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ROBERT C WILLIAMS M.D.
NPI 1922042571
Internal Medicine - Gastroenterology in Westminster, CO

Active since June 15, 2006PECOS Enrolled
8406 CLAY ST, WESTMINSTER, CO 80031(720) 443-8461(303) 427-4291 Get Directions Write a Review

NPPES record last updated: December 22, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Robert C Williams M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT C WILLIAMS M.D. (NPI 1922042571) is an individual gastroenterology provider in Westminster, Colorado, licensed in Colorado (17931) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1922042571
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameROBERT C WILLIAMSCredential: M.D.
Location Address8406 CLAY STWestminster, CO 80031-3810
Mailing Address3381 Oak StWheat Ridge, CO 80033-5458 · (303) 997-9978
Phone(720) 443-8461
Fax(303) 427-4291
Sole ProprietorNo
Enumeration DateJune 15, 2006
Last NPPES UpdateDecember 22, 2016
✔ NPI 1922042571 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CO · 17931
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
8406 CLAY ST, Westminster, CO 80031
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Other Identifiers 4

Medicare UPINC72987
Medicare ID-Type Unspecified000018530
Medicaid000018530AL
Medicare PIN100008520

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert C Williams M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80031 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$132.55 typical visit price
range $58.06 – $174.82
Typical copayment $33.13 (range $14.51 – $43.70)
Most-billed visit code 99204
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JERRY LEE CUPPS MD
Family Medicine
8406 CLAY ST
WESTMINSTER, CO 80031
Adams County (303) 428-7571
CLAUDIA PATRICIA MORALES PA-C
Physician Assistant
8406 CLAY ST
WESTMINSTER, CO 80031
Adams County (720) 443-8461
DR. PETER M NICHOLSON MD
Internal Medicine
8406 CLAY ST
WESTMINSTER, CO 80031
Adams County (303) 428-7571

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Williams's NPI number?

The NPI number for Robert Williams is 1922042571. It was assigned to this individual provider in the NPPES registry on June 15, 2006.

Where is Robert Williams located?

Robert Williams practices at 8406 Clay St, Westminster, CO 80031. The listed phone number is (720) 443-8461.

What is Robert Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Robert Williams enrolled in Medicare?

Yes. Robert Williams is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Robert Williams was last updated on December 22, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.