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IAN MURDOCK WARRINGTON M.D.
NPI 1184850851
Emergency Medicine in Washington, DC

Active since June 08, 2009PECOS Enrolled
5255 LOUGHBORO RD NW, WASHINGTON, DC 20016(202) 537-4080 Get Directions Write a Review

NPPES record last updated: December 15, 2014. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ian Murdock Warrington M.d. NPPES

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

IAN MURDOCK WARRINGTON M.D. (NPI 1184850851) is an individual emergency medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (MD041159) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1184850851
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameIAN MURDOCK WARRINGTONCredential: M.D.
Location Address5255 LOUGHBORO RD NWWashington, DC 20016-2633
Mailing Address1750 16th St Nw, Apartment #12Washington, DC 20009-3147
Phone(202) 537-4080
Sole ProprietorYes
Enumeration DateJune 8, 2009
Last NPPES UpdateDecember 15, 2014
✔ NPI 1184850851 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in DC · MD041159✔ Licensed in VA · 0101253678
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.
5255 LOUGHBORO RD NW, Washington, DC 20016
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Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ian Murdock Warrington 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 Ian Warrington 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 PC
3.4 mi
Emergency Medicine
1701 N GEORGE MASON DR
Arlington, VA 22205
  • Reassigned Medicare billing, District of Columbia enrollment
  • Medicare enrollment name: Emergency Medicine Associates P.A., P.C.
  • 1,150 clinicians in this Medicare group
NPI 1588529887 (330) 493-4443
Alexandria Springfield Emergency Physicians PC
8.1 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.
272 services266 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.
82 services80 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.
34 services34 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.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20016 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.

DANIEL RICHARD STAIRIKER CRNP
Nurse Practitioner
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
District of Columbia (202) 537-4000
HOWARD JIAHAU LI MD
Obstetrics & Gynecology
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
District of Columbia (202) 537-4000
MR. JOSEPH JOHN LIBRICZ JR. P.A.-C.
Physician Assistant (Surgical)
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
District of Columbia (301) 589-3977
MICHAEL GOLDENHORN PHARMD
Pharmacist
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
District of Columbia (202) 537-4769
AARON CONARD
Radiology (Radiological Physics)
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
District of Columbia (240) 366-7325
MONTY H. OPPENHEIM MD
Anesthesiology
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
District of Columbia (202) 243-2280
ANDREA L RICHARDSON MD PHD
Pathology (Cytopathology)
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
District of Columbia (202) 537-4455
DR. SHIVANI AHLAWAT MD
Radiology (Diagnostic Radiology)
5255 LOUGHBORO RD NW
WASHINGTON, DC 20016
District of Columbia (202) 537-4686

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 Ian Warrington's NPI number?

The NPI number for Ian Warrington is 1184850851. It was assigned to this individual provider in the NPPES registry on June 8, 2009.

Where is Ian Warrington located?

Ian Warrington practices at 5255 Loughboro Rd NW, Washington, DC 20016. The listed phone number is (202) 537-4080.

What is Ian Warrington's specialty?

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

Is Ian Warrington enrolled in Medicare?

Yes. Ian Warrington is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ian Warrington's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ian Warrington reassigns Medicare benefits to 2 organizations: Emergency Medicine Associates PA PC (Arlington, 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 Ian Warrington's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ian Warrington accept?

Health plans from Taro Health list Ian Warrington 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 Ian Warrington was last updated on December 15, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.