Andrew Gust Koustenis, MD
Internal Medicine Physician · Lexington, KY
Andrew Gust Koustenis, MD is an internal medicine physician with a practice address in Lexington, Kentucky, and NPI 1821559709, issued on Mar 25, 2019. Check the license on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Andrew Gust Koustenis
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 01090399A IN
Self-reported in NPPES; status is on the state search - Practice location
- 800 Rose St # C-246, Lexington, KY 40536
- Phone
- (859) 323-6162
- Enumerated
- Mar 25, 2019
- Record last updated
- Jul 6, 2023
- Fax
- (859) 257-8934
- Medicare enrollment
- Enrolled (PECOS I20230710003077); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,526 in Kentucky → Look up another NPI →
Also registered at 800 Rose St # C-246
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Andrew Gust Koustenis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical LicensureCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
118 Medicare Part D claims for 70 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass12 claims
- Atorvastatin Calcium11 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.
Bills Medicare through 2 group practices
- IU Health Medical Group LLCIndianapolis, IN
- University Family Physicians, Inc.Indianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Gust Koustenis among 1,526 internal medicine physician records in Kentucky
Andrew Gust Koustenis, MD is one of 1,526 internal medicine physician records with a practice address in Kentucky. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 84% of them.
- NPI issued2019 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2019 · median 2006 among the 1,025 with a school on file
- Record last updated2023 · 56% 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 Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
259 internal medicine physician records list a practice address in Lexington
They are 259 of the 14,031 NPPES records with a practice address in Lexington, and 1,526 internal medicine physician records in Kentucky.
All 1,526 in Kentucky → Every provider in Lexington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Angela Dearinger, MDLexington, KY 405361245244854
- Heidi EhrhardtLexington, KY 405361538126354
- Christopher Feddock, MDLexington, KY 405361831119510
- Jacqueline Fister, MDLexington, KY 405361356380026
- Wendy Garabedian, M.D.Lexington, KY 405361457337347
- Andrew Hoellein, MDLexington, KY 405361891719795
- David Mannino, MDLexington, KY 405361982628889
- Mary Meek, MDLexington, KY 405361629092366
Common questions
What is Andrew Gust Koustenis, MD's NPI number?
Andrew Gust Koustenis, MD's National Provider Identifier (NPI) is 1821559709, issued on Mar 25, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Gust Koustenis, MD located?
The NPPES record lists a practice address at 800 Rose St # C-246, Lexington, KY, 40536. Phone: (859) 323-6162. Providers update this record themselves, so call before visiting.
How can I verify Andrew Gust Koustenis, MD's license?
Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Andrew Gust Koustenis, MD prescribe under Medicare Part D?
In 2024, Andrew Gust Koustenis, MD had 118 Medicare Part D claims for 70 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.