DR. CATHERINE S. HWANG (MD) – Radiation Oncology Physician, NPI 1043496193

DR. CATHERINE S. HWANG (MD) is a healthcare provider. based in Orlando, Florida. specializing in RADIATION ONCOLOGY. They hold the professional credentials MD. They hold a License No. 51430 (WI). The NPI Number for DR. CATHERINE S. HWANG (MD) is 1043496193

Main info

Female
23 Years Of Experience
Accepts Medicare Assignment
Name
DR. CATHERINE S. HWANG (MD)
NPI
1043496193
Phone
(407) 303-2030
Address
2501 N ORANGE AVE STE 182
Enumeration Date
18 January 2008
Last Update Date
28 September 2018

Doctor Profile

Medical School Name
NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Secondary Phone
4072002355
Graduation Year
2003 (23 years ago)
PAC ID
0547332074
Group Practice PAC ID
0042383200
Professional Enrollment ID
I20141104001952
Address ID
FL327517229MA900XXPLXX301
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience68
Completeness75
Years active:18State licenses:3Digital endpointsOther names

494 RADIATION ONCOLOGY in FL

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Provider Addresses for DR. CATHERINE S. HWANG (MD)

  • 182, North Orange Avenue, Orlando, Orange County, Florida, 32801, United States

    ORLANDO, FL 328044675

    Phone: (407) 303-2030

    Type: Mailing

  • Florida Hospital Orlando Emergency Room, 601, Rollins Street, Orlando, Orange County, Florida, 32803, United States

    RADIATION ONCOLOGY

    ORLANDO, FL 328031248

    Phone: (407) 303-2030

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 2 Open Payments records for all available years, with a total value of $145.

Total Amount is formed as General ($145) + Research ($0) + Ownership ($0) = $145.

Last reported payment date: 2024-12-16 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($115).

Total Amount

$145

General + Research + Ownership

Payments

2

Total payment records

General Amount

$145

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-16

Latest reported date

Top Companies

Largest payers in this snapshot

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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: 2014-11-04

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
I20141104001952IRadiation OncologyFLTBD

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
77014Ct guidance for insertion of radiation therapy fields69698$0
77334Design and construction of complex radiation treatment device27894$0
77300Calculation of radiation therapy dose25190$0
77427Radiation treatment management, 5 treatment sessions23186$0
99214Established patient office or other outpatient visit, 30-39 minutes182145$0
View full utilization report →

Insurance plans in this area (ZIP 32804)

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Provider's Procedures

DR. CATHERINE S. HWANG (MD) performs procedures in RADIATION ONCOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
RADIATION ONCOLOGYFL77263Management of radiation therapy, complex9387
RADIATION ONCOLOGYFL77300Calculation of radiation therapy dose24074

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: 0042383200View full group profile
NameSpecialtyState
Diagnostic RadiologyFL
Diagnostic RadiologyFL
Diagnostic RadiologyFL
Diagnostic RadiologyFL
Diagnostic RadiologyMI
Diagnostic RadiologyPA
Diagnostic Radiology, Interventional RadiologyFL
Radiation OncologyFL
Diagnostic RadiologyFL
Diagnostic RadiologyFL

Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. CATHERINE S. HWANG (MD)?
DR. CATHERINE S. HWANG (MD) — NPI 1043496193 — is the standard way to identify this listing.
Does CMS list DR. CATHERINE S. HWANG (MD) as active?
Yes — DR. CATHERINE S. HWANG (MD) is active in the NPI listing used on this page.
What is DR. CATHERINE S. HWANG (MD) best known for clinically?
Directory data describes DR. CATHERINE S. HWANG (MD) with Radiation Oncology Physician. Clinical services aligned with this taxonomy classification.
What area does DR. CATHERINE S. HWANG (MD) serve?
DR. CATHERINE S. HWANG (MD)'s listing highlights Orlando, Florida; more addresses can appear in NPPES.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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