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James Opoien, MD PHD
NPI 1265429674 · Family Medicine Physician · Marinette, WI
James Opoien, MD PHD is a Family Medicine Physician provider in Marinette, WI (NPI 1265429674).
Provider details
- NPI number
- 1265429674
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 36357020 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
2820 Roosevelt Road
Marinette, WI 54143-3834
Phone: (715) 735-5225
Fax: (715) 735-5388
Street-level locationGet directions
Mailing address
Po Box 1866
Green Bay, WI 54305-1866
Registry dates
- Enumerated
- 2005-09-30
- Last updated
- 2016-11-01
Frequently asked questions
- What is James Opoien's NPI number?
- James Opoien's National Provider Identifier (NPI) is 1265429674, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Opoien's specialty?
- James Opoien is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Opoien located?
- James Opoien's practice location on file with NPPES is 2820 Roosevelt Road, Marinette, WI 54143-3834.
- What is James Opoien's phone number?
- The practice phone number listed in the NPPES registry for James Opoien is (715) 735-5225.
- Is James Opoien's NPI active?
- Yes — James Opoien's NPI (1265429674) is active in the NPPES registry as of the last update on 2016-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.