James Holzberger, MD
NPI 1417062936 · Ophthalmology Physician · Marshfield, WI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Holzberger, MD is a Ophthalmology Physician provider in Marshfield, WI (NPI 1417062936).
Provider details
- NPI number
- 1417062936
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 29208 (WI)
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
- 2006-08-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Holzberger's NPI number?
- James Holzberger's National Provider Identifier (NPI) is 1417062936, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Holzberger's specialty?
- James Holzberger is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is James Holzberger located?
- James Holzberger's practice location on file with NPPES is 1000 N Oak Ave, Marshfield, WI 54449.
- What is James Holzberger's phone number?
- The practice phone number listed in the NPPES registry for James Holzberger is (715) 221-7572.
- Does James Holzberger accept Medicare?
- James Holzberger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Holzberger's NPI active?
- Yes — James Holzberger's NPI (1417062936) 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.