David F. Bjarnason, MD
Rheumatology Physician · Marshfield, WI
David F. Bjarnason, MD is a rheumatology physician with a practice address in Marshfield, Wisconsin, and NPI 1417027699, issued on Nov 8, 2006. Check the license (Wisconsin 18246, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- David F. Bjarnason
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 18246 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 N Oak Ave, Marshfield, WI 54449
- Phone
- (715) 389-3366
- Enumerated
- Nov 8, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 31256200 WI
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 154 in Wisconsin → Look up another NPI →
Also registered at 1000 N Oak Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David F. Bjarnason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 18246Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
David F. Bjarnason among 154 rheumatology physician records in Wisconsin
David F. Bjarnason, MD is one of 154 rheumatology physician records with a practice address in Wisconsin. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 48% newer
- In a Medicare fileNo · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Wisconsin
There are 154 rheumatology physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 154 in Wisconsin → Every provider in Marshfield → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Thomas Bartow, MDMarshfield, WI 544491598865909
- Lisa Francis, MDMarshfield, WI 544491891958435
- Jerry Goldberg, MDMarshfield, WI 544491487754800
- Gauri Pethe, MDMarshfield, WI 544491497232375
- Howard Swanson, MDMarshfield, WI 544491619077021
- Vera Bocoun, MDWausau, WI 544011235233560
- Jan Ciejka, MDWausau, WI 544011124015557
- Arti Khurana, MDWausau, WI 544011124228499
Common questions
What is David F. Bjarnason, MD's NPI number?
David F. Bjarnason, MD's National Provider Identifier (NPI) is 1417027699, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David F. Bjarnason, MD located?
The NPPES record lists a practice address at 1000 N Oak Ave, Marshfield, WI, 54449. Phone: (715) 389-3366. Providers update this record themselves, so call before visiting.
How can I verify David F. Bjarnason, MD's license?
NPPES lists Wisconsin license number 18246, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.