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TERENCE WILLIAMS M.D.
NPI 1003939133
Radiology - Radiation Oncology in Duarte, CA

Active since April 06, 2007PECOS EnrolledAccepts Medicare Assignment
99.12/100
CMS Quality Rating
1500 DUARTE RD, DUARTE, CA 91010(626) 256-4673 Get Directions Write a Review

NPPES record last updated: May 13, 2021. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Terence Williams M.d. NPPES

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

TERENCE WILLIAMS M.D. (NPI 1003939133) is an individual radiation oncology provider in Duarte, California, licensed in California (C171532) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1003939133
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameTERENCE WILLIAMSCredential: M.D.
Location Address1500 DUARTE RDDuarte, CA 91010-3012
Mailing AddressPo Box 512185Los Angeles, CA 90051-0185
Phone(626) 256-4673
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateApril 6, 2007
Last NPPES UpdateMay 13, 2021
NPPES CertifiedMay 13, 2021
✔ NPI 1003939133 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Licenses✔ Licensed in CA · C171532✔ Licensed in OH · 35.097376
Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

1500 DUARTE RD, Duarte, CA 91010
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Terence Williams M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729258074
PECOS Enrollment IDI20210217001617
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 91010 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

99.12/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.23
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

DR. JULIO E. GARCIA-AGUILAR MD
Colon & Rectal Surgery
1500 DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
MR. CARLOS GARBEROGLIO MD
Surgery (Surgical Oncology)
1500 DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
CALIFORNIA CANCER SPECIALISTS MEDICAL GROUP INC
Anesthesiology
1500 DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
MS. LAURA ANALIA DORR-UYEMURA R.D.
Dietitian, Registered
1500 DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 256-4673
MS. JULIE ANN SCHOLLER R.D.
Dietitian, Registered
1500 DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 359-8111
MS. SALLY JILL PATAKY R.D.
Dietitian, Registered
1500 DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 256-4673
MS. SEE-LUN CECILIA LAU RPH, BCOP
Pharmacist (Oncology)
1500 DUARTE RD, DEPARTMENT OF PHARMACY SERVICES
DUARTE, CA 91010
Los Angeles County (626) 256-4673
LAURA BOURDEANU NP
Nurse Practitioner
1500 DUARTE RD
DUARTE, CA 91010
Los Angeles County (626) 256-4673

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 Terence Williams's NPI number?

The NPI number for Terence Williams is 1003939133. It was assigned to this individual provider in the NPPES registry on April 6, 2007.

Where is Terence Williams located?

Terence Williams practices at 1500 Duarte Rd, Duarte, CA 91010. The listed phone number is (626) 256-4673.

What is Terence Williams's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Terence Williams enrolled in Medicare?

Yes. Terence Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Terence Williams was last updated on May 13, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.