John P. Hagen, MD
Anesthesiology Physician · Saint Louis, MO
John P. Hagen, MD is an anesthesiology physician with a practice address in Saint Louis, Missouri, and NPI 1376745414, issued on Jun 1, 2007. Check the license (Missouri 2010005851, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- John P. Hagen
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 2010005851 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Childrens PL, Saint Louis, MO 63110
- Phone
- (314) 454-6215
- Enumerated
- Jun 1, 2007
- Record last updated
- Aug 10, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (314) 454-2296
- Medicare enrollment
- Enrolled (PECOS I20110916000414); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,153 in Missouri → Look up another NPI →
Also registered at 1 Childrens PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mohamed Abdelbaki, MDPediatric Hematology & Oncology Physician1508021361
- Christi Abeln, PNPPediatric Nurse Practitioner1023034253
- Loren Abernathy, PNPPediatric Nurse Practitioner1215583117
- Freddy-May Abisamra, CGCGenetic Counselor (M.S.)1306538111
- Manjusha Abraham, MDPediatric Critical Care Medicine Physician1508126699
- Philip Abraham, MDHospitalist Physician1720309016
Verify John P. Hagen 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 2010005851Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Western Anesthesiology Associates IncSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John P. Hagen among 1,153 anesthesiology physician records in Missouri
John P. Hagen, MD is one of 1,153 anesthesiology physician records with a practice address in Missouri. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2006 · median 2007 among the 718 with a school on file
- Record last updated2010 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
490 anesthesiology physician records list a practice address in Saint Louis
They are 490 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,153 anesthesiology physician records in Missouri.
All 1,153 in Missouri → Every provider in Saint Louis → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Eric Appelgren, MDSaint Louis, MO 631101215916796
- Reginald Bulkley, MDSaint Louis, MO 631101639158199
- Rajeswari Chintapalli, MDSaint Louis, MO 631101891790689
- Wai Chiu, MDSaint Louis, MO 631101215976956
- Tatyana Demidovich, MDSt Louis, MO 631101376539668
- Christopher Hamlin, MDSaint Louis, MO 631101033141742
- Philip Kalarickal, MDSaint Louis, MO 631101568424984
- Daniel Kane, MDSaint Louis, MO 631101801884986
Common questions
What is John P. Hagen, MD's NPI number?
John P. Hagen, MD's National Provider Identifier (NPI) is 1376745414, issued on Jun 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John P. Hagen, MD located?
The NPPES record lists a practice address at 1 Childrens PL, Saint Louis, MO, 63110. Phone: (314) 454-6215. Providers update this record themselves, so call before visiting.
How can I verify John P. Hagen, MD's license?
NPPES lists Missouri license number 2010005851, 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.
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.