Doctor profile · Federal record
Dr. Stewart Karr, MD
Diagnostic Radiology Physician (CMS: Interventional Radiology) · Silver Spring, MD
- NPI 1477567022
- Accepts Medicare
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2121 Medical Park Drive, Suite 3
Silver Spring, MD 20902
(501) 681-3003
fax (301) 681-5868 - Mailing address
-
4718 Carr Drive, Per Se Technologies Ellie Conley
Fredericksburg, VA 22408
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- May 7, 2008
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Maryland #D0035868
- Medicaid
- MD #152651100
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477567022. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,140
Distinct HCPCS
10
Medicare allowed
$82,843
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
71045 |
X-ray of chest, 1 view | 602 | 503 | $10 | |
70450 |
Ct scan head or brain without contrast | 261 | 257 | $44 | |
71046 |
X-ray of chest, 2 views | 213 | 208 | $11 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 111 | 109 | $96 | |
74176 |
Ct scan of abdomen and pelvis without contrast | 95 | 94 | $92 | |
71260 |
Ct scan of chest with contrast | 67 | 67 | $60 | |
71250 |
Ct scan of chest without contrast | 57 | 56 | $56 | |
74230 |
Imaging for evaluation of swallowing function | 57 | 56 | $27 | |
74018 |
X-ray of abdomen, 1 view | 56 | 49 | $10 | |
32555 |
Aspiration of fluid from chest cavity using imaging guidance | 51 | 42 | $113 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 510. This provider delivers 4.2× the peer median.Open Payments
Industry payments received
All-time total
$71
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Cook Medical LLC | 1 | $70.57 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Stewart Karr's medical specialty?
Dr. Stewart Karr practices Diagnostic Radiology Physician in Silver Spring, MD.
Where does Dr. Stewart Karr practice?
Dr. Stewart Karr practices at 2121 Medical Park Drive, Silver Spring, MD 20902. Office phone: 5016813003.
What is Dr. Stewart Karr's NPI?
Dr. Stewart Karr's National Provider Identifier (NPI) is 1477567022, issued by NPPES.
Does Dr. Stewart Karr accept Medicare assignment?
Yes. Dr. Stewart Karr accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stewart Karr commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.