ALYSSA DENNIS
NPI 1578029351
Nurse Practitioner - Acute Care in Baltimore, MD
About Alyssa Dennis NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSSA DENNIS (NPI 1578029351) is an individual acute care provider in Baltimore, Maryland, licensed in Maryland (R161544) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS, is affiliated with Sinai Hospital Of Baltimore, and is a graduate of Other (2018).
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)
Alyssa Dennis is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alyssa Dennis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: Shock Trauma Associates PA
- 541 clinicians in this Medicare group
Baltimore, MD 21223
- Reassigned Medicare billing, Maryland enrollment
- 664 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.
Sinai Hospital Of Baltimore
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21201 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Alyssa Dennis's NPI number?
The NPI number for Alyssa Dennis is 1578029351. It was assigned to this individual provider in the NPPES registry on February 16, 2019.
Where is Alyssa Dennis located?
Alyssa Dennis practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 328-8578.
What is Alyssa Dennis's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Alyssa Dennis enrolled in Medicare?
Yes. Alyssa Dennis is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alyssa Dennis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Dennis reassigns Medicare benefits to 2 organizations: Shock Trauma Associates, P.A. (Baltimore, MD) and Sinai Hospital Of Baltimore, Inc. (Baltimore, 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 Alyssa Dennis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alyssa Dennis affiliated with any hospitals?
According to CMS data, Alyssa Dennis is affiliated with Sinai Hospital Of Baltimore.
When was this NPI record last updated?
The NPPES record for Alyssa Dennis was last updated on February 16, 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.
# Alyssa Dennis · NPI 1578029351
Acute Care physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since February 16, 2019.
## Identity
- **NPI:** 1578029351 (Entity type: Individual)
- **Enumerated:** February 16, 2019
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** R161544 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 S GREENE ST, Baltimore, MD 21201-1590
- **Phone:** (410) 328-8578
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Shock Trauma Associates, P.A. (NPI 1679512909, Baltimore, MD); Sinai Hospital Of Baltimore, Inc. (NPI 1528716115, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** February 16, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1578029351) · Data from the CMS NPPES public registry.