OLIVIA E MCMILLAN CRNA
NPI 1609603745
Nurse Anesthetist, Certified Registered in Chattanooga, TN

Active since September 13, 2024Accepts Medicare Assignment
2525 DESALES AVE, CHATTANOOGA, TN 37404(423) 206-5150 Get Directions Write a Review

NPPES record last updated: January 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 13, 2026, Sep 13, 2024 (2 updates tracked since 2024).

About Olivia E Mcmillan Crna NPPES

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

OLIVIA E MCMILLAN CRNA (NPI 1609603745) is an individual nurse anesthetist, certified registered in Chattanooga, Tennessee, licensed in Tennessee (38184) and active in the NPI registry since September 2024. She is affiliated with Memorial Healthcare System, Inc and is a graduate of Other (2024).

NPPES Registry Identity

NPI1609603745
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameOLIVIA E MCMILLANCredential: CRNA
Location Address2525 DESALES AVEChattanooga, TN 37404-1161
Mailing Address826 Belvoir TerChattanooga, TN 37412-2008 · (317) 869-5938
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateSeptember 13, 2024
Last NPPES UpdateJanuary 13, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 13, 2026
✔ NPI 1609603745 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 TN · 38184
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.
2525 DESALES AVE, Chattanooga, TN 37404

Other Names 1

Former Name (1)Olivia Drake Crna

Accepted 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

Olivia E Mcmillan 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 ID1658894829
PECOS Enrollment IDI20250327004030, I20260414001047

Medicare Billing Reassignment

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

Internal Medicine
5600 BRAINERD RD, SUITE 500
Chattanooga, TN 37411
  • Reassigned Medicare billing, Georgia and Tennessee enrollments
  • 242 clinicians in this Medicare group

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

Hospital Affiliations CMS Care Compare

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

Memorial Healthcare System, Inc

Acute Care Hospitals · Chattanooga, TN
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number440091
Location2525 Desales AveChattanooga, TN 37404 · Hamilton County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37404 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.

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.

Pharmacist
2525 DESALES AVE
CHATTANOOGA, TN 37404
Radiology (Diagnostic Radiology)
2525 DESALES AVE
CHATTANOOGA, TN 37404
Nurse Anesthetist, Certified Registered
2525 DESALES AVE
CHATTANOOGA, TN 37404
Nurse Anesthetist, Certified Registered
2525 DESALES AVE
CHATTANOOGA, TN 37404
Nurse Practitioner (Family)
2525 DESALES AVE
CHATTANOOGA, TN 37404
Clinical Exercise Physiologist
2525 DESALES AVE
CHATTANOOGA, TN 37404
Family Medicine
2525 DESALES AVE
CHATTANOOGA, TN 37404
Nurse Practitioner (Acute Care)
2525 DESALES AVE
CHATTANOOGA, TN 37404

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 Olivia Mcmillan's NPI number?

The NPI number for Olivia Mcmillan is 1609603745. It was assigned to this individual provider in the NPPES registry on September 13, 2024. The provider is also known as Olivia Drake Crna.

Where is Olivia Mcmillan located?

Olivia Mcmillan practices at 2525 Desales Ave, Chattanooga, TN 37404. The listed phone number is (423) 206-5150.

What is Olivia Mcmillan's specialty?

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

Is Olivia Mcmillan enrolled in Medicare?

Yes. Olivia Mcmillan 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 organization bills Medicare for Olivia Mcmillan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Olivia Mcmillan reassigns Medicare benefits to Memorial Health Partners Foundation, Inc (Chattanooga, TN). 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 Olivia Mcmillan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Olivia Mcmillan accept?

Health plans from Alliant Health Plans, Inc. and UnitedHealthcare list Olivia Mcmillan 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 Olivia Mcmillan affiliated with any hospitals?

According to CMS data, Olivia Mcmillan is affiliated with Memorial Healthcare System, Inc.

When was this NPI record last updated?

The NPPES record for Olivia Mcmillan was last updated on January 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.