HENRY S SUN M.D.
NPI 1609845817
Internal Medicine - Interventional Cardiology in Westminster, MD
About Henry S Sun M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HENRY S SUN M.D. (NPI 1609845817) is an individual interventional cardiology provider in Westminster, Maryland, licensed in Maryland (D0063130) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Sinai Hospital Of Baltimore, and maintains a secondary practice location in Towson.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Henry S Sun M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Henry Sun reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Eldersburg, MD 21784
- Reassigned Medicare billing, Maryland enrollment
- 664 clinicians in this Medicare group
Towson, MD 21204
- Reassigned Medicare billing, Maryland enrollment
- 501 clinicians in this Medicare group
Perryville, MD 21903
- Reassigned Medicare billing, Maryland enrollment
- 512 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 12
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sinai Hospital Of Baltimore
Acute Care Hospitals · Baltimore, MDCarroll Hospital Center
Acute Care Hospitals · Westminster, MDNorthwest Hospital Center
Acute Care Hospitals · Randallstown, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21157 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WESTMINSTER, MD 21157
WESTMINSTER, MD 21157
WESTMINSTER, MD 21157
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 Henry Sun's NPI number?
The NPI number for Henry Sun is 1609845817. It was assigned to this individual provider in the NPPES registry on March 17, 2006.
Where is Henry Sun located?
Henry Sun practices at 193 Stoner Ave Ste 340, Westminster, MD 21157. The listed phone number is (410) 601-9355.
What is Henry Sun's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Henry Sun enrolled in Medicare?
Yes. Henry Sun is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Henry Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Henry Sun reassigns Medicare benefits to 3 organizations: Sinai Hospital Of Baltimore Inc (Eldersburg, MD), University Of Maryland St. Joseph Medical Group, LLC (Towson, MD) and Union Hospital Of Cecil County, Inc (Perryville, MD). 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 Henry Sun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Henry Sun affiliated with any hospitals?
According to CMS data, Henry Sun is affiliated with Sinai Hospital Of Baltimore, Carroll Hospital Center and Northwest Hospital Center.
When was this NPI record last updated?
The NPPES record for Henry Sun was last updated on May 14, 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.
# Henry S Sun, M.D. · NPI 1609845817
Interventional Cardiology physician in Westminster, Maryland. Individual provider, active in the CMS NPPES registry since March 17, 2006.
## Identity
- **NPI:** 1609845817 (Entity type: Individual)
- **Enumerated:** March 17, 2006
- **Primary specialty:** Internal Medicine - Interventional Cardiology · taxonomy 207RI0011X
- **State license:** D0063130 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 193 STONER AVE STE 340, Westminster, MD 21157-5680
- **Phone:** (410) 601-9355 · **Fax:** (410) 601-8704
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Sinai Hospital Of Baltimore Inc (NPI 1568225282, Eldersburg, MD); University Of Maryland St. Joseph Medical Group, LLC (NPI 1770836785, Towson, MD); Union Hospital Of Cecil County, Inc (NPI 1639920648, Perryville, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 2001
## Record status
- **NPPES last updated:** May 14, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1609845817) · Data from the CMS NPPES public registry.