EUGENE HO-JOON CHUNG M.D.
NPI 1326087131
Internal Medicine - Clinical Cardiac Electrophysiology in Boston, MA
About Eugene Ho-joon Chung M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EUGENE HO-JOON CHUNG M.D. (NPI 1326087131) is an individual clinical cardiac electrophysiology provider in Boston, Massachusetts, licensed in Michigan (4301113344) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Eugene Ho-joon Chung 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.
Medicare Billing Reassignments
5Medicare enrollment records show Eugene Chung reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Oak Bluffs, MA 02557
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1194866210 (Massachusetts)
- 184 clinicians in this Medicare group
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 141 clinicians in this Medicare group
Grand Rapids, MI 49546
- Reassigned Medicare billing, Michigan enrollment
- 685 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 34
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAMartha's Vineyard Hospital Inc
Critical Access Hospitals · Oak Bluffs, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Eugene Chung's NPI number?
The NPI number for Eugene Chung is 1326087131. It was assigned to this individual provider in the NPPES registry on June 6, 2006.
Where is Eugene Chung located?
Eugene Chung practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 724-4500.
What is Eugene Chung's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.
Is Eugene Chung enrolled in Medicare?
Yes. Eugene Chung 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.
Which organizations bill Medicare for Eugene Chung's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eugene Chung reassigns Medicare benefits to 5 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Martha's Vineyard Hospital, Inc. (Oak Bluffs, MA), Regents Of The University Of Michigan (Ann Arbor, MI) and Metropolitan Hospital (Grand Rapids, MI). 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 Eugene Chung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Eugene Chung accept?
Health plans from Priority Health and Taro Health list Eugene Chung as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Eugene Chung affiliated with any hospitals?
According to CMS data, Eugene Chung is affiliated with North Shore Medical Center -, Massachusetts General Hospital, Newton-Wellesley Hospital, Brigham And Women's Hospital and Martha's Vineyard Hospital Inc.
When was this NPI record last updated?
The NPPES record for Eugene Chung 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.