Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

William O Quinn, MD

Sees patients in Denver, CO · Port Royal, SC · Sterling, VA … · Colorado, South Carolina, Virginia

Summary

William O Quinn, MD (Family Practice) is enrolled with Medicare at 7 practice locations in Denver, CO, Port Royal, SC and Sterling, VA and other places. NPI 1700990587. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about William O Quinn, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
27Years since medical school (graduated 1999)
MaleGender (as listed)
MD Now Medical Centers IncGroup practice (+5 more)

Quick answers

Where does William O Quinn see patients?
Medicare's clinician data lists 7 practice locations, including Denver, CO, Port Royal, SC and Sterling, VA. Call before your visit to confirm the address.
What is William O Quinn's specialty?
Medicare lists Family Practice as the primary specialty.
Does William O Quinn accept Medicare assignment?
Yes. Medicare's clinician data says William O Quinn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does William O Quinn offer telehealth?
Medicare's clinician data says William O Quinn offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for William O Quinn?
(720) 449-8050, as listed in official Medicare / NPI Registry data.
What is William O Quinn's NPI number?
1700990587. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where William O Quinn is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists William O Quinn as a member of these groups (CMS data updated 2026-10-02).

  • MD Now Medical Centers Inc310 clinicians in the group
  • Novant Health Urgent Cares LLC177 clinicians in the group
  • Urgent Care Nevada LLC103 clinicians in the group
  • Charleston Carenow Urgent Care LLC80 clinicians in the group
  • Northern Virginia Carenow Urgent Care LLC56 clinicians in the group
  • HealthONE Carenow Urgent Care LLC55 clinicians in the group

Specialties

Find other Family Practice doctors in Colorado →

Other family doctors in Denver

Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.

All family doctors in Denver →

Clinician information

CredentialMD
Graduation year1999
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1700990587
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians