Doctor profile · Federal record
Dr. Margaret Lynch Nyhan, MD
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Vascular & Interventional Radiology Physician · Baltimore, MD
- NPI 1083658959
- Accepts Medicare
- 48 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
7253 Ambassador RD
Baltimore, MD 212442710
(443) 436-1116
fax (443) 436-1256
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- January 15, 2014
- Year of graduation
- 1978 — 48 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Maryland #D0033666
- Medicaid
- MD #314951000
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083658959. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
21,400
Distinct HCPCS
10
Medicare allowed
$232,430
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 18,660 | 217 | $0 | |
77080 |
Dxa bone density measurement of hip, pelvis, spine | 326 | 326 | $42 | |
71250 |
Ct scan of chest without contrast | 200 | 200 | $144 | |
71046 |
X-ray of chest, 2 views | 184 | 184 | $37 | |
77081 |
Dxa bone density measurement of forearm, finger, hand, or foot | 158 | 158 | $34 | |
71045 |
X-ray of chest, 1 view | 151 | 144 | $9 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 83 | 83 | $342 | |
32555 |
Aspiration of fluid from chest cavity using imaging guidance | 74 | 63 | $113 | |
75571 |
Ct scan of heart with evaluation of blood vessel calcium | 74 | 74 | $113 | |
71260 |
Ct scan of chest with contrast | 64 | 64 | $145 |
In context: peer comparison
Among 175 peers in Baltimore Diagnostic Radiology Physician, average services per provider: 377. This provider delivers 57× the peer median.Frequently asked questions
What is Dr. Margaret Lynch Nyhan's medical specialty?
Dr. Margaret Lynch Nyhan practices Diagnostic Radiology Physician in Baltimore, MD.
Where does Dr. Margaret Lynch Nyhan practice?
Dr. Margaret Lynch Nyhan practices at 7253 Ambassador RD, Baltimore, MD 212442710. Office phone: 4434361116.
What is Dr. Margaret Lynch Nyhan's NPI?
Dr. Margaret Lynch Nyhan's National Provider Identifier (NPI) is 1083658959, issued by NPPES.
Does Dr. Margaret Lynch Nyhan accept Medicare assignment?
Yes. Dr. Margaret Lynch Nyhan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Lynch Nyhan commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Dxa bone density measurement of hip, pelvis, spine (HCPCS 77080); Ct scan of chest without contrast (HCPCS 71250). Source: CMS Medicare Physician & Other Practitioners file.