Gerard Livaudais Guillory, M.D.
Internal Medicine Physician · Aurora, CO
Gerard Livaudais Guillory, M.D. is an internal medicine physician with a practice address in Aurora, Colorado, and NPI 1235166315, issued on Jun 26, 2006. Check the license (Colorado 26649, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gerard Livaudais Guillory
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 26649 CO
Self-reported in NPPES; status is on the state search - Practice location
- 750 Potomac Street, Aurora, CO 80011
- Phone
- (303) 343-3121
- Enumerated
- Jun 26, 2006
- Record last updated
- Mar 4, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (303) 343-2514
- Medicaid ID
- 01266493 CO
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Verify Gerard Livaudais Guillory in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 26649Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
89 Medicare Part D claims for 46 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gerard Livaudais Guillory among 2,046 internal medicine physician records in Colorado
Gerard Livaudais Guillory, M.D. is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2014 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
244 internal medicine physician records list a practice address in Aurora
They are 244 of the 17,400 NPPES records with a practice address in Aurora, and 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Aurora → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jason Cadwallader, MDAurora, CO 800111942467469
- James Geyman, MDAurora, CO 800111750425559
- Christine Jones, MDAurora, CO 800111821102492
- Kimberly RhoadesAurora, CO 800111639213416
- Christiana Shoushtari, MD, MPHAurora, CO 800111265938906
- Jennifer Ziouras, MDAurora, CO 800111619976099
- Stephen Alix, M.D.Aurora, CO 800121063473361
- Douglas Altschuler, DOAurora, CO 800121770542177
Common questions
What is Gerard Livaudais Guillory, M.D.'s NPI number?
Gerard Livaudais Guillory, M.D.'s National Provider Identifier (NPI) is 1235166315, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gerard Livaudais Guillory, M.D. located?
The NPPES record lists a practice address at 750 Potomac Street, Aurora, CO, 80011. Phone: (303) 343-3121. Providers update this record themselves, so call before visiting.
How can I verify Gerard Livaudais Guillory, M.D.'s license?
NPPES lists Colorado license number 26649, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gerard Livaudais Guillory, M.D. prescribe under Medicare Part D?
In 2024, Gerard Livaudais Guillory, M.D. had 89 Medicare Part D claims for 46 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.