Physician Profile
Andrew Keenan, M.D.
Unclaimed ProfileAbout Dr. Keenan
Andrew Keenan, M.D. is a healthcare provider in Largo, MD specializing in nuclear medicine. Andrew trained at George Washington University School of Medicine, graduating in 1976. Andrew is also listed as specializing in internal medicine. Medicare claims data shows Andrew provided 1,076 services to 1,001 patients. The services billed most often include nuclear medicine study from skull base to mid-thigh with ct scan, nuclear medicine study of lung ventilation and circulation, and nuclear medicine studies of heart muscle at rest and with stress and spect.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (301) 677-2149
- Email not available
Practice Locations
901 HARRY S TRUMAN DR N
Largo, MD 20774
Procedures Most Often Billed to Medicare
1,076 services · 1,001 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Nuclear medicine study from skull base to mid-thigh with ct scan | Imaging | 78815 |
301 | More often than most peers in NUCLEAR MEDICINE |
| Nuclear medicine study of lung ventilation and circulation | Imaging | 78582 |
280 | More than most peers in NUCLEAR MEDICINE |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
99 | More often than most peers in NUCLEAR MEDICINE |
| Nuclear medicine study of bone and/or joint whole body | Imaging | 78306 |
76 | More often than most peers in NUCLEAR MEDICINE |
| Nuclear medicine study of liver and bile duct system with use of drugs | Imaging | 78227 |
66 | More than most peers in NUCLEAR MEDICINE |
| Nuclear medicine study, spect imaging, 1 area or single acquisition, single day imaging | Imaging | 78803 |
34 | More often than most peers in NUCLEAR MEDICINE |
| Nuclear medicine study of heart muscle at rest and with stress and spect | Imaging | 78451 |
34 | Too few peers to compare |
| Nuclear medicine study of lymphatic system | Imaging | 78195 |
31 | More often than most peers in NUCLEAR MEDICINE |
| Nuclear medicine study whole body with ct scan | Imaging | 78816 |
29 | Less often than most peers in NUCLEAR MEDICINE |
| Nuclear medicine study of bone taken at different times | Imaging | 78315 |
23 | As often as other peers in NUCLEAR MEDICINE |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at George Washington University School of Medicine 6
Other providers in the same specialty who trained at the same institution.
Class of 1976 at George Washington University School of Medicine 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Nuclear medicine study from skull base to mid-thigh with ct scan 8
Providers in MD who bill this service to Medicare most often.
Common questions
What does Andrew Keenan specialize in?
Andrew Keenan is a nuclear medicine in Largo, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Andrew Keenan located?
Andrew Keenan is listed at 901 Harry S Truman Dr N, Largo, MD 20774. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Andrew Keenan's phone number?
The number on file is (301) 677-2149. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Andrew Keenan?
Andrew Keenan's National Provider Identifier is 1467405175. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Andrew Keenan train?
Andrew Keenan attended George Washington University School of Medicine, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Andrew Keenan have?
Andrew Keenan has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What does Andrew Keenan do most often?
According to Medicare billing data, Andrew Keenan performs imaging including nuclear medicine study from skull base to mid-thigh with ct scan and nuclear medicine study of lung ventilation and circulation. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Andrew Keenan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Andrew Keenan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.