Mark Zarnke, M.D.
NPI 1295737948 · Surgery Physician · Rockford, IL
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Zarnke, M.D. is a Surgery Physician provider in Rockford, IL (NPI 1295737948).
Provider details
- NPI number
- 1295737948
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036078965 (IL)
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
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
- 2005-08-12
- Last updated
- 2009-12-02
Frequently asked questions
- What is Mark Zarnke's NPI number?
- Mark Zarnke's National Provider Identifier (NPI) is 1295737948, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Zarnke's specialty?
- Mark Zarnke is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Zarnke located?
- Mark Zarnke's practice location on file with NPPES is 2350 N Rockton Ave, Rockford, IL 61103-3600.
- What is Mark Zarnke's phone number?
- The practice phone number listed in the NPPES registry for Mark Zarnke is (815) 963-3426.
- Does Mark Zarnke accept Medicare?
- Mark Zarnke is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Zarnke's NPI active?
- Yes — Mark Zarnke's NPI (1295737948) is active in the NPPES registry as of the last update on 2009-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.