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Mr. Jonathan Ellis Welker, PA-C

Medical Physician Assistant in Boulder, CO · enumerated 2009 · practices at Boulder Community Health.

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

National Provider Identifier

1770812588

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Registry record

Entity type Individual (Type 1)
Name Mr. Jonathan Ellis Welker
Credential PA-C
Sex Male
Practice address 4801 Riverbend Rd Ste 200, Boulder, CO, 80301
Phone (303) 415-8800
Fax (303) 415-8801
Enumeration date Dec 8, 2009
Last updated in NPPES Sep 29, 2022

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA.0002934 (CO) Primary

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

What is the NPI number for Jonathan Welker?
The National Provider Identifier (NPI) for Jonathan Welker is 1770812588, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jonathan Welker practice?
The practice location on file with NPPES is in Boulder, CO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-29.