Matthew L. Hamar, D.O.
Family Medicine Physician · Bismarck, ND
Matthew L. Hamar, D.O. is a family medicine physician with a practice address in Bismarck, North Dakota, and NPI 1154618130, issued on Jun 29, 2011. Check the license (North Dakota 12489, as entered in NPPES) on the North Dakota Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Matthew L. Hamar
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 12489 ND
RL11964 ND
Self-reported in NPPES; status is on the state search - Practice location
- 401 N 9TH St, Bismarck, ND 58501
- Phone
- (701) 712-4550
- Enumerated
- Jun 29, 2011
- Record last updated
- Jun 14, 2023
- Fax
- (701) 712-4216
- Medicaid ID
- 12083 ND
- Medicare enrollment
- Enrolled (PECOS I20140606000163); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 596 in North Dakota → Look up another NPI →
Also registered at 401 N 9TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Ahmann, DNP, APRN, FNP-BCNurse Practitioner1275866824
- Bilal Ahmed, MDEndocrinology, Diabetes & Metabolism Physician1720025034
- William Altringer, MDSurgery Physician1114970266
- Nicholas Battista, M.D.Gastroenterology Physician1528470135
- Theresa Borrowman, M.D.Dermatopathology Physician1083694269
- Amber Bossert, PTPhysical Therapist1518136159
Verify Matthew L. Hamar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Dakota Board of Medicine
Search for license 12489Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.0 times the Medicare Part D claims of the average family medicine physician in 2024
17,764 Medicare Part D claims for 886 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 310 claims were for opioids.
Most prescribed
- Levothyroxine Sodium989 claims
- Atorvastatin Calcium741 claims
- Amlodipine Besylate693 claims
- Rosuvastatin Calcium624 claims
- Losartan Potassium531 claims
- Metoprolol Succinate485 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Innovis Health LLCBismarck, ND
- Omaha Therapy IncDickinson, ND
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew L. Hamar among 596 family medicine physician records in North Dakota
Matthew L. Hamar, D.O. is one of 596 family medicine physician records with a practice address in North Dakota. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 56% of them.
- NPI issued2011 · 56% of these records are older, 41% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2011 · median 2007 among the 305 with a school on file
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
116 family medicine physician records list a practice address in Bismarck
They are 116 of the 3,669 NPPES records with a practice address in Bismarck, and 596 family medicine physician records in North Dakota.
All 596 in North Dakota → Every provider in Bismarck → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gary Betting, MDBismarck, ND 585011003844648
- James Bossort, MDBismarck, ND 585011003879545
- John Botsford, MDBismarck, ND 585011639125321
- John Erickstad, MDBismarck, ND 585011457399644
- David Field, MDBismarck, ND 585011598788390
- Jeffrey Hostetter, MDBismarck, ND 585011275561102
- Paul Jondahl, MDBismarck, ND 585011780638981
- Jason Moe, MDBismarck, ND 585011396763975
Common questions
What is Matthew L. Hamar, D.O.'s NPI number?
Matthew L. Hamar, D.O.'s National Provider Identifier (NPI) is 1154618130, issued on Jun 29, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Matthew L. Hamar, D.O. located?
The NPPES record lists a practice address at 401 N 9TH St, Bismarck, ND, 58501. Phone: (701) 712-4550. Providers update this record themselves, so call before visiting.
How can I verify Matthew L. Hamar, D.O.'s license?
NPPES lists North Dakota license number 12489, as entered by the provider. 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.
How much does Matthew L. Hamar, D.O. prescribe under Medicare Part D?
In 2024, Matthew L. Hamar, D.O. had 17,764 Medicare Part D claims for 886 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.