Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joel Gregory Winner, M.D.
Psychiatry Physician in Boulder, CO · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356550131
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Registry record
Entity type Individual (Type 1)
Name Joel Gregory Winner
Credential M.D.
Sex Male
Practice address 2595 Canyon Blvd, Suite 100, Boulder, CO, 80302
Phone (720) 920-9174
Fax (720) 920-9307
Enumeration date May 21, 2007
Last updated in NPPES Jul 21, 2009
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| ENROLLED | Medicaid | MN | - |
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Joel Winner?
Joel Winner is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-07-21.