NPPES file of Aug 9, 2026

Robert I. Markenson, M.D.

Orthopaedic Surgery Physician · Saint Louis, MO

Robert I. Markenson, M.D. is an orthopaedic surgery physician with a practice address in Saint Louis, Missouri, and NPI 1104870096, issued on May 22, 2006. Check the license (Missouri 36092, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104870096
Name
Robert I. Markenson
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
36092 MO
Self-reported in NPPES; status is on the state search
Practice location
12152 Tesson Ferry RD, Saint Louis, MO 63128
Phone
(314) 849-5414
Enumerated
May 22, 2006
Record last updated
Nov 18, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(314) 849-2042
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 12152 Tesson Ferry RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Paulo Bicalho, M.D.Orthopaedic Surgery Physician1487606810
  2. Perry Geistler, DPMFoot & Ankle Surgery Podiatrist1053429779
  3. Brooke Hogrefe, M.A.Professional Counselor1194131565
  4. Thomas Lee, M.D.Orthopaedic Surgery Physician1194779041
  5. Susan Morris, NP-CFamily Nurse Practitioner1982875415
  6. Kathryn SchmidtFoot & Ankle Surgery Podiatrist1326780065

Verify Robert I. Markenson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 36092
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 60.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score63.2
  2. Costout of 100 · 30%17.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Robert I. Markenson among 514 orthopaedic surgery physician records in Missouri

Robert I. Markenson, M.D. is one of 514 orthopaedic surgery physician records with a practice address in Missouri. 77% 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 17% of them.

  • NPI issued2006 · 17% of these records are older, 53% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2008 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Missouri

There are 514 orthopaedic surgery physician records in Missouri.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Stephen Benz, M.D.Saint Louis, MO 631281952354706
  2. Paulo Bicalho, M.D.Saint Louis, MO 631281487606810
  3. Dennis Dusek, M.D.Saint Louis, MO 631281073563482
  4. David Fagan, M.D.Saint Louis, MO 631281952354763
  5. David Haueisen, M.D.Saint Louis, MO 631281497705735
  6. Lawrence Kriegshauser, M.D.Saint Louis, MO 631281265481667
  7. Coles L'Hommedieu, M.D.Saint Louis, MO 631281487603320
  8. Thomas Lee, M.D.Saint Louis, MO 631281194779041

Common questions

What is Robert I. Markenson, M.D.'s NPI number?

Robert I. Markenson, M.D.'s National Provider Identifier (NPI) is 1104870096, issued on May 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert I. Markenson, M.D. located?

The NPPES record lists a practice address at 12152 Tesson Ferry RD, Saint Louis, MO, 63128. Phone: (314) 849-5414. Providers update this record themselves, so call before visiting.

How can I verify Robert I. Markenson, M.D.'s license?

NPPES lists Missouri license number 36092, 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.

What is Robert I. Markenson, M.D.'s MIPS final score?

The 2023 MIPS final score is 60.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.