DR. RACHEL LAUREN STEWART D.O.
NPI 1306166921
Pathology - Clinical Pathology in Reno, NV

Q: What is Rachel Stewart's NPI number?

The NPI number for Rachel Stewart is 1306166921. It was assigned to this individual provider in the NPPES registry on June 4, 2010.

Q: What is Rachel Stewart's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology, with taxonomy code 207ZC0006X.

Q: When was this NPI record last updated?

The NPPES record for Rachel Stewart was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 June 04, 2010PECOS EnrolledAccepts Medicare Assignment

1155 MILL ST, RENO, NV 89502(775) 982-4545(775) 982-4546 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 4, 2026, Jun 11, 2025, May 28, 2019 and 1 more (4 updates tracked since 2018).

On this page

About Dr. Rachel Lauren Stewart D.o. NPPES

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

DR. RACHEL LAUREN STEWART D.O. (NPI 1306166921) is an individual clinical pathology provider in Reno, Nevada, licensed in Nevada (DO4183) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, is affiliated with Vanderbilt University Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1306166921

Entity TypeIndividualFemale

Primary Taxonomy207ZC0006X

Provider Legal NameDR. RACHEL LAUREN STEWARTCredential: D.O.

Location Address1155 MILL STReno, NV 89502-1576

Mailing Address1155 Mill St # M-14Reno, NV 89502-1576 · (775) 982-5262 · Fax (775) 982-5496

Phone(775) 982-4545

Fax(775) 982-4546

Sole ProprietorNo

Medical School CMSTouro Un College Of Osteopathic Medicine, VallejoGraduated 2010

Enumeration DateJune 4, 2010

Last NPPES UpdateAugust 4, 20264 updates tracked since enumeration

NPPES CertifiedAugust 4, 2026

✔ NPI 1306166921 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPathology · Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZC0006X

License✔ Licensed in NV · DO4183

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Also ListedPathology · Molecular Genetic PathologyTaxonomy 207ZP0007X · License 03806 (KY), DO4183 (NV)

Also ListedPathology · Anatomic Pathology & Clinical PathologyTaxonomy 207ZP0102X · License 6155 (TN), 03806 (KY)

1155 MILL ST, Reno, NV 89502

Open in Google Maps ↗

Secondary Practice Locations 2

Location 1800 Rose St # MS 117Lexington, KY 40536-0298 · Phone (859) 323-5425

Location 23601 The Vanderbilt ClinicNashville, TN 37232-0298 · Phone (615) 322-5000

Accepted Insurance

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

Dr. Rachel Lauren Stewart D.o. 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 ID6204182116

PECOS Enrollment IDI20250630000508

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

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

Mackey, O'donnell And Palosaari, Ltd

Same address

Anatomic Pathology & Clinical Pathology

1155 MILL ST
Reno, NV 89502

Reassigned Medicare billing, Nevada enrollment
Medicare enrollment name: Sierra Pathology Associates, Inc
11 clinicians in this Medicare group

NPI 1235221276 (775) 982-4545

Vanderbilt University Medical Center

1,809 mi

Internal Medicine

1301 22ND AVE S
Nashville, TN 37232

Reassigned Medicare billing, Tennessee enrollment
4,711 clinicians in this Medicare group

NPI 1104202761 (615) 936-2000

Kentucky Medical Services Foundation, Inc

1,899 mi

Internal Medicine

2333 ALUMNI PARK PLZ, SUITE 200
Lexington, KY 40517

Reassigned Medicare billing, Kentucky enrollment
1,502 clinicians in this Medicare group

NPI 1326091448 (859) 257-7910

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.

Vanderbilt University Medical Center

Acute Care Hospitals · Nashville, TN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440039

Location1211 Medical Center DriveNashville, TN 37232 · Davidson County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89502 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

$131.25 typical visit price

range $57.07 – $173.24

Typical copayment $32.81 (range $14.26 – $43.31)

Most-billed visit code 99204

Established Patient

$100.60 typical visit price

range $18.27 – $140.96

Typical copayment $25.15 (range $4.56 – $35.24)

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 20

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

JENNA RASSUCHINE

Emergency Medicine

1155 MILL ST
RENO, NV 89502

Washoe County (775) 324-4040

NICHOLAS ROSE MD

Radiology (Vascular & Interventional Radiology)

1155 MILL ST
RENO, NV 89502

Washoe County (775) 327-5174

DR. BROOKE TAYLOR TOLLER PHARMD

Pharmacist (Ambulatory Care)

1155 MILL ST
RENO, NV 89502

Washoe County (775) 982-4406

CORINNE E JOHNSON GARNER RN, APRN

Registered Nurse (Neonatal Intensive Care)

1155 MILL ST
RENO, NV 89502

Washoe County (775) 982-7890

DR. THOMAS S. DAVEE M.D.

Internal Medicine (Cardiovascular Disease)

1155 MILL ST
RENO, NV 89502

Washoe County (775) 982-7878

DR. CHRISTIE ELLIOTT MD

Pathology (Anatomic Pathology & Clinical Pathology)

1155 MILL ST
RENO, NV 89502

Washoe County (775) 982-4545

LEAH KATHLEEN MACHEN M.D.

Hospitalist

1155 MILL ST
RENO, NV 89502

Washoe County (775) 982-7878

HAMAD RASHID ASHRAF MD

Hospitalist

1155 MILL ST
RENO, NV 89502

Washoe County (775) 982-7878

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 Rachel Stewart's NPI number?

The NPI number for Rachel Stewart is 1306166921. It was assigned to this individual provider in the NPPES registry on June 4, 2010.

Where is Rachel Stewart located?

Rachel Stewart practices at 1155 Mill St, Reno, NV 89502. The listed phone number is (775) 982-4545.

What is Rachel Stewart's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology, with taxonomy code 207ZC0006X.

Is Rachel Stewart enrolled in Medicare?

Yes. Rachel Stewart 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 Rachel Stewart's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Stewart reassigns Medicare benefits to 3 organizations: Mackey, O'donnell And Palosaari, Ltd (Reno, NV), Vanderbilt University Medical Center (Nashville, TN) and Kentucky Medical Services Foundation, Inc (Lexington, KY). 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 Rachel Stewart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rachel Stewart accept?

Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Buckeye Health Plan and Ambetter of Tennessee list Rachel Stewart 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 Rachel Stewart affiliated with any hospitals?

According to CMS data, Rachel Stewart is affiliated with Vanderbilt University Medical Center.

When was this NPI record last updated?

The NPPES record for Rachel Stewart was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.