Douglas P. Koehn, M.D.
Family Medicine Physician · Marshall, MO
Douglas P. Koehn, M.D. is a family medicine physician with a practice address in Marshall, Missouri, and NPI 1942242003, issued on Jun 12, 2006. Check the license (Missouri R2K32, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Douglas P. Koehn
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- R2K32 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2303 S Highway 65, Marshall, MO 65340
- Phone
- (660) 886-3364
- Enumerated
- Jun 12, 2006
- Record last updated
- Dec 17, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (660) 886-6044
- Medicaid ID
- 202779401 MO
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 2303 S Highway 65
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Horning, PAPhysician Assistant1205873718
- Jessica Moon, PHARM.D.Pharmacist1194133934
- Mica Newman-Koehn, M.D.Family Medicine Physician1083652416
- Kerrin Papreck, M.D.Family Medicine Physician1730127259
- Timothy Ryan, D.O.Internal Medicine Physician1790721520
- Jack Uhrig, M.D.Internal Medicine Physician1720024557
Verify Douglas P. Koehn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license R2K32Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
18 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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.
Douglas P. Koehn among 2,991 family medicine physician records in Missouri
Douglas P. Koehn, M.D. is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2014 · 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 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 family medicine physician records list a practice address in Marshall
They are 18 of the 192 NPPES records with a practice address in Marshall, and 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Marshall → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sonal Brizendine, MDMarshall, MO 653401396767349
- Pearl Carrillo, DOMarshall, MO 653401487602991
- Melanie Elfrink, MDMarshall, MO 653401629203179
- Ann Gray, M.D.Marshall, MO 653401831153824
- Rashid Hamid, MDMarshall, MO 653401730119116
- Deborah Herrmann, M.D.Marshall, MO 653401508862756
- David Keuhn, M.D.Marshall, MO 653401124061056
- Mica Newman-Koehn, M.D.Marshall, MO 653401083652416
Common questions
What is Douglas P. Koehn, M.D.'s NPI number?
Douglas P. Koehn, M.D.'s National Provider Identifier (NPI) is 1942242003, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas P. Koehn, M.D. located?
The NPPES record lists a practice address at 2303 S Highway 65, Marshall, MO, 65340. Phone: (660) 886-3364. Providers update this record themselves, so call before visiting.
How can I verify Douglas P. Koehn, M.D.'s license?
NPPES lists Missouri license number R2K32, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Douglas P. Koehn, M.D. prescribe under Medicare Part D?
In 2024, Douglas P. Koehn, M.D. had 18 Medicare Part D claims; 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.