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KAREN ALENE BARR NURSE PRACTITIONER
NPI 1972787489
Nurse Practitioner - Adult Health in Washington, DC

Active since December 19, 2007PECOS Enrolled
2150 PENNSYLVANIA AVE NW, SUITE 4-417, WASHINGTON, DC 20037(202) 741-2323(202) 659-8627 Get Directions Write a Review

NPPES record last updated: December 19, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Karen Alene Barr Nurse Practitioner NPPES

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

KAREN ALENE BARR NURSE PRACTITIONER (NPI 1972787489) is an individual adult health provider in Washington, District Of Columbia, licensed in District Of Columbia (RN65944) and active in the NPI registry since December 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1972787489
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameKAREN ALENE BARRCredential: NURSE PRACTITIONER
Location Address2150 PENNSYLVANIA AVE NW, SUITE 4-417Washington, DC 20037-3201
Mailing Address2150 Pennsylvania Ave Nw, Suite 4-417Washington, DC 20037-3201 · (202) 741-2323 · Fax (202) 659-8627
Phone(202) 741-2323
Fax(202) 659-8627
Sole ProprietorNo
Enumeration DateDecember 19, 2007
✔ NPI 1972787489 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
Licenses✔ Licensed in DC · RN65944✔ Licensed in VA · 24136572
2150 PENNSYLVANIA AVE NW, Washington, DC 20037
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karen Alene Barr Nurse Practitioner 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 Reassignment

Medicare enrollment records show Karen Barr reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Medical Faculty Associates, Inc
Same address
Anesthesiology
2150 PENNSYLVANIA AVE NW, SUITE 10-409A
Washington, DC 20037
  • Reassigned Medicare billing, District of Columbia enrollment
  • 1,275 clinicians in this Medicare group
NPI 1417990581 (202) 741-3350

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20037 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.

LEI DU LYNN M.D.
Internal Medicine
2150 PENNSYLVANIA AVE NW, SUITE 5-416
WASHINGTON, DC 20037
District of Columbia (202) 741-2574
DR. ELLEN CURTIN MURPHY MD
Obstetrics & Gynecology (Obstetrics)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-2500
DR. CHRISTOPHER DAVID BADGER MD
Student in an Organized Health Care Education/Training Program
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3000
DR. MONICA MARIA MANRIQUE CASTRILLON MD
Student in an Organized Health Care Education/Training Program
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3000
DR. STEVEN JOSEPH RALSTON MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-2500
ROBERT STEVEN SIEGEL M.D.
Internal Medicine (Hematology & Oncology)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-3333
JAMES DAVID KATZ M.D.
Internal Medicine (Rheumatology)
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-2222
SYLVIA MENTEER GONSAHN-BOLLIE M.D.
Internal Medicine
2150 PENNSYLVANIA AVE NW
WASHINGTON, DC 20037
District of Columbia (202) 741-2222

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 Karen Barr's NPI number?

The NPI number for Karen Barr is 1972787489. It was assigned to this individual provider in the NPPES registry on December 19, 2007.

Where is Karen Barr located?

Karen Barr practices at 2150 Pennsylvania Ave NW Suite 4-417, Washington, DC 20037. The listed phone number is (202) 741-2323.

What is Karen Barr's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Karen Barr enrolled in Medicare?

Yes. Karen Barr is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Karen Barr's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Barr reassigns Medicare benefits to Medical Faculty Associates, Inc (Washington, DC). The 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 Karen Barr'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 Karen Barr was last updated on December 19, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.