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DR. GERARD LIVAUDAIS GUILLORY M.D.
NPI 1235166315
Internal Medicine in Aurora, CO

Active since June 26, 2006PECOS Enrolled
750 POTOMAC STREET, SUITE 111, AURORA, CO 80011(303) 343-3121(303) 343-2514 Get Directions Write a Review

NPPES record last updated: March 4, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Gerard Livaudais Guillory M.d. NPPES

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

DR. GERARD LIVAUDAIS GUILLORY M.D. (NPI 1235166315) is an individual internal medicine provider in Aurora, Colorado, licensed in Colorado (26649) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235166315
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GERARD LIVAUDAIS GUILLORYCredential: M.D.
Location Address750 POTOMAC STREET, SUITE 111Aurora, CO 80011-6795
Mailing Address750 Potomac Street, Suite 111Aurora, CO 80011-6795 · (303) 343-3121 · Fax (303) 343-2514
Phone(303) 343-3121
Fax(303) 343-2514
Sole ProprietorNo
Enumeration DateJune 26, 2006
Last NPPES UpdateMarch 4, 2014
✔ NPI 1235166315 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CO · 26649
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
750 POTOMAC STREET, Aurora, CO 80011
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Other Identifiers 4

Medicare PINC474148CO
Other110238248CO · Railroad Medicare
Medicaid01266493CO
Medicare UPIND24826CO

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gerard Livaudais Guillory M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Gerard Guillory reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

New West Physicians Inc
3.6 mi
Family Medicine
2230 S FRASER ST UNIT 1
Aurora, CO 80014
  • Reassigned Medicare billing, Colorado enrollment
  • 142 clinicians in this Medicare group
NPI 1528676517 (303) 341-4200

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80011 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
$132.55 typical visit price
range $58.06 – $174.82
Typical copayment $33.13 (range $14.51 – $43.70)
Most-billed visit code 99204
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
6 suppliers11 claims66 services$1.95 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers27 claims27 services$66.11 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
1 supplier24 claims24 services$32.52 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Gerard Guillory's NPI number?

The NPI number for Gerard Guillory is 1235166315. It was assigned to this individual provider in the NPPES registry on June 26, 2006.

Where is Gerard Guillory located?

Gerard Guillory practices at 750 Potomac Street Suite 111, Aurora, CO 80011. The listed phone number is (303) 343-3121.

What is Gerard Guillory's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gerard Guillory enrolled in Medicare?

Yes. Gerard Guillory is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gerard Guillory's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gerard Guillory reassigns Medicare benefits to New West Physicians Inc (Aurora, CO). The 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 Gerard Guillory's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gerard Guillory was last updated on March 4, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.