Mark S. Hammar, PA-C
Medical Physician Assistant · Rexburg, ID
Mark S. Hammar, PA-C is a medical physician assistant with a practice address in Rexburg, Idaho, and NPI 1609998731, issued on Apr 6, 2007. Check the license (Idaho PA-734, as entered in NPPES) with the Idaho board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark S. Hammar
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA-734 ID
Self-reported in NPPES; status is on the state search - Practice location
- 37 S 2ND E Ste 202, Rexburg, ID 83440
- Phone
- (208) 356-0234
- Enumerated
- Apr 6, 2007
- Record last updated
- Jun 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (208) 656-8440
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 371 in Idaho → Look up another NPI →
Verify Mark S. Hammar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Idaho board licenses this profession
Search for license PA-734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark S. Hammar among 371 medical physician assistant records in Idaho
Mark S. Hammar, PA-C is one of 371 medical physician assistant records with a practice address in Idaho. 83% 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 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 63% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2021 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 medical physician assistant records list a practice address in Rexburg
They are 10 of the 585 NPPES records with a practice address in Rexburg, and 371 medical physician assistant records in Idaho. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 371 in Idaho → Every provider in Rexburg → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Brett Bagley, P.A. - CERTIFIEDRexburg, ID 834401932254133
- Zachery Brunson, PA-CRexburg, ID 834401447296785
- Dallin Gambles, PARexburg, ID 834401760533400
- Christina Goodman, PARexburg, ID 834401780691394
- Janiel Green, PA-CRexburg, ID 834401114297660
- Greg Klingler, PA-CRexburg, ID 834401972770881
- Rex Meredith, PA-CRexburg, ID 834401780965038
- Steven Pierce, PA-CRexburg, ID 834401184122756
Common questions
What is Mark S. Hammar, PA-C's NPI number?
Mark S. Hammar, PA-C's National Provider Identifier (NPI) is 1609998731, issued on Apr 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark S. Hammar, PA-C located?
The NPPES record lists a practice address at 37 S 2ND E Ste 202, Rexburg, ID, 83440. Phone: (208) 356-0234. Providers update this record themselves, so call before visiting.
How can I verify Mark S. Hammar, PA-C's license?
NPPES lists Idaho license number PA-734, as entered by the provider. Search the Idaho board that licenses this profession; the NPPES record confirms identity 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. 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.