MS. ANNA ROSE NIESEN MD
NPI 1184709107
Internal Medicine - Gastroenterology in St Louis, MO

Q: What is Anna Niesen's NPI number?

The NPI number for Anna Niesen is 1184709107. It was assigned to this individual provider in the NPPES registry on October 26, 2006.

Q: What is Anna Niesen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Anna Niesen was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 26, 2006

6400 CLAYTON ROAD, STE 201, ST LOUIS, MO 63117(314) 781-8405(314) 781-2462 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Ms. Anna Rose Niesen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. ANNA ROSE NIESEN MD (NPI 1184709107) is an individual gastroenterology provider in St Louis, Missouri, licensed in Missouri (R8939) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1184709107

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameMS. ANNA ROSE NIESENCredential: MD

Location Address6400 CLAYTON ROAD, STE 201St Louis, MO 63117

Mailing Address6400 Clayton Road, Ste 201St Louis, MO 63117 · (314) 781-8405 · Fax (314) 781-2462

Phone(314) 781-8405

Fax(314) 781-2462

Sole ProprietorNo

Enumeration DateOctober 26, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1184709107 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MO · R8939

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License R8939 (MO)

6400 CLAYTON ROAD, St Louis, MO 63117

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Anna Niesen's NPI number?

The NPI number for Anna Niesen is 1184709107. It was assigned to this individual provider in the NPPES registry on October 26, 2006.

Where is Anna Niesen located?

Anna Niesen practices at 6400 Clayton Road Ste 201, St Louis, MO 63117. The listed phone number is (314) 781-8405.

What is Anna Niesen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Anna Niesen was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.