Mark R. Katsaros, D.O.
Emergency Medicine Physician · Jefferson City, MO
Mark R. Katsaros, D.O. is an emergency medicine physician with a practice address in Jefferson City, Missouri, and NPI 1306894019, issued on May 5, 2006. Check the license (Missouri 114695, 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 R. Katsaros
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 114695 MO
Self-reported in NPPES; status is on the state search - Practice location
- 3527 W Truman Blvd, Jefferson City, MO 65109
- Phone
- (573) 882-8910
- Enumerated
- May 5, 2006
- Record last updated
- May 29, 2024
- Fax
- (573) 884-1585
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,405 in Missouri → Look up another NPI →
Also registered at 3527 W Truman Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edwin Breshears, M.D.Emergency Medicine Physician1154417178
- Benjamin Coe, PHD, DNP, APRN, RNFamily Nurse Practitioner1841726031
- Jessica Helmig, MS CCC-SLPSpeech-Language Pathologist1710244140
- Tawnyia Jerome, M.D.Family Medicine Physician1710955760
- Tina Kile, FNP-CFamily Nurse Practitioner1407399413
- Brandon Lewis, PA-CPhysician Assistant1821708496
Verify Mark R. Katsaros 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 114695Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average emergency medicine physician in 2024
493 Medicare Part D claims for 339 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Albuterol Sulfate Hfa70 claims
- Amoxicillin-Clavulanate Potass69 claims
- Cephalexin68 claims
- Methylprednisolone52 claims
- Azithromycin40 claims
- Doxycycline Hyclate31 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 R. Katsaros among 1,405 emergency medicine physician records in Missouri
Mark R. Katsaros, D.O. 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 updated2024 · 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).
20 emergency medicine physician records list a practice address in Jefferson City
They are 20 of the 1,414 NPPES records with a practice address in Jefferson City, and 1,405 emergency medicine physician records in Missouri.
All 1,405 in Missouri → Every provider in Jefferson City → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Edwin Breshears, M.D.Jefferson City, MO 651091154417178
- Charles Judy, M.D.Jefferson City, MO 651091467465799
- Thomas Nittler, MDJefferson City, MO 651091477548352
- Michael Wilson, D.O.Jefferson City, MO 651091992786693
- Kelly Douglas, M.D.Jefferson City, MO 651011366889909
- Jeffrey Ehmke, D.O.Jefferson City, MO 651011780631978
- Jared Emery, D.O.Jefferson City, MO 651011346655636
- Steven Judge, MDJefferson Cty, MO 651011144261736
Common questions
What is Mark R. Katsaros, D.O.'s NPI number?
Mark R. Katsaros, D.O.'s National Provider Identifier (NPI) is 1306894019, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark R. Katsaros, D.O. located?
The NPPES record lists a practice address at 3527 W Truman Blvd, Jefferson City, MO, 65109. Phone: (573) 882-8910. Providers update this record themselves, so call before visiting.
How can I verify Mark R. Katsaros, D.O.'s license?
NPPES lists Missouri license number 114695, 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 R. Katsaros, D.O. prescribe under Medicare Part D?
In 2024, Mark R. Katsaros, D.O. had 493 Medicare Part D claims for 339 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.