IndividualActive
Clay Hallberg, DO
NPI 1811975691 · Family Medicine Physician · Oelwein, IA
Clay Hallberg, DO is a Family Medicine Physician provider in Oelwein, IA (NPI 1811975691).
Provider details
- NPI number
- 1811975691
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 02321 (IA)
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
204 8th Ave Se
Oelwein, IA 50662-2448
Phone: (319) 283-2651
Fax: (319) 283-1430
Street-level locationGet directions
Mailing address
204 8th Ave Se
Oelwein, IA 50662-2448
Registry dates
- Enumerated
- 2006-01-03
- Last updated
- 2007-10-22
Frequently asked questions
- What is Clay Hallberg's NPI number?
- Clay Hallberg's National Provider Identifier (NPI) is 1811975691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clay Hallberg's specialty?
- Clay Hallberg is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Clay Hallberg located?
- Clay Hallberg's practice location on file with NPPES is 204 8th Ave Se, Oelwein, IA 50662-2448.
- What is Clay Hallberg's phone number?
- The practice phone number listed in the NPPES registry for Clay Hallberg is (319) 283-2651.
- Is Clay Hallberg's NPI active?
- Yes — Clay Hallberg's NPI (1811975691) is active in the NPPES registry as of the last update on 2007-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.