Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Alan S Hanson, MD
Nephrology Physician in Denver, CO · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891777181
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Registry record
Entity type Individual (Type 1)
Name Dr. Alan S Hanson
Credential MD
Sex Male
Practice address 1601 E 19th Ave, Ste 4300, Denver, CO, 80218
Phone (303) 327-4700
Fax (303) 327-4711
Enumeration date Nov 14, 2005
Last updated in NPPES Jan 4, 2008
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 |
|---|---|---|---|
| 01286806 | Medicaid | CO | - |
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 NPI 1891777181 active?
Yes, as of the latest NPPES snapshot, NPI 1891777181 is active (record last updated 2008-01-04).
How do I verify Alan Hanson's NPI record?
Cross-check NPI 1891777181 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-04.