Tammy Jo Olson, D.O
Hospitalist Physician · Fargo, ND
Tammy Jo Olson, D.O is a hospitalist physician with a practice address in Fargo, North Dakota, and NPI 1346413291, issued on Apr 10, 2008. Check the license on the North Dakota Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Tammy Jo Olson
- Credential
- D.O
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 52318 MN
Self-reported in NPPES; status is on the state search - Practice location
- 5225 23RD Ave S, Fargo, ND 58104
- Phone
- (701) 417-2575
- Enumerated
- Apr 10, 2008
- Record last updated
- Sep 22, 2023
- Medicare enrollment
- Enrolled (PECOS I20231108000021); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 138 in North Dakota → Look up another NPI →
Also registered at 5225 23RD Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tammy Jo Olson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Dakota Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Sanford Medical Center FargoWest Fargo, ND · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Tammy Jo Olson among 138 hospitalist physician records in North Dakota
Tammy Jo Olson, D.O is one of 138 hospitalist physician records with a practice address in North Dakota. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 17% of them.
- NPI issued2008 · 17% of these records are older, 78% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 89% of these records are
- Graduated2008 · median 2012 among the 122 with a school on file
- Record last updated2023 · 22% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 hospitalist physician records list a practice address in Fargo
They are 86 of the 7,209 NPPES records with a practice address in Fargo, and 138 hospitalist physician records in North Dakota.
All 138 in North Dakota → Every provider in Fargo → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Raimantas Drublionis, MDFargo, ND 581041942305206
- Osama Elhilali, M.DFargo, ND 581041780023788
- Chad Ficek, M.D.Fargo, ND 581041629324793
- Joleen Finken, MDFargo, ND 581041427009844
- James Fowler, MDFargo, ND 581041194726596
- Frederick KieleyFargo, ND 581041306263868
- Giles McNeill, DOFargo, ND 581041417022716
- Chinwe Oraka, M.D., MPHFargo, ND 581041710042395
Common questions
What is Tammy Jo Olson, D.O's NPI number?
Tammy Jo Olson, D.O's National Provider Identifier (NPI) is 1346413291, issued on Apr 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Jo Olson, D.O located?
The NPPES record lists a practice address at 5225 23RD Ave S, Fargo, ND, 58104. Phone: (701) 417-2575. Providers update this record themselves, so call before visiting.
How can I verify Tammy Jo Olson, D.O's license?
Search the North Dakota Board of Medicine at https://www.ndbom.org/. 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. Medicare files from data.cms.gov. 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.