AMERICAN DIAGNOSTICS SERVICES LLC
NPI 1639140387
Physiological Laboratory in Windsor Mill, MD
About American Diagnostics Services Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMERICAN DIAGNOSTICS SERVICES LLC (NPI 1639140387), doing business as Tridentcare, is a healthcare organization registered as a physiological laboratory in Windsor Mill, Maryland and active in the NPI registry since January 2006. The organization maintains 32 additional practice locations and lists Brian C Cuomo, Authorized Official/cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 32
Other Identifiers 32
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
American Diagnostics Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date 6
Next revalidation due by October 31, 2026
This provider holds 6 Medicare enrollments with upcoming revalidation dates. Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
70Medicare enrollment records show 70 clinicians reassign Medicare billing to American Diagnostics Services LLC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 5
Nearest to this location (20)
See all 70Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 44
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is American Diagnostics Services LLC's NPI number?
The NPI number for American Diagnostics Services LLC is 1639140387. It was assigned to this organization in the NPPES registry on January 31, 2006. The provider is doing business as TridentCare.
Where is American Diagnostics Services LLC located?
American Diagnostics Services LLC is located at 2505 Lord Baltimore Drive Suite E, Windsor Mill, MD 21244. The listed phone number is (410) 295-3565.
What is American Diagnostics Services LLC's specialty?
The primary specialty registered for this NPI is Physiological Laboratory with taxonomy code 293D00000X.
Is American Diagnostics Services LLC enrolled in Medicare?
Yes. American Diagnostics Services LLC is registered in the Medicare PECOS enrollment system.
When is American Diagnostics Services LLC's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), American Diagnostics Services LLC holds 6 Medicare enrollments with upcoming revalidation dates. The next is due by October 31, 2026 (Non-DME Part B, New Hampshire, Independent Diagnostic Testing Facility (IDTF)). Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through American Diagnostics Services LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 70 clinicians in 5 Medicare specialties reassign their Medicare billing to American Diagnostics Services LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Diagnostic Radiology (59), Cardiovascular Disease (Cardiology) (8) and Internal Medicine (1). Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does American Diagnostics Services LLC accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Anthem Blue Cross and Blue Shield and 8 other insurers list American Diagnostics Services LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for American Diagnostics Services LLC was last updated on March 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# American Diagnostics Services Llc · NPI 1639140387
Physiological Laboratory organization in Windsor Mill, Maryland. Organization record, active in the CMS NPPES registry since January 31, 2006.
## Identity
- **NPI:** 1639140387 (Entity type: Organization)
- **Enumerated:** January 31, 2006
- **Primary specialty:** Physiological Laboratory · taxonomy 293D00000X
- **Also known as:** TridentCare (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Brian Cuomo, AUTHORIZED OFFICIAL/CFO
## Practice location
- **Address:** 2505 LORD BALTIMORE DRIVE, SUITE E, Windsor Mill, MD 21244-2639
- **Phone:** (410) 295-3565 · **Fax:** (443) 842-7264
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** October 31, 2026 (Non-DME Part B, New Hampshire, Independent Diagnostic Testing Facility (IDTF)), next of 6 enrollments with upcoming dates · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 70 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Diagnostic Radiology (59), Cardiovascular Disease (Cardiology) (8), Internal Medicine (1); 1 practice within 10 miles; [full list](https://npiprofile.com/npi/1639140387/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 11, 2026
- **Other identifiers:** Medicaid 1487954913 (MN); Medicaid 1639140387 (MI); Other 19531 (PA); and 29 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1639140387) · Data from the CMS NPPES public registry.