Ian Sean Hagemann, MD
Anatomic Pathology Physician · Saint Louis, MO
Ian Sean Hagemann, MD is an anatomic pathology physician with a practice address in Saint Louis, Missouri, and NPI 1275795569, issued on Jun 27, 2008. Check the license (Missouri 2011001458, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Ian Sean Hagemann
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology Physician 207ZP0101X
- License number
- 2011001458 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
- Phone
- (314) 362-5641
- Enumerated
- Jun 27, 2008
- Record last updated
- Apr 17, 2025
- Fax
- (314) 362-0369
- Medicaid ID
- 200005773 MO
- Medicare enrollment
- Enrolled (PECOS I20130829000441); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2008
- Entity
- Type 1 · individual
Also registered at 1 Barnes Jewish Hospital Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ian Sean Hagemann 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 2011001458Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $7,865.00
2 payments; by number, the most common kind was consulting fee; the largest payer was AstraZeneca UK Limited. The 382 providers of this specialty with any payment received $3,145.53 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 one group practice
- Washington UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anatomic Pathology Physician providers in Missouri
There are 52 anatomic pathology physician records in Missouri.
Other anatomic pathology physician records in Missouri
- Tomas Aquino, M.D.Saint Louis, MO1538110762
- Margaret Axelrod, MD, PHDSaint Louis, MO1396421319
- Madhu Bahl, M.D.Saint Louis, MO1396799748
- Edward Bolesta, MDSt Louis, MO1366456840
- Pei-Ling Chen, M.D., PH.D.Saint Louis, MO1033419007
- John Chrisinger, MDSaint Louis, MO1033474192
- Hyung Chung, M.D.Saint Louis, MO1497708937
- Richard Cote, MDSaint Louis, MO1467468330
- Erika Crouch, MDSaint Louis, MO1912923145
- Rebecca Crowther, MD, PHDSaint Louis, MO1326885492
Common questions
What is Ian Sean Hagemann, MD's NPI number?
Ian Sean Hagemann, MD's National Provider Identifier (NPI) is 1275795569, issued on Jun 27, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ian Sean Hagemann, MD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 362-5641. Providers update this record themselves, so call before visiting.
How can I verify Ian Sean Hagemann, MD's license?
NPPES lists Missouri license number 2011001458, 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 Ian Sean Hagemann, MD's MIPS final score?
The 2023 MIPS final score is 79.3 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.