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DR. ADAM FASS USLAN DO
NPI 1649850371
Emergency Medicine in Alexandria, VA

Active since April 08, 2021PECOS EnrolledAccepts Medicare Assignment
4320 SEMINARY RD, ALEXANDRIA, VA 22304(703) 504-3000 Get Directions Write a Review

NPPES record last updated: May 12, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 12, 2026, Apr 8, 2021 (2 updates tracked since 2021).

About Dr. Adam Fass Uslan Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ADAM FASS USLAN DO (NPI 1649850371) is an individual emergency medicine provider in Alexandria, Virginia, licensed in Virginia (0102208402) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Warren Memorial Hospital, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1649850371
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. ADAM FASS USLANCredential: DO
Location Address4320 SEMINARY RDAlexandria, VA 22304-1535
Mailing Address220 Campus Blvd Ste 320Winchester, VA 22601-2889 · (540) 536-5100
Phone(703) 504-3000
Sole ProprietorNo
Medical School CMSUniversity Of New England, College Of Osteo MedicineGraduated 2021
Enumeration DateApril 8, 2021
Last NPPES UpdateMay 12, 20262 updates tracked since enumeration
NPPES CertifiedMay 12, 2026
✔ NPI 1649850371 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in VA · 0102208402
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
4320 SEMINARY RD, Alexandria, VA 22304
Open in Google Maps ↗

Secondary Practice Locations 5

Location 1351 Valley Health WayFront Royal, VA 22630-3598 · Phone (540) 636-0300 · Fax (540) 636-0429
Location 2200 Memorial DrLuray, VA 22835-1000 · Phone (540) 743-4561 · Fax (540) 743-9560
Location 31840 Amherst StWinchester, VA 22601-2808 · Phone (540) 536-8700 · Fax (540) 536-7800
Location 4759 S Main StWoodstock, VA 22664-1154 · Phone (540) 459-1100 · Fax (540) 459-1121
Location 52601 E Roosevelt StPhoenix, AZ 85008-4973 · Phone (240) 447-8330

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Adam Fass Uslan Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3375085616
PECOS Enrollment IDI20250428002634
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare enrollment records show Adam Uslan reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Alexandria Springfield Emergency Physicians PC
2.9 mi
Emergency Medicine
400 FANNON ST
Alexandria, VA 22301
  • Reassigned Medicare billing, District of Columbia enrollment
  • 135 clinicians in this Medicare group
NPI 1285454900 (844) 474-4019
Warren Memorial Hospital, Inc.
57 mi
Emergency Medicine
351 VALLEY HEALTH WAY
Front Royal, VA 22630
  • Reassigned Medicare billing, Virginia enrollment
  • 367 clinicians in this Medicare group
NPI 1164442281 (540) 636-0300
Page Memorial Hospital Inc.
59 mi
Rural Health
12699 LEE HWY
Washington, VA 22747
  • Reassigned Medicare billing, Virginia enrollment
  • Also billed through NPI 1326040684 (Virginia)
  • 364 clinicians in this Medicare group
NPI 1639552995 (540) 987-5068
Winchester Medical Center
60 mi
Family Medicine
217 GROCERY AVENUE, SUITE B
Winchester, VA 22602
  • Reassigned Medicare billing, Virginia enrollment
  • 756 clinicians in this Medicare group
NPI 1689463671 (540) 536-7700
Shenandoah Memorial Hospital, Inc.
68 mi
Family Medicine
33699 OLD VALLEY PIKE STE D
Strasburg, VA 22657
  • Reassigned Medicare billing, Virginia enrollment
  • Also billed through NPI 1033166442 (Virginia)
  • 416 clinicians in this Medicare group
NPI 1710494331 (540) 459-1410

Source: 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 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
94 services94 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
45 services44 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
32 services32 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Warren Memorial Hospital

Acute Care Hospitals · Front Royal, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490033
Location351 Valley Health WayFront Royal, VA 22630 · Warren County
Emergency services

Inova Alexandria Hospital

Acute Care Hospitals · Alexandria, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490040
Location4320 Seminary RdAlexandria, VA 22304 · Alexandria City County
Emergency services Birthing friendly

Shenandoah Memorial Hospital

Critical Access Hospitals · Woodstock, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number491305
Location759 South Main StreetWoodstock, VA 22664 · Shenandoah County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22304 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MADHUSUDANAN SRAMBICKAL RAMASWAMY M.D., M.S.
Internal Medicine (Critical Care Medicine)
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000
ASSOCIATION OF ALEXANDRIA RADIOLOGISTS, P.C.
Radiology (Diagnostic Radiology)
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000
DR. MICHAEL ANTHONY HOLLIDAY M.D.
Pediatrics (Neonatal-Perinatal Medicine)
4320 SEMINARY RD, SUITE 3000
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3069
MR. VALENTINE JEAN TOUSSAINT NILES CRNA
Nurse Anesthetist, Certified Registered
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3521
MR. RODOLFO AMA ALORA JR. PT
Physical Therapist
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3167
ABDUL RAHMAN M.D
Internal Medicine (Critical Care Medicine)
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000
LIANA E MATEVOSIAN NP
Nurse Practitioner
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000
DR. BROOKE LANELL GRAY D.O.
Internal Medicine (Critical Care Medicine)
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000

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 Adam Uslan's NPI number?

The NPI number for Adam Uslan is 1649850371. It was assigned to this individual provider in the NPPES registry on April 8, 2021.

Where is Adam Uslan located?

Adam Uslan practices at 4320 Seminary Rd, Alexandria, VA 22304. The listed phone number is (703) 504-3000.

What is Adam Uslan's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Adam Uslan enrolled in Medicare?

Yes. Adam Uslan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Adam Uslan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Adam Uslan reassigns Medicare benefits to 5 organizations: Alexandria Springfield Emergency Physicians PC (Alexandria, VA), Warren Memorial Hospital, Inc. (Front Royal, VA), Page Memorial Hospital Inc. (Washington, VA), Winchester Medical Center (Winchester, VA) and Shenandoah Memorial Hospital, Inc. (Strasburg, VA). Each 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 Adam Uslan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Adam Uslan accept?

Health plans from CareSource list Adam Uslan 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.

Is Adam Uslan affiliated with any hospitals?

According to CMS data, Adam Uslan is affiliated with Warren Memorial Hospital, Inova Alexandria Hospital and Shenandoah Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Adam Uslan was last updated on May 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.