Anna Rose Niesen, MD
Gastroenterology Physician · St Louis, MO
Anna Rose Niesen, MD is a gastroenterology physician with a practice address in St Louis, Missouri, and NPI 1184709107, issued on Oct 26, 2006. Check the license (Missouri R8939, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Anna Rose Niesen
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- R8939 MO
Self-reported in NPPES; status is on the state search - Practice location
- 6400 Clayton Road, St Louis, MO 63117
- Phone
- (314) 781-8405
- Enumerated
- Oct 26, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (314) 781-2462
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 414 in Missouri → Look up another NPI →
Verify Anna Rose Niesen 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 R8939Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Anna Rose Niesen among 414 gastroenterology physician records in Missouri
Anna Rose Niesen, MD is one of 414 gastroenterology physician records with a practice address in Missouri. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 47% newer
- In a Medicare fileNo · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 73% of these records are
- Record last updated2025 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Missouri
There are 414 gastroenterology physician records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 414 in Missouri → Every provider in St Louis → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ruben Aymerich, MDSaint Louis, MO 631171609858562
- Hani El-Halawany, M.D.Richmond Heights, MO 631171558633008
- Neil Frederickson, M.D.Saint Louis, MO 631171245385327
- Ronald Gould, M.D.Saint Louis, MO 631171811042708
- Michael Heavey, M.D.Saint Louis, MO 631171316089261
- Joel Riley, M.D.Saint Louis, MO 631171164440301
- Nicole Shen, M.D.Saint Louis, MO 631171073856027
- Giao Vuong, M.D.Saint Louis, MO 631171902034499
Common questions
What is Anna Rose Niesen, MD's NPI number?
Anna Rose Niesen, MD's National Provider Identifier (NPI) is 1184709107, issued on Oct 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Anna Rose Niesen, MD located?
The NPPES record lists a practice address at 6400 Clayton Road, St Louis, MO, 63117. Phone: (314) 781-8405. Providers update this record themselves, so call before visiting.
How can I verify Anna Rose Niesen, MD's license?
NPPES lists Missouri license number R8939, 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. 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.