DR. WILLIAM JR. SMALL (M.D.) – Radiation Oncology Physician, NPI 1336115013

DR. WILLIAM JR. SMALL (M.D.) is a healthcare provider. based in Naperville, Illinois. specializing in RADIATION ONCOLOGY. They hold the professional credentials M.D.. They hold a License No. 036084648 (IL). The NPI Number for DR. WILLIAM JR. SMALL (M.D.) is 1336115013

Main info

Male
36 Years Of Experience
Accepts Medicare Assignment
Name
DR. WILLIAM JR. SMALL (M.D.)
NPI
1336115013
Phone
(630) 718-0200
Address
1730 PARK ST
Enumeration Date
23 February 2006
Last Update Date
10 June 2021

Doctor Profile

Medical School Name
NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Secondary Phone
7082169000
Graduation Year
1990 (36 years ago)
PAC ID
3173535226
Group Practice PAC ID
3779488903
Professional Enrollment ID
I20060608000167
Address ID
IL601533328MA2160XAVEX400

Contacts

Secure Messaging
wsmall54567@direct.luhs.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

312 RADIATION ONCOLOGY in IL

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Provider Addresses for DR. WILLIAM JR. SMALL (M.D.)

  • 1730, Park Street, Naperville, DuPage County, Illinois, 60563, United States

    SUITE 101

    NAPERVILLE, IL 605632688

    Phone: (630) 718-0200

    Fax: (630) 718-0900

    Type: Mailing

  • Northwestern Memorial Hospital, 251, East Huron Street, Magnificent Mile, Near North Side, Chicago, Cook County, Illinois, 60611, United States

    GALTER PAVILLION

    CHICAGO, IL 606112908

    Phone: (312) 926-2520

    Fax: (312) 926-6524

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 38 Open Payments records for all available years, with a total value of $10,549.

Total Amount is formed as General ($10,549) + Research ($0) + Ownership ($0) = $10,549.

Last reported payment date: 2024-11-29 • Largest payer in this snapshot: Carl Zeiss Meditec USA, Inc. ($4,404).

Total Amount

$10,549

General + Research + Ownership

Payments

38

Total payment records

General Amount

$10,549

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-29

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2006-06-08

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20060608000167IRadiation OncologyILTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
G6002Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy29724$0
77014Ct guidance for insertion of radiation therapy fields27433$0
77300Calculation of radiation therapy dose15636$0
77427Radiation treatment management, 5 treatment sessions13233$0
77334Design and construction of complex radiation treatment device12131$0
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Insurance plans in this area (ZIP 60563)

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Provider's Procedures

DR. WILLIAM JR. SMALL (M.D.) performs procedures in RADIATION ONCOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
RADIATION ONCOLOGYIL77263Management of radiation therapy, complex3938
RADIATION ONCOLOGYIL77300Calculation of radiation therapy dose19330
RADIATION ONCOLOGYIL77427Radiation treatment management, 5 treatments12030

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3779488903View full group profile

Reviews

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Frequently asked questions

What is the registry number for DR. WILLIAM JR. SMALL (M.D.)?
The registry entry for DR. WILLIAM JR. SMALL (M.D.) shows NPI 1336115013.
Should I treat DR. WILLIAM JR. SMALL (M.D.) as an active provider?
Patients and plans typically see DR. WILLIAM JR. SMALL (M.D.) as active in the national extract.
What services align with DR. WILLIAM JR. SMALL (M.D.)'s listing?
DR. WILLIAM JR. SMALL (M.D.)'s public classification highlights Radiation Oncology Physician. Clinical services aligned with this taxonomy classification.
Is DR. WILLIAM JR. SMALL (M.D.) tied to Naperville, Illinois?
If you are local to Naperville, Illinois, DR. WILLIAM JR. SMALL (M.D.) may be relevant to your search.
Can I export DR. WILLIAM JR. SMALL (M.D.)'s record?
You can download the official NPPES record; we summarize key fields for readability.

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