Kelly D. Gage, M.D.
Internal Medicine Physician · St Louis, MO
Kelly D. Gage, M.D. is an internal medicine physician with a practice address in St Louis, Missouri, and NPI 1710930219, issued on May 18, 2006. Check the license (Missouri R6J64, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Kelly D. Gage
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R6J64 MO
Self-reported in NPPES; status is on the state search - Practice location
- 3844 S Lindbergh Blvd., St Louis, MO 63127
- Phone
- (314) 698-2500
- Enumerated
- May 18, 2006
- Record last updated
- Apr 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (314) 698-2323
- Medicare enrollment
- Enrolled (PECOS I20100915000516); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1987
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 3844 S Lindbergh Blvd.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Bettonville, M.D.Internal Medicine Physician1144273657
Verify Kelly D. Gage in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license R6J64Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.0 times the Medicare Part D claims of the average internal medicine physician in 2024
15,971 Medicare Part D claims for 1,288 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 845 claims were for opioids.
Most prescribed
- Atorvastatin Calcium916 claims
- Lisinopril658 claims
- Omeprazole537 claims
- Levothyroxine Sodium529 claims
- Amlodipine Besylate524 claims
- Pravastatin Sodium390 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 one group practice
- Mercy Clinic East CommunitiesSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kelly D. Gage among 2,604 internal medicine physician records in Missouri
Kelly D. Gage, M.D. is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1987 · median 2006 among the 1,443 with a school on file
- Record last updated2014 · 48% 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 Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 internal medicine physician records list a practice address in St Louis
They are 58 of the 1,420 NPPES records with a practice address in St Louis, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in St Louis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Peter Bettonville, M.D.St Louis, MO 631271144273657
- Amita Bhalla, M.D.Saint Louis, MO 631271396754842
- Sirisha Brosch, M.D.Saint Louis, MO 631271215197173
- Mary Ehlman, MDSaint Louis, MO 631271235579012
- Chisom Eze, MDSaint Louis, MO 631271821527649
- Robert Fischer, M.D.St Louis, MO 631271548214455
- Justin Huynh, M.D.Saint Louis, MO 631271902096613
- Howard Kohn, MDSaint Louis, MO 631271053496745
Common questions
What is Kelly D. Gage, M.D.'s NPI number?
Kelly D. Gage, M.D.'s National Provider Identifier (NPI) is 1710930219, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kelly D. Gage, M.D. located?
The NPPES record lists a practice address at 3844 S Lindbergh Blvd., St Louis, MO, 63127. Phone: (314) 698-2500. Providers update this record themselves, so call before visiting.
How can I verify Kelly D. Gage, M.D.'s license?
NPPES lists Missouri license number R6J64, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kelly D. Gage, M.D. prescribe under Medicare Part D?
In 2024, Kelly D. Gage, M.D. had 15,971 Medicare Part D claims for 1,288 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.