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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LOUISA A WALKER MD
NPI 1497332944
Anesthesiology in Durham, NC

Active since March 29, 2021PECOS Enrolled
2301 ERWIN RD, DURHAM, NC 27705(919) 684-8111 Get Directions Write a Review

NPPES record last updated: November 6, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 6, 2026, Apr 1, 2021 (2 updates tracked since 2021).

About Louisa A Walker Md NPPES

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

LOUISA A WALKER MD (NPI 1497332944) is an individual anesthesiology provider in Durham, North Carolina, licensed in Colorado (DR.0077301) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497332944
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameLOUISA A WALKERCredential: MD
Location Address2301 ERWIN RDDurham, NC 27705-4699
Mailing Address2301 Erwin Rd, Dumc 3094Durham, NC 27710-4699 · (919) 684-8111
Phone(919) 684-8111
Sole ProprietorNo
Enumeration DateMarch 29, 2021
Last NPPES UpdateNovember 6, 20262 updates tracked since enumeration
NPPES CertifiedNovember 6, 2026
✔ NPI 1497332944 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CO · DR.0077301
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
2301 ERWIN RD, Durham, NC 27705
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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)

Louisa A Walker Md 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 Louisa Walker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Us Anesthesia Partners Of Colorado Inc.
1,437 mi
Anesthesiology
8000 E MAPLEWOOD AVE STE 120
Greenwood Village, CO 80111
  • Reassigned Medicare billing, Colorado enrollment
  • 971 clinicians in this Medicare group
NPI 1922365782 (303) 438-3999

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

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. HONGYUN JUNE ZHU M.D.
Radiology (Diagnostic Radiology)
2301 ERWIN RD
DURHAM, NC 27705
Durham County (919) 684-8111
WILBUR RIGEL DATTILO M.D.
Psychiatry & Neurology (Psychiatry)
2301 ERWIN RD
DURHAM, NC 27705
Durham County (919) 684-8111
DR. SHARON MCCARTNEY M.D.
Anesthesiology
2301 ERWIN RD
DURHAM, NC 27705
Durham County (919) 681-3811
DR. JOEL GARRY MORASH M.D.
Student in an Organized Health Care Education/Training Program
2301 ERWIN RD
DURHAM, NC 27705
Durham County (919) 684-8111
REBEKAH DOIRON
Nurse Practitioner (Family)
2301 ERWIN RD
DURHAM, NC 27705
Durham County (919) 684-8111
DR. YURIY ZEYLIKMAN M.D.
Psychiatry & Neurology (Neurology)
2301 ERWIN RD
DURHAM, NC 27705
Durham County (919) 684-8111
ELIZABETH HOPE WEISSLER
Surgery (Vascular Surgery)
2301 ERWIN RD
DURHAM, NC 27705
Durham County (919) 684-8111
DR. ANGEL GUERRERO MD
Emergency Medicine
2301 ERWIN RD
DURHAM, NC 27705
Durham County (919) 684-8111

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 Louisa Walker's NPI number?

The NPI number for Louisa Walker is 1497332944. It was assigned to this individual provider in the NPPES registry on March 29, 2021.

Where is Louisa Walker located?

Louisa Walker practices at 2301 Erwin Rd, Durham, NC 27705. The listed phone number is (919) 684-8111.

What is Louisa Walker's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Louisa Walker enrolled in Medicare?

Yes. Louisa Walker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Louisa Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louisa Walker reassigns Medicare benefits to Us Anesthesia Partners Of Colorado Inc. (Greenwood Village, CO). 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 Louisa Walker'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 Louisa Walker was last updated on November 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.