Julie K. Gammack, MD
Geriatric Medicine (Internal Medicine) Physician · St Louis, MO
Julie K. Gammack, MD is a geriatric medicine (internal medicine) physician with a practice address in St Louis, Missouri, and NPI 1518975366, issued on Aug 4, 2006. Check the license (Missouri 2003020128, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Julie K. Gammack
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 2003020128 MO
Self-reported in NPPES; status is on the state search - Practice location
- Center For Specialized Medicine, St Louis, MO 63104
- Phone
- (314) 977-6055
- Enumerated
- Aug 4, 2006
- Record last updated
- Mar 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (314) 977-3370
- Medicare enrollment
- Enrolled (PECOS I20050128000630); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1996
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 75 in Missouri → Look up another NPI →
Also registered at Center For Specialized Medicine
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fadee Abu Al Rub, MDNephrology Physician1790992675
Verify Julie K. Gammack 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 2003020128Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
6,976 Medicare Part D claims for 357 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 285 claims were for opioids.
Most prescribed
- Atorvastatin Calcium425 claims
- Lisinopril337 claims
- Eliquis296 claims
- Amlodipine Besylate244 claims
- Gabapentin190 claims
- Losartan Potassium173 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Ssm Health Care GroupSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Julie K. Gammack among 75 geriatric medicine (internal medicine) physician records in Missouri
Julie K. Gammack, MD is one of 75 geriatric medicine (internal medicine) physician records with a practice address in Missouri. 72% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 40% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1996 · median 1997 among the 34 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Missouri
There are 75 geriatric medicine (internal medicine) physician records in Missouri.
All 75 in Missouri → Every provider in St Louis → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Nazem Bassil, M.D,Saint Louis, MO 631041235320045
- Ahmed El-Sabbagh, M.D.Saint Louis, MO 631041376917781
- Nour Ibrahim, MDSaint Louis, MO 631041336029032
- Gerald Mahon, M.D.Saint Louis, MO 631041154302289
- Lina Toledo-Franco, MDSaint Louis, MO 631041073763017
- William Banks, M.D.Saint Louis, MO 631061023062296
- Rajagopal Chadaga, MDSaint Louis, MO 631061760416598
- Rekha Devkota, M.DSaint Louis, MO 631061184826455
Common questions
What is Julie K. Gammack, MD's NPI number?
Julie K. Gammack, MD's National Provider Identifier (NPI) is 1518975366, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Julie K. Gammack, MD located?
The NPPES record lists a practice address at Center For Specialized Medicine, St Louis, MO, 63104. Phone: (314) 977-6055. Providers update this record themselves, so call before visiting.
How can I verify Julie K. Gammack, MD's license?
NPPES lists Missouri license number 2003020128, 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 Julie K. Gammack, MD prescribe under Medicare Part D?
In 2024, Julie K. Gammack, MD had 6,976 Medicare Part D claims for 357 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is Julie K. Gammack, MD's MIPS final score?
The 2023 MIPS final score is 81.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.