Mark A. Hassen, MD
Emergency Medicine Physician · Farmington, MO
Mark A. Hassen, MD is an emergency medicine physician with a practice address in Farmington, Missouri, and NPI 1932151958, issued on May 17, 2006. Check the license (Missouri 101250, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Mark A. Hassen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 101250 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1212 Weber RD, Farmington, MO 63640
- Phone
- (573) 701-7215
- Enumerated
- May 17, 2006
- Record last updated
- Mar 17, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (573) 701-7117
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,405 in Missouri → Look up another NPI →
Also registered at 1212 Weber RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barbara Anderson, RN, CRNACertified Registered Nurse Anesthetist1093760688
- Kelly Beaver, NPNurse Practitioner1760790786
- James Christopher, PTAPhysical Therapy Assistant1619038759
- Kimberly Combs, NPNurse Practitioner1477859213
- Mary Dahmm, NPNurse Practitioner1962762575
- Dwayne Damba, DOFamily Medicine Physician1194777193
Verify Mark A. Hassen 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 101250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average emergency medicine physician in 2024
218 Medicare Part D claims for 135 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 50 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen35 claims
- Prednisone32 claims
- Doxycycline Hyclate18 claims
- Levofloxacin14 claims
- Oxycodone-Acetaminophen11 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 A. Hassen among 1,405 emergency medicine physician records in Missouri
Mark A. Hassen, MD is one of 1,405 emergency medicine physician records with a practice address in Missouri. 80% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2008 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Missouri
There are 1,405 emergency medicine physician records in Missouri.
All 1,405 in Missouri → Every provider in Farmington → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Sonja Hampton, RN, BC, FNPFarmington, MO 636401649225996
- Kelly Hartel, M.D.Farmington, MO 636401588636823
- John Hunt, M.D.Farmington, MO 636401770527376
- Phillip Brewer, MDBonne Terre, MO 636281215902556
- Michael Clippard, M.D., FAAPBonne Terre, MO 636281730106287
- Gerardo Gutierrez, M.D.Bonne Terre, MO 636281679599518
- William Christmas, DOArcadia, MO 636211659324457
- Michael Barnum, M.D.Potosi, MO 636641093779209
Common questions
What is Mark A. Hassen, MD's NPI number?
Mark A. Hassen, MD's National Provider Identifier (NPI) is 1932151958, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Hassen, MD located?
The NPPES record lists a practice address at 1212 Weber RD, Farmington, MO, 63640. Phone: (573) 701-7215. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Hassen, MD's license?
NPPES lists Missouri license number 101250, 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 Mark A. Hassen, MD prescribe under Medicare Part D?
In 2024, Mark A. Hassen, MD had 218 Medicare Part D claims for 135 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.