1. Home
  2. Directory
  3. Tennessee
  4. Chattanooga
  5. Nurse Anesthetist Certified Registered
  6. NPI Profile

RACHAEL ANNE MACIVER CRNA, FNP-BC
NPI 1124544762
Nurse Anesthetist, Certified Registered in Chattanooga, TN

Active since August 15, 2017PECOS EnrolledAccepts Medicare Assignment
1909 SOUTH WILLOW STREET, CHATTANOOGA, TN 37404(423) 737-8206 Get Directions Write a Review

NPPES record last updated: March 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 19, 2026, Jul 21, 2022, Jan 20, 2022 and 1 more (4 updates tracked since 2017).

About Rachael Anne Maciver Crna, Fnp-bc NPPES

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

RACHAEL ANNE MACIVER CRNA, FNP-BC (NPI 1124544762) is an individual nurse anesthetist, certified registered in Chattanooga, Tennessee, licensed in Tennessee (22879) and active in the NPI registry since August 2017. She is enrolled in Medicare PECOS, is affiliated with Memorial Healthcare System, Inc, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1124544762
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameRACHAEL ANNE MACIVERCredential: CRNA, FNP-BC
Location Address1909 SOUTH WILLOW STREETChattanooga, TN 37404
Mailing Address2511 Fox Run DrSignal Mountain, TN 37377-1463 · (423) 737-8206
Phone(423) 737-8206
Sole ProprietorYes
Medical School CMSOtherGraduated 2017
Enumeration DateAugust 15, 2017
Last NPPES UpdateMarch 19, 20264 updates tracked since enumeration
NPPES CertifiedMarch 19, 2026
✔ NPI 1124544762 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 · 22879
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 ListedNurse PractitionerTaxonomy 363L00000X · License 22879 (TN)
1909 SOUTH WILLOW STREET, Chattanooga, TN 37404
Open in Google Maps ↗

Secondary Practice Locations 2

Location 12525 DeSales AveChattanooga, TN 37404-1161 · Phone (423) 206-5040
Location 22051 Hamill RdHixson, TN 37343-6614 · Phone (423) 206-5040

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc..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

Rachael Anne Maciver Crna, Fnp-bc 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 ID4587926779
PECOS Enrollment IDI20180328001764, I20220707002542
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

4

Medicare enrollment records show Rachael Maciver reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Anesthesiology Consultants Exchange, PC
2.0 mi
Anesthesiology
975 E 3RD ST
Chattanooga, TN 37403
  • Reassigned Medicare billing, Tennessee enrollment
  • 135 clinicians in this Medicare group
NPI 1184670218 (423) 602-8400
Memorial Health Partners Foundation, Inc
3.7 mi
Internal Medicine
5600 BRAINERD RD, SUITE 500
Chattanooga, TN 37411
  • Reassigned Medicare billing, Tennessee enrollment
  • 570 clinicians in this Medicare group
NPI 1922053545 (423) 495-6870
American Anesthesiology Of Tennessee, P.C.
99 mi
Nurse Anesthetist, Certified Registered
501 20TH ST, SUITE 606
Knoxville, TN 37916
  • Reassigned Medicare billing, Tennessee enrollment
  • Medicare enrollment name: American Anesthesiology Of Tennessee PC
  • 959 clinicians in this Medicare group
NPI 1245279777 (865) 546-8040
Curana Health Of Tennessee LLC
260 mi
Family
5865 RIDGEWAY CENTER PKWY
Memphis, TN 38120
  • Reassigned Medicare billing, Tennessee enrollment
  • 117 clinicians in this Medicare group
NPI 1750761060 (337) 991-9276

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 2

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

Parkridge Medical Center

Acute Care Hospitals · Chattanooga, TN
4/5 CMS rating
OwnershipProprietary
CMS Certification Number440156
Location2333 Mccallie AveChattanooga, TN 37404 · Hamilton County
Emergency services

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.

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 Rachael Maciver's NPI number?

The NPI number for Rachael Maciver is 1124544762. It was assigned to this individual provider in the NPPES registry on August 15, 2017.

Where is Rachael Maciver located?

Rachael Maciver practices at 1909 South Willow Street, Chattanooga, TN 37404. The listed phone number is (423) 737-8206.

What is Rachael Maciver's specialty?

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

Is Rachael Maciver enrolled in Medicare?

Yes. Rachael Maciver 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 Rachael Maciver's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachael Maciver reassigns Medicare benefits to 4 organizations: Anesthesiology Consultants Exchange, PC (Chattanooga, TN), Memorial Health Partners Foundation, Inc (Chattanooga, TN), American Anesthesiology Of Tennessee, P.C. (Knoxville, TN) and Curana Health Of Tennessee LLC (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 Rachael Maciver's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rachael Maciver accept?

Health plans from Alliant Health Plans, Inc. list Rachael Maciver 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 Rachael Maciver affiliated with any hospitals?

According to CMS data, Rachael Maciver is affiliated with Memorial Healthcare System, Inc and Parkridge Medical Center.

When was this NPI record last updated?

The NPPES record for Rachael Maciver was last updated on March 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.