William Markus Koeppel, D.O.
Family Medicine Physician · Ellisville, MO
William Markus Koeppel, D.O. is a family medicine physician with a practice address in Ellisville, Missouri, and NPI 1194162883, issued on Jun 4, 2013. Check the license (Missouri 2022017094, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- William Markus Koeppel
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 2022017094 MO
076204 GA
Self-reported in NPPES; status is on the state search - Practice location
- 225 Clarkson RD, Ellisville, MO 63011
- Phone
- (706) 865-4001
- Enumerated
- Jun 4, 2013
- Record last updated
- Aug 12, 2022
- Fax
- (706) 865-6268
- Medicare enrollment
- Enrolled (PECOS I20220829001299); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 225 Clarkson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Clarissa Allen, MDFamily Medicine Physician1952513541
- Bryan Duepner, DOFamily Medicine Physician1861912826
- Eileen Holt, NPFamily Nurse Practitioner1629439054
- Barbara O'Brien, DOAdult Medicine Physician1437211794
- Cynthia Poelker, M.D.Family Medicine Physician1275735458
- Sarah Renfert, M.D.Emergency Medicine Physician1932171600
Verify William Markus Koeppel 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 2022017094Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average family medicine physician in 2024
4,945 Medicare Part D claims for 504 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. 175 claims were for opioids.
Most prescribed
- Amlodipine Besylate245 claims
- Atorvastatin Calcium224 claims
- Levothyroxine Sodium198 claims
- Losartan Potassium190 claims
- Lisinopril161 claims
- Rosuvastatin Calcium117 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.
Industry payments in 2024: $87.55
5 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Physical Therapy Spine And Sports Medicine LLCBallwin, MO
- Westglen Family Physicians LLCEllisville, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Markus Koeppel among 2,991 family medicine physician records in Missouri
William Markus Koeppel, D.O. 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 2013, is newer than 68% of them.
- NPI issued2013 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2009 · median 2006 among the 1,778 with a school on file
- Record last updated2022 · 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).
6 family medicine physician records list a practice address in Ellisville
They are 6 of the 288 NPPES records with a practice address in Ellisville, and 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Ellisville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Clarissa Allen, MDEllisville, MO 630111952513541
- Timothi Beth, D.O.Manchester, MO 630111629083431
- Jessee Crane, M.D.Ellisville, MO 630111417974080
- Jane Gelfand, D.O.Ellisville, MO 630111770996795
- Mark Houston, MDBallwin, MO 630111689640344
- Kelly Jones, MDBallwin, MO 630111417057779
- Mark Lichtenfeld, M.D.Ballwin, MO 630111427149764
- Martin McClintock, MDBallwin, MO 630111427046366
Common questions
What is William Markus Koeppel, D.O.'s NPI number?
William Markus Koeppel, D.O.'s National Provider Identifier (NPI) is 1194162883, issued on Jun 4, 2013. An NPI identifies a provider in billing; it is not a license.
Where is William Markus Koeppel, D.O. located?
The NPPES record lists a practice address at 225 Clarkson RD, Ellisville, MO, 63011. Phone: (706) 865-4001. Providers update this record themselves, so call before visiting.
How can I verify William Markus Koeppel, D.O.'s license?
NPPES lists Missouri license number 2022017094, 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 William Markus Koeppel, D.O. prescribe under Medicare Part D?
In 2024, William Markus Koeppel, D.O. had 4,945 Medicare Part D claims for 504 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.