Andrew Keenan, M.D.
Andrew Keenan, M.D. is a Nuclear Imaging & Therapy Physician in Largo, MD, registered under NPI 1467405175. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 901 HARRY S TRUMAN DR N, Largo, MD 20774. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| D0026012 | MD | Nuclear Imaging & Therapy Physician primary |
| D0026012 | MD | Internal Medicine Physician |
| D0026012 | MD | In Vivo & In Vitro Nuclear Medicine… |
This provider holds licence D0026012 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nuclear Medicine
- PAC ID
- 3375545346
Enrolled in Medicare 3 times, across 3 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| District of Columbia | I20070203000061 | Practitioner - Nuclear Medicine |
| New Jersey | I20131031000936 | Practitioner - Cardiovascular Disease (cardiology) |
| Maryland | I20190909000254 | Practitioner - Nuclear Medicine |
Medicare enrolment is recorded as approved under the provider type Practitioner - Nuclear Medicine. There are 3 separate enrolment records across 3 states (DC, NJ, MD). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Nuclear Imaging & Therapy covers
A nuclear medicine physician who specializes in nuclear imaging and therapy. NUCC Health Care Provider Taxonomy, code 207UN0902X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207UN0902X | Nuclear Imaging & Therapy Physician Nuclear Imaging & Therapy | D0026012 | MD | primary |
| 207R00000X | Internal Medicine Physician | D0026012 | MD | |
| 207UN0903X | In Vivo & In Vitro Nuclear Medicine Physician In Vivo & In Vitro Nuclear Medicine | D0026012 | MD |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1467405175 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 17, 2006 |
| Last updated | Jun 23, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
901 HARRY S TRUMAN DR N Largo, MD 20774 (301) 677-2149 |
| Mailing address |
2831 MCDUFF DR Chesapeake Beach, MD 20732 |
| Other identifiers |
331441300
· Medicaid (MD) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 4 | 6 | 7 | 4 | 0 | 5 | 1 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 3 | 7 | 8 | 0 | 1 | 1 | 5 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.