Joseph Marik, MD
NPI 1710969860 · Internal Medicine Physician · Fond Du Lac, WI
Joseph Marik, MD is a Internal Medicine Physician provider in Fond Du Lac, WI (NPI 1710969860).
Provider details
- NPI number
- 1710969860
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 33089 (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
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
- 2005-11-15
- Last updated
- 2016-03-02
Frequently asked questions
- What is Joseph Marik's NPI number?
- Joseph Marik's National Provider Identifier (NPI) is 1710969860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Marik's specialty?
- Joseph Marik is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Marik located?
- Joseph Marik's practice location on file with NPPES is 420 E Division St, Fond Du Lac, WI 54935-4560.
- What is Joseph Marik's phone number?
- The practice phone number listed in the NPPES registry for Joseph Marik is (920) 926-8420.
- Is Joseph Marik's NPI active?
- Yes — Joseph Marik's NPI (1710969860) is active in the NPPES registry as of the last update on 2016-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.