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TRISTAR GYNECOLOGY ONCOLOGY, LLC
NPI 1003152208
Obstetrics & Gynecology - Gynecologic Oncology in Nashville, TN

Active since December 17, 2012
330 23RD AVE N, SUITE 600, NASHVILLE, TN 37203(615) 340-4640(615) 340-4642 Get Directions Write a Review

NPPES record last updated: September 15, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Tristar Gynecology Oncology, Llc NPPES

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

TRISTAR GYNECOLOGY ONCOLOGY, LLC (NPI 1003152208) is a healthcare organization registered as a gynecologic oncology in Nashville, Tennessee and active in the NPI registry since December 2012. The organization lists Dan Sykes, Authorized Official, as its authorized official.

NPPES Registry Identity

NPI1003152208
Entity TypeOrganization
Primary Taxonomy207VX0201X
Legal Business NameTRISTAR GYNECOLOGY ONCOLOGY, LLC
Location Address330 23RD AVE N, SUITE 600Nashville, TN 37203-1534
Mailing Address330 23rd Ave N, Suite 600Nashville, TN 37203-1534 · (615) 340-4640 · Fax (615) 340-4642
Phone(615) 340-4640
Fax(615) 340-4642
Organization SubpartNo
Authorized OfficialDan SykesAuthorized Official · (615) 342-6878
Enumeration DateDecember 17, 2012
Last NPPES UpdateSeptember 15, 2016
✔ NPI 1003152208 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
Definition
An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.
Also ListedNurse PractitionerTaxonomy 363L00000X
330 23RD AVE N, Nashville, TN 37203
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tristar Gynecology Oncology, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Tristar Gynecology Oncology, LLC, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Bethany Bowman, NP-C
Nurse Practitioner
NPI 1518601277
330 23RD AVE N STE 600
Nashville, TN 37203
(615) 340-4640
✔ PECOSSame address
Catherine Walker
Nurse Practitioner
NPI 1255749560
330 23RD AVE N STE 600
Nashville, TN 37203
(615) 340-4640
✔ PECOS✔ Accepts MedicareSame address
Aaron Nizam, M.D.
Obstetrics/Gynecology
NPI 1932593456
330 23RD AVE N STE 600
Nashville, TN 37203
(615) 340-4640
✔ PECOS✔ Accepts MedicareSame address
Thomas Numnum, M.D.
Gynecological Oncology
NPI 1346270014
330 23RD AVE N STE 600
Nashville, TN 37203
(615) 340-4640
✔ PECOS✔ Accepts MedicareSame address
Stephanie Sullivan, MD
Obstetrics/Gynecology
NPI 1902197288
330 23RD AVE N STE 600
Nashville, TN 37203
(615) 340-4640
✔ PECOS✔ Accepts MedicareSame address
Robin Lane, FNP
Nurse Practitioner
NPI 1962685008
3601 THE VANDERBILT CLINIC
Nashville, TN 37232
(615) 322-3000
✔ PECOS✔ Accepts Medicare0.8 mi

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

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 Tristar Gynecology Oncology, LLC's NPI number?

The NPI number for Tristar Gynecology Oncology, LLC is 1003152208. It was assigned to this organization in the NPPES registry on December 17, 2012.

Where is Tristar Gynecology Oncology, LLC located?

Tristar Gynecology Oncology, LLC is located at 330 23rd Ave N Suite 600, Nashville, TN 37203. The listed phone number is (615) 340-4640.

What is Tristar Gynecology Oncology, LLC's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

Is Tristar Gynecology Oncology, LLC enrolled in Medicare?

Yes. Tristar Gynecology Oncology, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Tristar Gynecology Oncology, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Tristar Gynecology Oncology, LLC. A 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 the clinician's services. The largest specialties are Nurse Practitioner (3), Obstetrics/Gynecology (2) and Gynecological Oncology (1). Of these, 5 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Tristar Gynecology Oncology, LLC was last updated on September 15, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.