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CAROLYN CHAY COSTILOW
NPI 1538836846
Nurse Anesthetist, Certified Registered in Oxford, MS

Active since August 24, 2021PECOS EnrolledAccepts Medicare Assignment
1100 BELK BLVD, OXFORD, MS 38655(662) 636-1000 Get Directions Write a Review

NPPES record last updated: March 14, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 14, 2023, Mar 10, 2023, Aug 24, 2021 (3 updates tracked since 2021).

About Carolyn Chay Costilow NPPES

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

CAROLYN CHAY COSTILOW (NPI 1538836846) is an individual nurse anesthetist, certified registered in Oxford, Mississippi, licensed in Mississippi (141317) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS, is affiliated with University Of Mississippi Medical Center- Grenada, and maintains a secondary practice location in Madison.

NPPES Registry Identity

NPI1538836846
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameCAROLYN CHAY COSTILOW
Location Address1100 BELK BLVDOxford, MS 38655-5242
Mailing Address124 Breckenridge DrOxford, MS 38655-7502
Phone(662) 636-1000
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateAugust 24, 2021
Last NPPES UpdateMarch 14, 20233 updates tracked since enumeration
NPPES CertifiedMarch 14, 2023
✔ NPI 1538836846 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in MS · 141317
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
1100 BELK BLVD, Oxford, MS 38655
Open in Google Maps ↗

Secondary Practice Location 1

Location 1315 Hospital DrMadison, TN 37115-5030 · Phone (615) 732-7671

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Carolyn Chay Costilow is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1153796370
PECOS Enrollment IDI20230331000502, I20260710003983
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 Carolyn Costilow reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Willow Anesthesia Services LLC
3.5 mi
Nurse Anesthetist, Certified Registered
2704 W OXFORD LOOP, SUITE 117
Oxford, MS 38655
  • Reassigned Medicare billing, Mississippi and Tennessee enrollments
  • Also billed through NPI 1184575011 (Tennessee)
  • 122 clinicians in this Medicare group
NPI 1205169521 (662) 550-4299
Lifelinc Anesthesia, PLLC
51 mi
Anesthesiology
3340 PLAYERS CLUB PKWY STE 350
Memphis, TN 38125
  • Reassigned Medicare billing, Mississippi enrollment
  • 284 clinicians in this Medicare group
NPI 1801021464 (901) 207-2017

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 5

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.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
57 services54 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
18 services18 patients
Anesthesia for other procedure on upper abdomen 00790
Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.
13 services13 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
12 services12 patients
Anesthesia for nerve destruction procedures on spine or spinal cord of lower back accessed through skin using imaging guidance 01940
This is a procedure where anesthesia is applied to numb specific nerves in your lower back. Using imaging guidance, the doctor can accurately locate these nerves through the skin. This is done to alleviate pain by disrupting nerve signals. It's a safe and effective method.
11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Mississippi Medical Center- Grenada

Acute Care Hospitals · Grenada, MS
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number250168
Location960 Avent DriveGrenada, MS 38901 · Grenada County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 38655 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
$120.41 typical visit price
range $51.65 – $159.18
Typical copayment $30.10 (range $12.91 – $39.79)
Most-billed visit code 99204
Established Patient
$64.96 typical visit price
range $16.15 – $129.61
Typical copayment $16.24 (range $4.03 – $32.40)
Most-billed visit code 99213
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.

RAJESH SUBRAMANYA M.D
Pediatrics
1100 BELK BLVD
OXFORD, MS 38655
Lafayette County (662) 636-1000
MEHNAZ NADEEM MD
Student in an Organized Health Care Education/Training Program
1100 BELK BLVD
OXFORD, MS 38655
Lafayette County (662) 636-1000
JENNIFER DIXON
Registered Nurse
1100 BELK BLVD
OXFORD, MS 38655
Lafayette County (601) 209-6410
GREGORY L THOMPSON MD
Anesthesiology
1100 BELK BLVD
OXFORD, MS 38655
Lafayette County (662) 232-8100
DR. SAJAN SARKER DO
Internal Medicine
1100 BELK BLVD
OXFORD, MS 38655
Lafayette County (662) 636-1000
DR. STUART TODD ROTH MD
Radiology (Diagnostic Radiology)
1100 BELK BLVD
OXFORD, MS 38655
Lafayette County (662) 232-8100
BAPTIST MEMORIAL HOSPITAL NORTH MISSISSIPPI, INC
General Acute Care Hospital
1100 BELK BLVD
OXFORD, MS 38655
Lafayette County (662) 636-1000
LAKSHMI TEJASWINI ELURI
Student in an Organized Health Care Education/Training Program
1100 BELK BLVD
OXFORD, MS 38655
Lafayette County (662) 636-1000

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 Carolyn Costilow's NPI number?

The NPI number for Carolyn Costilow is 1538836846. It was assigned to this individual provider in the NPPES registry on August 24, 2021.

Where is Carolyn Costilow located?

Carolyn Costilow practices at 1100 Belk Blvd, Oxford, MS 38655. The listed phone number is (662) 636-1000.

What is Carolyn Costilow's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Carolyn Costilow enrolled in Medicare?

Yes. Carolyn Costilow is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Carolyn Costilow's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carolyn Costilow reassigns Medicare benefits to 2 organizations: Willow Anesthesia Services LLC (Oxford, MS) and Lifelinc Anesthesia, PLLC (Memphis, TN). 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 Carolyn Costilow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carolyn Costilow accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 2 other insurers list Carolyn Costilow 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.

Is Carolyn Costilow affiliated with any hospitals?

According to CMS data, Carolyn Costilow is affiliated with University Of Mississippi Medical Center- Grenada.

When was this NPI record last updated?

The NPPES record for Carolyn Costilow was last updated on March 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.