KATHLEEN MARGARET STEPHANOS
NPI 1235438714
Emergency Medicine in Baltimore, MD
About Kathleen Margaret Stephanos NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHLEEN MARGARET STEPHANOS (NPI 1235438714) is an individual emergency medicine provider in Baltimore, Maryland, licensed in Maryland (D0093600) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS, is affiliated with University Of Maryland Medical Center, and maintains a secondary practice location in Rochester.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
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 and accepts Medicare assignment
Kathleen Margaret Stephanos 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.
Medicare Billing Reassignments
3Medicare enrollment records show Kathleen Stephanos reassigns Medicare billing to 3 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: University Of Maryland Pediatric Associates, PA
- 172 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 234 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 108 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 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Maryland Medical Center
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 Kathleen Stephanos's NPI number?
The NPI number for Kathleen Stephanos is 1235438714. It was assigned to this individual provider in the NPPES registry on March 23, 2011. The provider is also known as Kathleen Margaret Sanders.
Where is Kathleen Stephanos located?
Kathleen Stephanos practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (800) 492-5538.
What is Kathleen Stephanos's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Kathleen Stephanos enrolled in Medicare?
Yes. Kathleen Stephanos 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.
Which organizations bill Medicare for Kathleen Stephanos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Stephanos reassigns Medicare benefits to 3 organizations: University Of Maryland Pediatric Assoc PA (Baltimore, MD), University Of Maryland Emergency Medicine Associates, PA (Baltimore, MD) and University Of Maryland Midtown Health 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 Kathleen Stephanos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Kathleen Stephanos affiliated with any hospitals?
According to CMS data, Kathleen Stephanos is affiliated with University Of Maryland Medical Center.
When was this NPI record last updated?
The NPPES record for Kathleen Stephanos was last updated on March 22, 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.
# Kathleen Margaret Stephanos · NPI 1235438714
Emergency Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since March 23, 2011.
## Identity
- **NPI:** 1235438714 (Entity type: Individual)
- **Enumerated:** March 23, 2011
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D0093600 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 S GREENE ST, Baltimore, MD 21201-1544
- **Phone:** (800) 492-5538
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): University Of Maryland Pediatric Assoc PA (NPI 1174628580, Baltimore, MD); University Of Maryland Emergency Medicine Associates, PA (NPI 1144271743, Baltimore, MD); University Of Maryland Midtown Health Inc (NPI 1710347729, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** March 22, 2022
---
Source: [NPI Profile](https://npiprofile.com/npi/1235438714) · Data from the CMS NPPES public registry.