STEPHEN YANG M.D.
NPI 1164452728
Surgery in Baltimore, MD
About Stephen Yang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN YANG M.D. (NPI 1164452728) is an individual surgery provider in Baltimore, Maryland, licensed in Maryland (D46324) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Virginia Commonwealth University, School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Stephen Yang M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Stephen Yang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- 4,483 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 7
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.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDTidalhealth Peninsula Regional, Inc
Acute Care Hospitals · Salisbury, MDJohns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21224 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
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 Stephen Yang's NPI number?
The NPI number for Stephen Yang is 1164452728. It was assigned to this individual provider in the NPPES registry on July 3, 2006.
Where is Stephen Yang located?
Stephen Yang practices at 4940 Eastern Ave, Baltimore, MD 21224. The listed phone number is (410) 614-3891.
What is Stephen Yang's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Stephen Yang enrolled in Medicare?
Yes. Stephen Yang is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Stephen Yang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Yang reassigns Medicare benefits to Johns Hopkins University (Baltimore, MD). The 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 Stephen Yang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Stephen Yang affiliated with any hospitals?
According to CMS data, Stephen Yang is affiliated with Johns Hopkins Hospital, The, Tidalhealth Peninsula Regional, Inc and Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Stephen Yang was last updated on September 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Stephen Yang, M.D. · NPI 1164452728
Surgery physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1164452728 (Entity type: Individual)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** D46324 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 4940 EASTERN AVE, Baltimore, MD 21224-2735
- **Phone:** (410) 614-3891
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Johns Hopkins University (NPI 1306810619, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Virginia Commonwealth University, School Of Medicine, class of 1984
## Record status
- **NPPES last updated:** September 23, 2022
- **Other identifiers:** Medicaid 299711800 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1164452728) · Data from the CMS NPPES public registry.