NPPES file of Aug 9, 2026

Kathleen Margaret Stephanos

Emergency Medicine Physician · Baltimore, MD

Kathleen Margaret Stephanos is an emergency medicine physician with a practice address in Baltimore, Maryland, and NPI 1235438714, issued on Mar 23, 2011. Check the license (Maryland D0093600, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235438714
Name
Kathleen Margaret Stephanos
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
D0093600 MD
285567 NY
Self-reported in NPPES; status is on the state search
Practice location
22 S Greene St, Baltimore, MD 21201
Phone
(800) 492-5538
Enumerated
Mar 23, 2011
Record last updated
Mar 22, 2022
Medicare enrollment
Enrolled (PECOS I20220524000624); accepts Medicare assignment
Medical or professional school
University Of Maryland School Of Medicine, 2011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 22 S Greene St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bizhan Aarabi, MDNeurological Surgery Physician1174578876
  2. Elsadig Abdalla, MDStudent in an Organized Health Care Education/Training Program1073364477
  3. Ehssan AbdolalizadehStudent in an Organized Health Care Education/Training Program1093653271
  4. Mohammad Abdulelah, MDStudent in an Organized Health Care Education/Training Program1114650108
  5. Leenah AbdulgaderStudent in an Organized Health Care Education/Training Program1386323301
  6. Ifedayo Abiola-Matthew, CRNPAcute Care Nurse Practitioner1033781117

Verify Kathleen Margaret Stephanos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0093600
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. University OF Maryland Emergency Medicine Associates PABaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kathleen Margaret Stephanos among 1,190 emergency medicine physician records in Maryland

Kathleen Margaret Stephanos is one of 1,190 emergency medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 61% of them.

  • NPI issued2011 · 61% of these records are older, 35% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated2011 · median 2010 among the 571 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

505 emergency medicine physician records list a practice address in Baltimore

They are 505 of the 35,183 NPPES records with a practice address in Baltimore, and 1,190 emergency medicine physician records in Maryland.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Charles Bergman, M.D.Baltimore, MD 212011962468306
  2. Michael Bond, M.D.Baltimore, MD 212011184665739
  3. Laura Bontempo, MDBaltimore, MD 212011356330104
  4. Brian BrowneBaltimore, MD 212011932152790
  5. Rose ChasmBaltimore, MD 212011528002359
  6. Marcia CortBaltimore, MD 212011487698775
  7. Wade Gaasch, M.D.Baltimore, MD 212011407898273
  8. Katherine GrundmannBaltimore, MD 212011487696258

Common questions

What is Kathleen Margaret Stephanos's NPI number?

Kathleen Margaret Stephanos's National Provider Identifier (NPI) is 1235438714, issued on Mar 23, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Margaret Stephanos located?

The NPPES record lists a practice address at 22 S Greene St, Baltimore, MD, 21201. Phone: (800) 492-5538. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Margaret Stephanos's license?

NPPES lists Maryland license number D0093600, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.