562643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Zehler's specialty?
- Ralph Zehler is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ralph Zehler located?
- Ralph Zehler's practice location on file with NPPES is 4309 W Medical Center Dr Ste A200, Mchenry, IL 60050-8437.
- What is Ralph Zehler's phone number?
- The practice phone number listed in the NPPES registry for Ralph Zehler is (815) 759-8070.
- Does Ralph Zehler accept Medicare?
- Ralph Zehler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ralph Zehler's NPI active?
- Yes — Ralph Zehler's NPI (1972562643) is active in the NPPES registry as of the last update on 2023-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.