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DR. DAVID JAIHUN BYUN MD
NPI 1619409802
Radiology - Radiation Oncology in Hartford, CT

Active since March 28, 2017PECOS EnrolledAccepts Medicare Assignment
84.47/100
CMS Quality Rating
80 SEYMOUR ST, HARTFORD, CT 06106(860) 545-2803 Get Directions Write a Review

NPPES record last updated: February 25, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 25, 2025, Nov 4, 2022, Aug 9, 2022 and 1 more (4 updates tracked since 2017).

About Dr. David Jaihun Byun Md NPPES

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

DR. DAVID JAIHUN BYUN MD (NPI 1619409802) is an individual radiation oncology provider in Hartford, Connecticut, licensed in Connecticut (80229) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1619409802
Entity TypeIndividualMale
Primary Taxonomy2085R0001X
Provider Legal NameDR. DAVID JAIHUN BYUNCredential: MD
Location Address80 SEYMOUR STHartford, CT 06106-3315
Mailing Address80 Seymour StHartford, CT 06106-3315 · (860) 545-2803
Phone(860) 545-2803
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMarch 28, 2017
Last NPPES UpdateFebruary 25, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 25, 2025
✔ NPI 1619409802 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 CT · 80229✔ Licensed in NY · 314461
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.
80 SEYMOUR ST, Hartford, CT 06106
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

Dr. David Jaihun Byun Md 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 ID244566453
PECOS Enrollment IDI20250317003620
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.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Calculation of radiation therapy dose 77300
Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.
153 services26 patients
Ct guidance for insertion of radiation therapy fields 77014
CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.
77 services16 patients
Calculation of radiation therapy dose 77300
Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.
75 services15 patients
Ct guidance for insertion of radiation therapy fields 77014
CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.
49 services13 patients
Design and construction of complex radiation treatment device 77334
The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.
34 services23 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
27 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330214
Location550 First AvenueNew York, NY 10016 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06106 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
$183.10 typical visit price
range $60.82 – $183.10
Typical copayment $45.77 (range $15.20 – $45.77)
Most-billed visit code 99205
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
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.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality93.33
Promoting Interoperability100
Improvement Activities40
Cost54.91

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.

JESSICA MCEWAN CRNA
Nurse Anesthetist, Certified Registered
80 SEYMOUR ST
HARTFORD, CT 06106
Capitol Planning Region (860) 545-5000
CARLY DANIELLE RADCLIFFE
Physician Assistant (Medical)
80 SEYMOUR ST
HARTFORD, CT 06106
Capitol Planning Region (860) 545-5000
ELAINE LACANILAO CRNA
Nurse Anesthetist, Certified Registered
80 SEYMOUR ST
HARTFORD, CT 06106
Capitol Planning Region (860) 545-5000
MICHAEL BRIAN BANIK APRN
Nurse Practitioner (Critical Care Medicine)
80 SEYMOUR ST
HARTFORD, CT 06106
Capitol Planning Region (860) 545-5000
EMILY TRUEBIG
Physician Assistant
80 SEYMOUR ST
HARTFORD, CT 06106
Capitol Planning Region (203) 785-2353
AASYA KOLIA PA-C
Physician Assistant (Medical)
80 SEYMOUR ST
HARTFORD, CT 06106
Capitol Planning Region (860) 972-5022
YASSER A AL-BAGHDADI M.D.
Anesthesiology
80 SEYMOUR ST, ANESTHESIA DEPT
HARTFORD, CT 06106
Capitol Planning Region (860) 545-2117
JILLIAN DZIEDZIC CRNA
Nurse Anesthetist, Certified Registered
80 SEYMOUR ST
HARTFORD, CT 06106
Capitol Planning Region (860) 545-5000

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 David Byun's NPI number?

The NPI number for David Byun is 1619409802. It was assigned to this individual provider in the NPPES registry on March 28, 2017.

Where is David Byun located?

David Byun practices at 80 Seymour St, Hartford, CT 06106. The listed phone number is (860) 545-2803.

What is David Byun's specialty?

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

Is David Byun enrolled in Medicare?

Yes. David Byun 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.

Is David Byun affiliated with any hospitals?

According to CMS data, David Byun is affiliated with Nyu Langone Hospitals.

When was this NPI record last updated?

The NPPES record for David Byun was last updated on February 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.