Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Margaret A Lynch Nyhan, MD

Individual provider Diagnostic Radiology Physician · NPI 1083658959

Margaret A Lynch Nyhan, MD practises Diagnostic Radiology in Baltimore, Maryland. Qualified in 1978, 48 years ago. Practices with Advanced Radiology P A, a 155-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
48
Licensed in
MD
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

7253 Ambassador Rd
Baltimore, MD 21244-2710 Not confirmed with CMS for 12 years — call before visiting
Phone: (443) 436-1116
Fax: (443) 436-1256
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence D0033666 (MD)
Vascular & Interventional Radiology Physician Taxonomy 2085R0204X · Licence D0033666 (MD)

Record details

NPI number1083658959
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2006
Last updated in NPPESJanuary 15, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Group practice Advanced Radiology P A — 155 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations30 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients2,810
Services billed 23,164 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Advanced Radiology P A

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 155 clinicians in the practice; 12 are shown here.

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