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Dr. Dominic O Co, MD, PHD

Pediatric Rheumatology Physician in Madison, WI · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649329574

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Registry record

Entity type Individual (Type 1)
Name Dr. Dominic O Co
Credential MD, PHD
Sex Male
Practice address 600 Highland Ave, Madison, WI, 53792
Phone (608) 263-6420
Fax (608) 263-0440
Enumeration date Jan 9, 2007
Last updated in NPPES Jan 12, 2021

Taxonomy & licenses

2080P0216X Pediatric Rheumatology Physician Allopathic & Osteopathic Physicians · License 51334 (WI) Primary
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.

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Frequently asked questions

How do I verify Dominic Co's NPI record?
Cross-check NPI 1649329574 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1649329574 active?
Yes, as of the latest NPPES snapshot, NPI 1649329574 is active (record last updated 2021-01-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-12.