NPI Portal NPI Lookup & Verification

William Qutub

William Qutub is a General Practice Physician provider (General Practice) practicing in Denver, CO, registered in the NPPES registry with NPI 1356734701 since 2015.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1356734701
Entity type Individual (Type 1)
Name William Qutub
Sex Male
Practice address Denver, CO, 80224
Phone 3032469879
Enumeration date 2015-03-10
Last updated in NPPES 2015-03-10

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208D00000X General Practice Physician Primary DR.0045106 CO
Copy-ready billing details
Provider: William Qutub
NPI: 1356734701
Taxonomy: 208D00000X (General Practice Physician)
Address: Denver, CO, 80224

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1689652059 Richard Loeffler Individual Emergency Medicine Physician Denver, CO
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1750540829 Jason Chen Individual Family Medicine Physician Denver, CO
1619112406 Cynthia Hartley Individual Physician Assistant Denver, CO
1720220718 Front Range Primary Care Partners Organization Primary Care Clinic/Center Denver, CO
1407088495 Woodrow Hill Individual Nurse Practitioner Denver, CO
1487991444 Disability Examination Services Organization Clinic/Center Denver, CO
1598181133 Victoria Kinney Individual Family Nurse Practitioner Denver, CO

Verify this record

Cross-check NPI 1356734701 against the authoritative CMS record: view William Qutub on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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 William Qutub?
William Qutub is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2015-03-10.