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DR. SIERRA ARMBRUST DO
NPI 1235879461
Family Medicine in Chattanooga, TN

Active since March 29, 2022PECOS Enrolled
7380 VOLKSWAGEN DR STE 110, CHATTANOOGA, TN 37416(423) 778-8950(423) 778-8951 Get Directions Write a Review

NPPES record last updated: September 3, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Sierra Armbrust Do NPPES

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

DR. SIERRA ARMBRUST DO (NPI 1235879461) is an individual family medicine provider in Chattanooga, Tennessee, licensed in Tennessee (6087) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, is affiliated with Memorial Healthcare System, Inc, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1235879461
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. SIERRA ARMBRUSTCredential: DO
Location Address7380 VOLKSWAGEN DR STE 110Chattanooga, TN 37416-1761
Mailing Address7380 Volkswagen Dr Ste 110Chattanooga, TN 37416-1761 · (423) 778-8950 · Fax (423) 778-8951
Phone(423) 778-8950
Fax(423) 778-8951
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateMarch 29, 2022
Last NPPES UpdateSeptember 3, 2025
NPPES CertifiedSeptember 3, 2025
✔ NPI 1235879461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in TN · 6087
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
7380 VOLKSWAGEN DR STE 110, Chattanooga, TN 37416
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Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sierra Armbrust Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3678946944
PECOS Enrollment IDI20250811002210
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.

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

Erlanger Medical Center

Acute Care Hospitals · Chattanooga, TN
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number440104
Location975 E 3rd StChattanooga, TN 37403 · Hamilton County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37416 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
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
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 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. REBECCA ANN CARTER FNP
Nurse Practitioner (Family)
7380 VOLKSWAGEN DR STE 110
CHATTANOOGA, TN 37416
Hamilton County (423) 778-8950
KAYLEY GRACE MARVEL
Family Medicine
7380 VOLKSWAGEN DR STE 110
CHATTANOOGA, TN 37416
Hamilton County (253) 403-2938

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 Sierra Armbrust's NPI number?

The NPI number for Sierra Armbrust is 1235879461. It was assigned to this individual provider in the NPPES registry on March 29, 2022.

Where is Sierra Armbrust located?

Sierra Armbrust practices at 7380 Volkswagen Dr Ste 110, Chattanooga, TN 37416. The listed phone number is (423) 778-8950.

What is Sierra Armbrust's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Sierra Armbrust enrolled in Medicare?

Yes. Sierra Armbrust is registered in the Medicare PECOS enrollment system.

What insurance does Sierra Armbrust accept?

Health plans from Alliant Health Plans, Inc. and BlueCross BlueShield of Tennessee list Sierra Armbrust 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 Sierra Armbrust affiliated with any hospitals?

According to CMS data, Sierra Armbrust is affiliated with Memorial Healthcare System, Inc and Erlanger Medical Center.

When was this NPI record last updated?

The NPPES record for Sierra Armbrust was last updated on September 3, 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.