1. Home
  2. Directory
  3. Connecticut
  4. New Haven
  5. Internal Medicine
  6. NPI Profile

DR. SUN-JOO JANG MD, PHD
NPI 1659900595
Internal Medicine in New Haven, CT

Active since April 03, 2020PECOS Enrolled
20 YORK ST, NEW HAVEN, CT 06510(781) 888-5542 Get Directions Write a Review

NPPES record last updated: September 28, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Sun-joo Jang Md, Phd NPPES

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

DR. SUN-JOO JANG MD, PHD (NPI 1659900595) is an individual internal medicine provider in New Haven, Connecticut, licensed in Connecticut (75809) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Bridgeport, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1659900595
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. SUN-JOO JANGCredential: MD, PHD
Location Address20 YORK STNew Haven, CT 06510-3220
Mailing Address20 York StNew Haven, CT 06510-3220 · (781) 888-5542 · Fax (203) 384-4294
Phone(781) 888-5542
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateApril 3, 2020
Last NPPES UpdateSeptember 28, 2023
NPPES CertifiedSeptember 28, 2023
✔ NPI 1659900595 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CT · 75809
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
20 YORK ST, New Haven, CT 06510
Open in Google Maps ↗

Other Names 1

Other Name (5)Dr. Sun Joo Jang Md, Phd

Secondary Practice Location 1

Location 1267 Grant StBridgeport, CT 06610-2805 · Phone (781) 888-5542

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sun-joo Jang Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID941624134
PECOS Enrollment IDI20231019002492
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 Reassignments

3

Medicare enrollment records show Sun-joo Jang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mill Hill Medical Consultants Inc
Same address
Hospitalist
20 YORK ST, CB 2041
New Haven, CT 06510
  • Reassigned Medicare billing, Connecticut enrollment
  • Medicare enrollment name: Northeast Medical Group Inc
  • 1,824 clinicians in this Medicare group
NPI 1952624769 (203) 688-4741
Uconn Health Community Network Medical Group, Inc.
19 mi
Family Medicine
64 ROBBINS ST
Waterbury, CT 06708
  • Reassigned Medicare billing, Connecticut enrollment
  • 152 clinicians in this Medicare group
NPI 1548119522 (203) 573-7280
Prospect Ct Medical Foundation, Inc.
39 mi
Family Medicine
71 HAYNES ST, MILLER BLDG., FLOOR G
Manchester, CT 06040
  • Reassigned Medicare billing, Connecticut enrollment
  • 422 clinicians in this Medicare group
NPI 1144677568 (860) 533-2981

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 06510 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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.

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.

AUDREY P SENIOR APRN
Nurse Practitioner (Family)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-5860
DR. YEISID F FIGUEREDO M.D.
Pediatrics (Neonatal-Perinatal Medicine)
20 YORK ST, DEPT OF NEONATOLOGY
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2320
YALE NEW HAVEN HOSPITAL
Durable Medical Equipment & Medical Supplies (Customized Equipment)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2046
TAYLOR KINGSTON
Dietitian, Registered
20 YORK ST, FOOD AND NUTRITION EPB806
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-9185
DR. TRAVIS DANIEL BONTRAGER MD
Hospitalist
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-1734
TERESA JOSEPH D.O.
Internal Medicine (Nephrology)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 737-8894
MR. BRAD ST. MARTIN MD
Obstetrics & Gynecology
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
BERNADETTE BIMONTE-HACKETT LCSW
Social Worker (Clinical)
20 YORK ST, SOCIAL WORK EP10-635
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-5161

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 Sun-joo Jang's NPI number?

The NPI number for Sun-joo Jang is 1659900595. It was assigned to this individual provider in the NPPES registry on April 3, 2020. The provider is also known as Dr. Sun Joo Jang MD, Phd.

Where is Sun-joo Jang located?

Sun-joo Jang practices at 20 York St, New Haven, CT 06510. The listed phone number is (781) 888-5542.

What is Sun-joo Jang's specialty?

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

Is Sun-joo Jang enrolled in Medicare?

Yes. Sun-joo Jang is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sun-joo Jang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sun-joo Jang reassigns Medicare benefits to 3 organizations: Mill Hill Medical Consultants Inc (New Haven, CT), Uconn Health Community Network Medical Group, Inc. (Waterbury, CT) and Prospect Ct Medical Foundation, Inc. (Manchester, CT). Each 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 Sun-joo Jang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sun-joo Jang was last updated on September 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.