SETH SHAY MARTIN
NPI 1861668154
Internal Medicine - Cardiovascular Disease in Baltimore, MD
About Seth Shay Martin NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SETH SHAY MARTIN (NPI 1861668154) is an individual cardiovascular disease provider in Baltimore, Maryland, licensed in Maryland (D72547) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (2008).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Seth Shay Martin is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Seth Martin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21287
- 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDJohns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21287 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 21287
BALTIMORE, MD 21287
BALTIMORE, MD 21287
BALTIMORE, MD 21287
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 Seth Martin's NPI number?
The NPI number for Seth Martin is 1861668154. It was assigned to this individual provider in the NPPES registry on May 6, 2008.
Where is Seth Martin located?
Seth Martin practices at 600 N Wolfe St Blalock 910, Baltimore, MD 21287. The listed phone number is (410) 614-1132.
What is Seth Martin's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Seth Martin enrolled in Medicare?
Yes. Seth Martin is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Seth Martin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Seth Martin 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 Seth Martin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Seth Martin affiliated with any hospitals?
According to CMS data, Seth Martin is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Seth Martin was last updated on July 21, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Seth Shay Martin · NPI 1861668154
Cardiovascular Disease physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 6, 2008.
## Identity
- **NPI:** 1861668154 (Entity type: Individual)
- **Enumerated:** May 6, 2008
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** D72547 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 N WOLFE ST, BLALOCK 910, Baltimore, MD 21287-0005
- **Phone:** (410) 614-1132
## 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 1023018413, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 2008
## Record status
- **NPPES last updated:** July 21, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1861668154) · Data from the CMS NPPES public registry.