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DR. REAGAN HERRINGTON M.D.
NPI 1124256300
Emergency Medicine in Alexandria, VA

Active since June 26, 2009PECOS Enrolled
4320 SEMINARY RD, ALEXANDRIA, VA 22304(703) 504-3000 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2022, Mar 17, 2018, Aug 23, 2017 (3 updates tracked since 2017).

About Dr. Reagan Herrington M.d. NPPES

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

DR. REAGAN HERRINGTON M.D. (NPI 1124256300) is an individual emergency medicine provider in Alexandria, Virginia, licensed in Virginia (0101253551) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS and maintains a secondary practice location in Bowie.

NPPES Registry Identity

NPI1124256300
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. REAGAN HERRINGTONCredential: M.D.
Location Address4320 SEMINARY RDAlexandria, VA 22304-1535
Mailing Address20010 Century Blvd, Suite 200Germantown, MD 20874-1115 · (240) 686-2300
Phone(703) 504-3000
Sole ProprietorNo
Enumeration DateJune 26, 2009
Last NPPES UpdateJuly 21, 20223 updates tracked since enumeration
✔ NPI 1124256300 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 · 0101253551
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
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Other Names 1

Former Name (1)Dr. Reagan Jones Md

Secondary Practice Location 1

Location 14101 Northview DrBowie, MD 20716-2616 · Phone (301) 383-2559

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Reagan Herrington M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Reagan Herrington reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Medicine Associates PA
Same address
Hospitalist
4320 SEMINARY RD
Alexandria, VA 22304
  • Reassigned Medicare billing, District of Columbia and Maryland enrollments
  • Medicare enrollment name: Emergency Medicine Associates P.A., P.C.
  • Also billed through NPI 1134117393 (Maryland)
  • 1,150 clinicians in this Medicare group
NPI 1932948114 (884) 474-4019
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

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 4

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.
114 services114 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.
58 services56 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.
32 services32 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
12 services12 patients

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 Reagan Herrington's NPI number?

The NPI number for Reagan Herrington is 1124256300. It was assigned to this individual provider in the NPPES registry on June 26, 2009. The provider is also known as Dr. Reagan Jones MD.

Where is Reagan Herrington located?

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

What is Reagan Herrington's specialty?

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

Is Reagan Herrington enrolled in Medicare?

Yes. Reagan Herrington is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Reagan Herrington's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Reagan Herrington reassigns Medicare benefits to 2 organizations: Emergency Medicine Associates PA (Alexandria, VA) and Alexandria Springfield Emergency Physicians PC (Alexandria, 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 Reagan Herrington's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Reagan Herrington was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.