DR. ROBERT P. WILLIAMS M.D.
NPI 1164527552
Internal Medicine - Gastroenterology in Washington D.c., DC

Q: What is Robert Williams's NPI number?

The NPI number for Robert Williams is 1164527552. It was assigned to this individual provider in the NPPES registry on September 13, 2006.

Q: What is Robert Williams's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Robert Williams was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since September 13, 2006PECOS Enrolled

1140 VARNUM STREET N.E, SUITE 201, WASHINGTON D.C., DC 20017(202) 529-4535(202) 635-4247 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Robert P. Williams M.d. NPPES

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

DR. ROBERT P. WILLIAMS M.D. (NPI 1164527552) is an individual gastroenterology provider in Washington D.c., District Of Columbia, licensed in District Of Columbia (MD13374) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1164527552

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. ROBERT P. WILLIAMSCredential: M.D.

Location Address1140 VARNUM STREET N.E, SUITE 201Washington D.c., DC 20017-2153

Mailing Address1140 Varnum Street N.e, Suite 201Washington D.c., DC 20017-2153 · (202) 529-4535 · Fax (202) 635-4247

Phone(202) 529-4535

Fax(202) 635-4247

Sole ProprietorYes

Enumeration DateSeptember 13, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1164527552 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 DC · MD13374

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.

1140 VARNUM STREET N.E, Washington D.c., DC 20017

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Other Identifiers 2

Medicare UPINC89137DC

Medicare ID-Type Unspecified456181DC

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert P. 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 20017 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

5 suppliers15 claims23 services$4.61 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 1164527552. It was assigned to this individual provider in the NPPES registry on September 13, 2006.

Where is Robert Williams located?

Robert Williams practices at 1140 Varnum Street N.E Suite 201, Washington D.C., DC 20017. The listed phone number is (202) 529-4535.

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 July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.