DR. BYUNGYOL CHUN MD
NPI 1356337141
Obstetrics & Gynecology in Woburn, MA
About Dr. Byungyol Chun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BYUNGYOL CHUN MD (NPI 1356337141) is an individual obstetrics & gynecology provider in Woburn, Massachusetts, licensed in Massachusetts (78137) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Winchester Hospital, and is a graduate of Ohio State University College Of Medicine (1990).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 15
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
Dr. Byungyol Chun 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.
Medicare Billing Reassignments
3Medicare enrollment records show Byungyol Chun reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Woburn, MA 01801
- Reassigned Medicare billing, Massachusetts enrollment
Woburn, MA 01801
- Reassigned Medicare billing, Massachusetts enrollment
- 16 clinicians in this Medicare group
Worcester, MA 01608
- Reassigned Medicare billing, Massachusetts enrollment
- 197 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Winchester Hospital
Acute Care Hospitals · Winchester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01801 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WOBURN, MA 01801
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 Byungyol Chun's NPI number?
The NPI number for Byungyol Chun is 1356337141. It was assigned to this individual provider in the NPPES registry on September 27, 2005.
Where is Byungyol Chun located?
Byungyol Chun practices at 800 W Cummings Park Ste 2250, Woburn, MA 01801. The listed phone number is (781) 404-6923.
What is Byungyol Chun's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Byungyol Chun enrolled in Medicare?
Yes. Byungyol Chun 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 Byungyol Chun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Byungyol Chun reassigns Medicare benefits to 3 organizations: Byc Healthcare Inc (Woburn, MA), New England Womens Healthcare (Woburn, MA) and Saint Vincent Physician Services, Inc. (Worcester, MA). 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 Byungyol Chun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Byungyol Chun accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Byungyol Chun 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 Byungyol Chun affiliated with any hospitals?
According to CMS data, Byungyol Chun is affiliated with Winchester Hospital.
When was this NPI record last updated?
The NPPES record for Byungyol Chun was last updated on May 7, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Byungyol Chun, MD · NPI 1356337141
Obstetrics & Gynecology physician in Woburn, Massachusetts. Individual provider, active in the CMS NPPES registry since September 27, 2005.
## Identity
- **NPI:** 1356337141 (Entity type: Individual)
- **Enumerated:** September 27, 2005
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 78137 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 W CUMMINGS PARK STE 2250, Woburn, MA 01801-7034
- **Phone:** (781) 404-6923 · **Fax:** (781) 537-6916
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Byc Healthcare Inc (NPI 1336504166, Woburn, MA); New England Womens Healthcare (NPI 1881120202, Woburn, MA); Saint Vincent Physician Services, Inc. (NPI 1013997329, Worcester, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University College Of Medicine, class of 1990
## Record status
- **NPPES last updated:** May 7, 2019
- **Other identifiers:** Other 599880; Other 2600216; Medicaid 30200537 (NH); and 12 more
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Source: [NPI Profile](https://npiprofile.com/npi/1356337141) · Data from the CMS NPPES public registry.