Mark Wiche, DO
Internal Medicine Physician · Fargo, ND
Mark Wiche, DO is an internal medicine physician with a practice address in Fargo, North Dakota, and NPI 1811636038, issued on Jun 4, 2022. Check the license (North Dakota RL18524, as entered in NPPES) on the North Dakota Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark Wiche
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- RL18524 ND
Self-reported in NPPES; status is on the state search - Practice location
- 5225 23RD Ave S, Fargo, ND 58104
- Phone
- (701) 234-5933
- Enumerated
- Jun 4, 2022
- Record last updated
- Jun 4, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 245 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 Mark Wiche in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Dakota Board of Medicine
Search for license RL18524Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average internal medicine physician in 2024
820 Medicare Part D claims for 117 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate48 claims
- Atorvastatin Calcium42 claims
- Lisinopril42 claims
- Gabapentin38 claims
- Trazodone Hcl38 claims
- Eliquis34 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.
Mark Wiche among 245 internal medicine physician records in North Dakota
Mark Wiche, DO is one of 245 internal medicine physician records with a practice address in North Dakota. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 85% of them.
- NPI issued2022 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
133 internal medicine physician records list a practice address in Fargo
They are 133 of the 7,209 NPPES records with a practice address in Fargo, and 245 internal medicine physician records in North Dakota.
All 245 in North Dakota → Every provider in Fargo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Steven Clemenson, MDFargo, ND 581041174541874
- Travis Geier, MDFargo, ND 581041760090138
- Mathew Gerving, MDFargo, ND 581041285243543
- Brent Hella, M.D.Fargo, ND 581041245286988
- Irina Hillman, MDFargo, ND 581041114422375
- Ciciley Littlewolf, MDFargo, ND 581041588225049
- Barrie March, M.D.Fargo, ND 581041326160151
- Landon Melchior, MDFargo, ND 581041992291488
Common questions
What is Mark Wiche, DO's NPI number?
Mark Wiche, DO's National Provider Identifier (NPI) is 1811636038, issued on Jun 4, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mark Wiche, DO located?
The NPPES record lists a practice address at 5225 23RD Ave S, Fargo, ND, 58104. Phone: (701) 234-5933. Providers update this record themselves, so call before visiting.
How can I verify Mark Wiche, DO's license?
NPPES lists North Dakota license number RL18524, 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 Mark Wiche, DO prescribe under Medicare Part D?
In 2024, Mark Wiche, DO had 820 Medicare Part D claims for 117 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.