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WILLOW ANESTHESIA SERVICES LLC
NPI 1184575011
Anesthesiology in Oxford, MS

Active since February 06, 2026
2704 W OXFORD LOOP STE 117, OXFORD, MS 38655(662) 550-4299(662) 580-4324 Get Directions Write a Review

NPPES record last updated: April 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 29, 2026, Feb 6, 2026 (2 updates tracked since 2026).

About Willow Anesthesia Services Llc NPPES

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

WILLOW ANESTHESIA SERVICES LLC (NPI 1184575011) is a healthcare organization registered as an anesthesiology in Oxford, Mississippi and active in the NPI registry since February 2026. The organization lists David Garret Mccullen, Crna, as its authorized official.

NPPES Registry Identity

NPI1184575011
Entity TypeOrganization
Primary Taxonomy207L00000X
Legal Business NameWILLOW ANESTHESIA SERVICES LLC
Location Address2704 W OXFORD LOOP STE 117Oxford, MS 38655-5728
Mailing Address2704 W Oxford Loop Ste 117Oxford, MS 38655-5728 · (662) 550-4299 · Fax (662) 580-4324
Phone(662) 550-4299
Fax(662) 580-4324
Organization SubpartYesParent: Willow Anesthesia Services, Llc
Authorized OfficialDavid Garret MccullenCrna · (941) 360-1566
Enumeration DateFebruary 6, 2026
Last NPPES UpdateApril 29, 20262 updates tracked since enumeration
NPPES CertifiedApril 29, 2026
✔ NPI 1184575011 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
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.
2704 W OXFORD LOOP STE 117, Oxford, MS 38655
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Willow Anesthesia Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

29

Medicare enrollment records show 29 clinicians reassign Medicare billing to Willow Anesthesia Services LLC, which bills Medicare for the services they deliver. Of these, 5 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 2

Certified Registered Nurse Anesthetist (CRNA)21
Anesthesiology8

Nearest to this location (20)

See all 29
James Baker, M.S.N.
Certified Registered Nurse Anesthetist (CRNA)
NPI 1568804755
2704 W OXFORD LOOP STE 117
Oxford, MS 38655
(662) 550-4299
✔ PECOS✔ Accepts Medicare0.1 mi
Julie Hammond, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1861789240
2704 W OXFORD LOOP SUITE 117
Oxford, MS 38655
(662) 550-4299
✔ PECOS✔ Accepts Medicare0.1 mi
John Maharrey, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1689019929
2704 W OXFORD LOOP SUITE 117
Oxford, MS 38655
(662) 550-4299
✔ PECOS✔ Accepts Medicare0.1 mi
Robert Carpenter, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1417036419
2301 SOUTH LAMAR BLVD.
Oxford, MS 38655
(662) 232-8100
✔ PECOS✔ Accepts Medicare3.1 mi
Carolyn Costilow
Certified Registered Nurse Anesthetist (CRNA)
NPI 1538836846
1100 BELK BLVD
Oxford, MS 38655
(662) 636-1000
✔ PECOS✔ Accepts Medicare3.5 mi
David Mccullen, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1902878945
303 MEDICAL CENTER DR
Batesville, MS 38606
(662) 563-0155
✔ PECOS✔ Accepts Medicare20 mi
Jesse Clements
Certified Registered Nurse Anesthetist (CRNA)
NPI 1144894916
391 SOUTHCREST CIR STE 108
Southaven, MS 38671
(901) 484-8313
✔ PECOS✔ Accepts Medicare48 mi
Allison Johnston, DNP, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1982278735
391 SOUTHCREST CIR STE 108
Southaven, MS 38671
(662) 349-2659
✔ PECOS48 mi
Alexander James, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1952783003
1900 EXETER RD STE 210
Germantown, TN 38138
(901) 818-2160
✔ PECOS✔ Accepts Medicare52 mi
Ashley Murray, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1124363148
1900 EXETER RD STE 210
Germantown, TN 38138
(901) 818-2183
✔ PECOS✔ Accepts Medicare52 mi
Jivanlal Dalsania, MD
Anesthesiology
NPI 1548293079
1068 CRESTHAVEN RD SUITE 150
Memphis, TN 38119
(901) 682-6828
✔ PECOS✔ Accepts Medicare54 mi
Mary Pena, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1043441652
6019 WALNUT GROVE RD
Memphis, TN 38120
(901) 226-5000
✔ PECOS✔ Accepts Medicare55 mi
Alex Stanfill, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1609340827
6019 WALNUT GROVE RD
Memphis, TN 38120
(901) 226-5000
✔ PECOS✔ Accepts Medicare55 mi
Raymond Wilson, MD
Anesthesiology
NPI 1902883713
1265 UNION AVE
Memphis, TN 38104
(901) 725-5846
✔ PECOS✔ Accepts Medicare59 mi
Chun Chan, M.D.
Anesthesiology
NPI 1083815112
1265 UNION AVE
Memphis, TN 38104
(901) 725-5846
✔ PECOS✔ Accepts Medicare59 mi
Matthew Fields, M.D.
Anesthesiology
NPI 1225340151
1265 UNION AVE
Memphis, TN 38104
(901) 725-5846
✔ PECOS✔ Accepts Medicare59 mi
David Reid, MD
Anesthesiology
NPI 1053397935
1265 UNION AVE
Memphis, TN 38104
(901) 725-5846
✔ PECOS✔ Accepts Medicare59 mi
Nerma Scharr, M.D.
Anesthesiology
NPI 1114158938
1265 UNION AVE
Memphis, TN 38104
(901) 725-5846
✔ PECOS✔ Accepts Medicare59 mi
Pamela Walton, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1184882565
1030 JEFFERSON AVE
Memphis, TN 38104
(901) 523-8990
✔ PECOS✔ Accepts Medicare59 mi
Mary Farris-Conley, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1902100878
877 JEFFERSON AVE
Memphis, TN 38103
(901) 448-5893
✔ PECOS✔ Accepts Medicare60 mi
See all 29 clinicians

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

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 Willow Anesthesia Services LLC's NPI number?

The NPI number for Willow Anesthesia Services LLC is 1184575011. It was assigned to this organization in the NPPES registry on February 6, 2026.

Where is Willow Anesthesia Services LLC located?

Willow Anesthesia Services LLC is located at 2704 W Oxford Loop Ste 117, Oxford, MS 38655. The listed phone number is (662) 550-4299.

What is Willow Anesthesia Services LLC's specialty?

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

Is Willow Anesthesia Services LLC enrolled in Medicare?

Yes. Willow Anesthesia Services LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Willow Anesthesia Services LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 29 clinicians in 2 Medicare specialties reassign their Medicare billing to Willow Anesthesia Services LLC. A 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 the clinician's services. The largest specialties are Certified Registered Nurse Anesthetist (CRNA) (21) and Anesthesiology (8). Of these, 5 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Willow Anesthesia Services LLC was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.