AMERICAN DIAGNOSTICS SERVICES LLC
AMERICAN DIAGNOSTICS SERVICES LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1639140387, based in Windsor Mill, MD. The organization lists 2 taxonomy classifications, with Physiological Laboratory recorded as primary.
Getting there
The practice address on file is 2505 LORD BALTIMORE DRIVE SUITE E, Windsor Mill, MD 21244. 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
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
- Status
- Approved
- Provider type
- Part B Supplier - Independent Diagnostic Testing Facility (idtf)
- PAC ID
- 1355241274
Enrolled in Medicare 31 times, across 31 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Pennsylvania | O20040108001087 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| New Jersey | O20050310000514 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Delaware | O20050720000880 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Ohio | O20070608000257 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Massachusetts | O20080806000184 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Rhode Island | O20080807000231 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Connecticut | O20081009000006 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Maryland | O20090123000093 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Michigan | O20090206000060 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Indiana | O20090825000029 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| District of Columbia | O20090902000626 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Virginia | O20090909000222 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Alabama | O20100113000556 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Kansas | O20100119000013 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| South Carolina | O20100415000868 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| New Hampshire | O20101103000071 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Tennessee | O20110215000587 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Georgia | O20110218000214 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Kentucky | O20110311000425 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Missouri | O20110609000778 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Nevada | O20170314000932 | Part B Supplier - Clinic/group Practice |
| California | O20170317001102 | Part B Supplier - Clinic/group Practice |
| Hawaii | O20170327001211 | Part B Supplier - Clinic/group Practice |
| Texas | O20170327001981 | Part B Supplier - Clinic/group Practice |
| Illinois | O20170411001369 | Part B Supplier - Clinic/group Practice |
| Arizona | O20170421001581 | Part B Supplier - Clinic/group Practice |
| North Carolina | O20170502001787 | Part B Supplier - Clinic/group Practice |
| Washington | O20170509002784 | Part B Supplier - Clinic/group Practice |
| Florida | O20170519002150 | Part B Supplier - Clinic/group Practice |
| Maine | O20210114001001 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
| Vermont | O20210708001451 | Part B Supplier - Independent Diagnostic Testing Facility (idtf) |
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Independent Diagnostic Testing Facility (idtf). There are 31 separate enrolment records across 31 states (PA, NJ, DE, OH, MA, RI, CT, MD, MI, IN, DC, VA, AL, KS, SC, NH, TN, GA, KY, MO, NV, CA, HI, TX, IL, AZ, NC, WA, FL, ME, VT). 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 Physiological Laboratory covers
A laboratory that operates independently of a hospital and physician's office to furnish physiological diagnostic services (e.g. EEG's , EKG's, scans, etc.). Facilities offering ONLY physiological services are not certified as independent laboratories. If an independent laboratory offers physiological services IN ADDITION to clinical laboratory services, they are surveyed only for compliance with the clinical laboratory regulations because there are no health and safety regulations for physiological services. NUCC Health Care Provider Taxonomy, code 293D00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2085R0202X | Diagnostic Radiology Physician Diagnostic Radiology | — | — | |
| 293D00000X | Physiological Laboratory | — | — | primary |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1639140387 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 31, 2006 |
| Last updated | Mar 11, 2026 |
| Status | Active |
| Practice address |
2505 LORD BALTIMORE DRIVE SUITE E Windsor Mill, MD 21244 (410) 295-3565 Fax (443) 842-7264 |
| Mailing address |
215 SCHILLING CIR STE 114 Hunt Valley, MD 21031 |
| Other names |
Tridentcare Former Legal Name |
| Other identifiers |
0015026330013
· Medicaid (PA) 03340952 · Medicaid (NY) 038913700 · Other (PA) 0389137000 · Other (PA) 0389137000 · Other (PA) 10026119900 · Medicaid (NE) 1035442 · Other (NJ) 10661 · Other (PA) 118225200 · Other (NJ) 119726 · Medicaid (AL) 1487954913 · Medicaid (IA) 1487954913 · Medicaid (MN) 1523253 · Medicaid (TN) 1639140387 · Medicaid (PA) 1639140387 · Medicaid (MI) 1639140387 · Medicaid (VA) 1639140387 · Medicaid (MO) 19531 · Other (PA) 200409010A · Medicaid (OK) 200726830A · Medicaid (KS) 200980860A · Medicaid (IN) 250540997 · Medicaid (DE) 2563931 · Other (PA) 2839585 · Medicaid (OH) 3081146 · Medicaid (NH) 3910006905 · Medicaid (WV) 417010500 · Medicaid (MD) 499596 · Other (NJ) 7100156790 · Medicaid (KY) 7660804 · Medicaid (NJ) 91000047800 · Other (NJ) SL0101 · Medicaid (SC) |
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 | 6 | 3 | 9 | 1 | 4 | 0 | 3 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 6 | 9 | 2 | 4 | 0 | 3 | 7 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
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.