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ROBERT J. WILLIAMS III MD
NPI 1891323689
Internal Medicine in Chapel Hill, NC

Active since March 29, 2020PECOS Enrolled
130 MASON FARM ROAD BIOINFORMATICS BUILDING CB# 7030, CHAPEL HILL, NC 27599(919) 966-2537 Get Directions Write a Review

NPPES record last updated: May 15, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 15, 2024, Sep 17, 2021, Mar 29, 2020 (3 updates tracked since 2020).

About Robert J. Williams Iii Md NPPES

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

ROBERT J. WILLIAMS III MD (NPI 1891323689) is an individual internal medicine provider in Chapel Hill, North Carolina, licensed in Utah (12420123-1205) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Salt Lake City, and is a graduate of Central Michigan College Of Medicine (2020).

NPPES Registry Identity

NPI1891323689
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameROBERT J. WILLIAMS IIICredential: MD
Location Address130 MASON FARM ROAD BIOINFORMATICS BUILDING CB# 7030Chapel Hill, NC 27599-0002
Mailing Address30 N 1900 E Rm 4c104Salt Lake City, UT 84132-0002 · (801) 581-7606
Phone(919) 966-2537
Sole ProprietorNo
Medical School CMSCentral Michigan College Of MedicineGraduated 2020
Enumeration DateMarch 29, 2020
Last NPPES UpdateMay 15, 20243 updates tracked since enumeration
NPPES CertifiedMay 15, 2024
✔ NPI 1891323689 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in UT · 12420123-1205
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Secondary Practice Location 1

Location 130 N 1900 E Rm 4C104Salt Lake City, UT 84132-0002 · Phone (801) 581-7606

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of NC.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert J. Williams Iii Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3274939285
PECOS Enrollment IDI20260807002988
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.

Medicare Billing Reassignment

Medicare enrollment records show Robert Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of North Carolina At Chapel Hill
Neurological Surgery
2206 WILBORN AVE, SUITE ONE
South Boston, VA 24592
  • Reassigned Medicare billing, North Carolina enrollment
  • 2,797 clinicians in this Medicare group
NPI 1407308703 (984) 974-1273

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 27599 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
$125.01 typical visit price
range $54.12 – $165.09
Typical copayment $31.25 (range $13.53 – $41.27)
Most-billed visit code 99204
Established Patient
$95.94 typical visit price
range $17.21 – $134.61
Typical copayment $23.98 (range $4.30 – $33.65)
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.

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 1891323689. It was assigned to this individual provider in the NPPES registry on March 29, 2020.

Where is Robert Williams located?

Robert Williams practices at 130 Mason Farm Road Bioinformatics Building Cb# 7030, Chapel Hill, NC 27599. The listed phone number is (919) 966-2537.

What is Robert Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Robert Williams enrolled in Medicare?

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

Which organization bills Medicare for Robert Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Williams reassigns Medicare benefits to University Of North Carolina At Chapel Hill (South Boston, VA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Williams accept?

Health plans from Blue Cross and Blue Shield of NC list Robert Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Robert Williams was last updated on May 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.