1. Home
  2. Directory
  3. Vermont
  4. S Burlington
  5. Internal Medicine
  6. NPI Profile

HILLEMANN & KIRWAN MDS PC
NPI 1285932061
Internal Medicine - Cardiovascular Disease in S Burlington, VT

Active since March 03, 2011
50 TIMBER LN, S BURLINGTON, VT 05403(802) 862-6312(802) 658-3984 Get Directions Write a Review

NPPES record last updated: March 3, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Hillemann & Kirwan Mds Pc NPPES

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

HILLEMANN & KIRWAN MDS PC (NPI 1285932061) is a healthcare organization registered as a cardiovascular disease in S Burlington, Vermont and active in the NPI registry since March 2011. The organization lists Steffan Hillemann, Owner, as its authorized official.

NPPES Registry Identity

NPI1285932061
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameHILLEMANN & KIRWAN MDS PC
Location Address50 TIMBER LNS Burlington, VT 05403-7204
Mailing Address50 Timber LnS Burlington, VT 05403-7204 · (802) 862-6312 · Fax (802) 658-3984
Phone(802) 862-6312
Fax(802) 658-3984
Organization SubpartNo
Authorized OfficialSteffan HillemannOwner · (802) 862-6312
Enumeration DateMarch 3, 2011
✔ NPI 1285932061 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
50 TIMBER LN, S Burlington, VT 05403
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hillemann & Kirwan Mds Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Hillemann & Kirwan Mds PC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Megan Houston, A.P.R.N.
Nurse Practitioner
NPI 1083001713
50 TIMBER LN
South Burlington, VT 05403
(802) 862-6312
✔ PECOS✔ Accepts MedicareSame address
Janet Kirwan, MD
Cardiovascular Disease (Cardiology)
NPI 1295757425
50 TIMBER LN
South Burlington, VT 05403
(800) 243-5854
✔ PECOSSame address
Steffen Hillemann, MD
Cardiovascular Disease (Cardiology)
NPI 1821056912
364 DORSET ST SUITE 1
South Burlington, VT 05403
(802) 862-6312
✔ PECOS0.9 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 Hillemann & Kirwan Mds PC's NPI number?

The NPI number for Hillemann & Kirwan Mds PC is 1285932061. It was assigned to this organization in the NPPES registry on March 3, 2011.

Where is Hillemann & Kirwan Mds PC located?

Hillemann & Kirwan Mds PC is located at 50 Timber Ln, S Burlington, VT 05403. The listed phone number is (802) 862-6312.

What is Hillemann & Kirwan Mds PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Hillemann & Kirwan Mds PC enrolled in Medicare?

Yes. Hillemann & Kirwan Mds PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hillemann & Kirwan Mds PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Hillemann & Kirwan Mds PC, in Cardiovascular Disease (Cardiology) and Nurse Practitioner. 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. Of these, 2 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Hillemann & Kirwan Mds PC accept?

Health plans from Anthem Blue Cross and Blue Shield list Hillemann & Kirwan Mds PC 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.

When was this NPI record last updated?

The NPPES record for Hillemann & Kirwan Mds PC was last updated on March 3, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.