DR. MARK M. YUN MD
NPI 1326538687
Internal Medicine - Rheumatology in Sturbridge, MA
About Dr. Mark M. Yun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK M. YUN MD (NPI 1326538687) is an individual rheumatology provider in Sturbridge, Massachusetts, licensed in Massachusetts (1015976) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS, is affiliated with Umass Memorial Health - Harrington Hospital, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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. Mark M. Yun 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.
Areas of Expertise CMS Part B claims 3
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Health - Harrington Hospital
Acute Care Hospitals · Southbridge, MAUmass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01566 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STURBRIDGE, MA 01566
STURBRIDGE, MA 01566
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 Mark Yun's NPI number?
The NPI number for Mark Yun is 1326538687. It was assigned to this individual provider in the NPPES registry on May 12, 2018.
Where is Mark Yun located?
Mark Yun practices at 198 Charlton Rd, Sturbridge, MA 01566. The listed phone number is (508) 765-7878.
What is Mark Yun's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Mark Yun enrolled in Medicare?
Yes. Mark Yun 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.
What insurance does Mark Yun accept?
Health plans from Anthem Blue Cross and Blue Shield list Mark Yun 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 Mark Yun affiliated with any hospitals?
According to CMS data, Mark Yun is affiliated with Umass Memorial Health - Harrington Hospital and Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Mark Yun was last updated on October 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Mark M. Yun, MD · NPI 1326538687
Rheumatology physician in Sturbridge, Massachusetts. Individual provider, active in the CMS NPPES registry since May 12, 2018.
## Identity
- **NPI:** 1326538687 (Entity type: Individual)
- **Enumerated:** May 12, 2018
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 1015976 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 198 CHARLTON RD, Sturbridge, MA 01566-1571
- **Phone:** (508) 765-7878
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** October 3, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1326538687) · Data from the CMS NPPES public registry.