Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John William Tillett, M.D.
Urology Physician in Denver, CO · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003090382
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Registry record
Entity type Individual (Type 1)
Name Dr. John William Tillett
Credential M.D.
Sex Male
Practice address 850 E Harvard Ave Ste 305, Denver, CO, 80210
Phone (303) 825-8822
Fax (303) 825-4022
Enumeration date Dec 22, 2007
Last updated in NPPES Oct 17, 2024
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 |
|---|---|---|---|
| 9377632 | Other | FL | AETNA |
| 149XJ | Other | FL | BCBS OF FL |
| 0028405-00 | Medicaid | FL | - |
| 1976114 | Other | FL | CIGNA |
| P1002313 | Other | FL | FREEDOM HEALTH |
| 10Y538 | Other | FL | HEALTHY KIDS |
| 342733 | Other | FL | AVMED |
| P01194994 | Other | FL | RAILROAD MCR |
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
How do I verify John Tillett's NPI record?
Cross-check NPI 1003090382 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1003090382 active?
Yes, as of the latest NPPES snapshot, NPI 1003090382 is active (record last updated 2024-10-17).
Other providers at this practice address
Browse all → Stephen Bales Urology Physician · Denver, CO NPI 1750383394 Brett Abernathy Urology Physician · Denver, CO NPI 1437106028 Carsten Sorensen Urology Physician · Denver, CO NPI 1780625392 Donald May Urology Physician · Denver, CO NPI 1689615999 Juan Montoya Urology Physician · Denver, CO NPI 1588607626 Richard Heppe Urology Physician · Denver, CO NPI 1649207077 Lisa Zwiers Surgical Physician Assistant · Denver, CO NPI 1396924049 Cynthia Melton Nurse Practitioner · Denver, CO NPI 1235491911
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-17.