Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Ruby M. Pouw, M.D.
Specialist in Chicago, IL · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821072372
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Registry record
Entity type Individual (Type 1)
Name Mrs. Ruby M. Pouw
Credential M.D.
Sex Female
Practice address 1700 W Van Buren St, 5th Floor, Chicago, IL, 60612
Phone (312) 563-2875
Enumeration date Nov 29, 2005
Last updated in NPPES Sep 20, 2011
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Ruby Pouw?
The National Provider Identifier (NPI) for Ruby Pouw is 1821072372, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ruby Pouw practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Rasa Kazlauskaite Endocrinology, Diabetes & Metabolism Physician · Chicago, IL NPI 1487609954 Cheryl Rucker-Whitaker Cardiovascular Disease Physician · Chicago, IL NPI 1821028622 Rush University Medical Center Public Health & General Preventive Medicine Physician · Chicago, IL NPI 1245263045 Jennifer Ventrelle Registered Dietitian · Chicago, IL NPI 1245263912 William Elliott Public Health & General Preventive Medicine Physician · Chicago, IL NPI 1427073998 Andrea Domas Registered Dietitian · Chicago, IL NPI 1457372898 Jisu Kim Hospitalist Physician · Chicago, IL NPI 1275645871 Suchita Kishore Internal Medicine Physician · Chicago, IL NPI 1528170123
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-20.