SHEILA FLEWALLEN CRNA
NPI 1851712715
Nurse Anesthetist, Certified Registered in Nashville, TN

Q: What is Sheila Flewallen's NPI number?

The NPI number for Sheila Flewallen is 1851712715. It was assigned to this individual provider in the NPPES registry on December 19, 2013.

Q: What is Sheila Flewallen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Sheila Flewallen was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since December 19, 2013Accepts Medicare Assignment

59.46/100

CMS Quality Rating

4230 HARDING PIKE STE 435, NASHVILLE, TN 37205(615) 385-3704(615) 292-1321 Get Directions Write a Review

NPPES record last updated: November 5, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Sheila Flewallen Crna NPPES

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

SHEILA FLEWALLEN CRNA (NPI 1851712715) is an individual nurse anesthetist, certified registered in Nashville, Tennessee, licensed in Tennessee (18231) and active in the NPI registry since December 2013. She is affiliated with Maury Regional Hospital, maintains a secondary practice location in Nashville, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1851712715

Entity TypeIndividualFemale

Primary Taxonomy367500000X

Provider Legal NameSHEILA FLEWALLENCredential: CRNA

Location Address4230 HARDING PIKE STE 435Nashville, TN 37205-4900

Mailing Address4230 Harding Pike Ste 435Nashville, TN 37205-4900 · (615) 385-3704 · Fax (615) 292-1321

Phone(615) 385-3704

Fax(615) 292-1321

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateDecember 19, 2013

Last NPPES UpdateNovember 5, 2025

NPPES CertifiedNovember 5, 2025

✔ NPI 1851712715 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367500000X

License✔ Licensed in TN · 18231

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.

Also ListedRegistered Nurse · Critical Care MedicineTaxonomy 163WC0200X · License 177924 (TN)

4230 HARDING PIKE STE 435, Nashville, TN 37205

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Secondary Practice Location 1

Location 1110 29th Ave N Ste 202Nashville, TN 37203-1448 · Phone (615) 327-4304 · Fax (615) 327-7940

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare, Oscar Insurance Company.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

Sheila Flewallen Crna 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 ID6608006978

PECOS Enrollment IDI20140306000594

Medicare Billing Reassignments

Medicare enrollment records show Sheila Flewallen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cardiovascular Anesthesiologists PC

Same address

Critical Care Medicine

4230 HARDING PIKE STE 435
Nashville, TN 37205

Reassigned Medicare billing, Tennessee enrollment
164 clinicians in this Medicare group

NPI 1912953381 (615) 385-3704

Anesthesia Medical Group, PC

2.1 mi

Anesthesiology

110 29TH AVE N, STE 301
Nashville, TN 37203

Reassigned Medicare billing, Tennessee enrollment
Medicare enrollment name: Anesthesia Medical Group, P.C.
757 clinicians in this Medicare group

NPI 1215932413 (615) 327-4304

Columbia Anesthesia Services LLC

38 mi

Anesthesiology

1224 TROTWOOD AVE
Columbia, TN 38401

Reassigned Medicare billing, Tennessee enrollment
55 clinicians in this Medicare group

NPI 1538098033 (660) 826-5960

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 6

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 x-ray or radiation therapy 01922

Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.

42 services42 patients

Anesthesia for procedure to assess heart electrical activity 00537

Anesthesia for a procedure to assess heart electrical activity helps ensure comfort and relaxation. It involves administering medication that either numbs a specific area or makes you sleep temporarily. This allows doctors to safely examine your heart's electrical signals without causing discomfort.

35 services35 patients

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

16 services15 patients

Anesthesia for procedure to correct abnormal heart rhythm 00410

Anesthesia for a procedure to correct abnormal heart rhythm ensures you won't feel pain during the treatment. It can be general, where you're completely asleep, or local, numbing only a specific area. Your vital signs are monitored to ensure safety during the procedure.

14 services14 patients

Anesthesia for x-ray on artery of brain, heart, or chest 01926

Anesthesia is given before an x-ray of the brain, heart, or chest artery to ensure comfort and stillness. It helps to eliminate discomfort or pain during the procedure. It's administered by a trained professional, ensuring a safe and smooth procedure.

13 services13 patients

Anesthesia for insertion of permanent heart pacemaker 00530

Anesthesia for a permanent heart pacemaker insertion helps to ensure comfort and calmness during the procedure. It's typically a local anesthetic, numbing the area where the pacemaker is inserted. Sedation may also be given to help you relax. You'll be awake, but may not remember the procedure.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Maury Regional Hospital

Acute Care Hospitals · Columbia, TN

3/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number440073

Location1224 Trotwood AveColumbia, TN 38401 · Maury County

Emergency services Birthing friendly

Tristar Centennial Medical Center

Acute Care Hospitals · Nashville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440161

Location2300 Patterson StreetNashville, TN 37203 · Davidson County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37205 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

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$66.01 typical visit price

range $16.72 – $131.41

Typical copayment $16.50 (range $4.18 – $32.85)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

59.46/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

52.31

Improvement Activities

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. DAVID STEIGER M.D.

Internal Medicine (Critical Care Medicine)