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KATHERINE MARIE RITZENTHALER PA-C
NPI 1255565123
Physician Assistant - Medical in Chicago, IL

Active since May 07, 2009
675 N SAINT CLAIR ST, CHICAGO, IL 60611(312) 695-4033 Get Directions Write a Review

NPPES record last updated: October 15, 2009. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Katherine Marie Ritzenthaler Pa-c NPPES

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

KATHERINE MARIE RITZENTHALER PA-C (NPI 1255565123) is an individual medical provider in Chicago, Illinois, licensed in Illinois (085.003399) and active in the NPI registry since May 2009.

NPPES Registry Identity

NPI1255565123
Entity TypeIndividualFemale
Primary Taxonomy363AM0700X
Provider Legal NameKATHERINE MARIE RITZENTHALERCredential: PA-C
Location Address675 N SAINT CLAIR STChicago, IL 60611-5975
Mailing Address3200 N Lake Shore Dr, #402Chicago, IL 60657-3952 · (651) 336-2280
Phone(312) 695-4033
Sole ProprietorNo
Enumeration DateMay 7, 2009
Last NPPES UpdateOctober 15, 2009
✔ NPI 1255565123 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License✔ Licensed in IL · 085.003399
675 N SAINT CLAIR ST, Chicago, IL 60611
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TAYLOR MARIE HOGAN WINTERHALER AGACNP-BC
Nurse Practitioner (Acute Care)
675 N SAINT CLAIR ST
CHICAGO, IL 60611
Cook County (206) 883-7722
SHARON A ALLEN APRN
Nurse Practitioner (Adult Health)
675 N SAINT CLAIR ST, 21-100
CHICAGO, IL 60611
Cook County (312) 695-0316
HERON RODRIGUEZ MD
Surgery (Vascular Surgery)
675 N SAINT CLAIR ST, NORTHWESTERN MEMORIAL HOSPIALT GALTER 19-100
CHICAGO, IL 60611
Cook County (312) 695-2714
DR. DARREN MICHAEL BRENNER M.D.
Internal Medicine (Gastroenterology)
675 N SAINT CLAIR ST, SUITE 17-250
CHICAGO, IL 60611
Cook County (312) 695-5620
DR. ABDUL AZIZ AADAM M.D.
Internal Medicine (Gastroenterology)
675 N SAINT CLAIR ST, GASTROENTEROLOGY - SUITE 1400
CHICAGO, IL 60611
Cook County (312) 926-2000
JAN ELMAN STOUT PSYD
Psychologist (Clinical)
675 N SAINT CLAIR ST, SUITE 14-200
CHICAGO, IL 60611
Cook County (312) 695-7269
EMILY ELIZABETH HANDLEY OTD, OTR/L
Occupational Therapist
675 N SAINT CLAIR ST
CHICAGO, IL 60611
Cook County (815) 919-1791
SEEMA SINGHAL MD
Internal Medicine (Hematology)
675 N SAINT CLAIR ST, GALTER 21-100
CHICAGO, IL 60611
Cook County (312) 695-0990

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 Katherine Ritzenthaler's NPI number?

The NPI number for Katherine Ritzenthaler is 1255565123. It was assigned to this individual provider in the NPPES registry on May 7, 2009.

Where is Katherine Ritzenthaler located?

Katherine Ritzenthaler practices at 675 N Saint Clair St, Chicago, IL 60611. The listed phone number is (312) 695-4033.

What is Katherine Ritzenthaler's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

When was this NPI record last updated?

The NPPES record for Katherine Ritzenthaler was last updated on October 15, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.