Gillian Teresa Alonzo Gascon, DO
Student in an Organized Health Care Education/Training Program · Saint Louis, MO
Gillian Teresa Alonzo Gascon, DO is a student in an organized health care education/training program with a practice address in Saint Louis, Missouri, and NPI 1629837091, issued on Mar 18, 2024. Check the license with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gillian Teresa Alonzo Gascon
- Credential
- DO
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 1402 S Grand Blvd RM M260, Saint Louis, MO 63104
- Phone
- (314) 617-2359
- Enumerated
- Mar 18, 2024
- Record last updated
- Mar 18, 2024
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 3,622 in Missouri → Look up another NPI →
Also registered at 1402 S Grand Blvd RM M260
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nadine AbdeljabbarStudent in an Organized Health Care Education/Training Program1437092020
- Leora Abrams, MDStudent in an Organized Health Care Education/Training Program1760283139
- Amer Avdagic, MDStudent in an Organized Health Care Education/Training Program1265292387
- Michael Carey, MDStudent in an Organized Health Care Education/Training Program1023711454
- Miles CharlesStudent in an Organized Health Care Education/Training Program1154162840
- Kristen DoughertyStudent in an Organized Health Care Education/Training Program1235690009
Verify Gillian Teresa Alonzo Gascon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
20 Medicare Part D claims, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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.
Gillian Teresa Alonzo Gascon among 3,622 student in an organized health care education/training program records in Missouri
Gillian Teresa Alonzo Gascon, DO is one of 3,622 student in an organized health care education/training program records with a practice address in Missouri. 22% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 36% of them.
- NPI issued2024 · 36% of these records are older, 48% newer
- In a Medicare fileYes · 22% of these records are
- In the CMS Doctors and Clinicians fileNo · 2% of these records are
- Record last updated2024 · 13% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,338 student in an organized health care education/training program records list a practice address in Saint Louis
They are 1,338 of the 27,605 NPPES records with a practice address in Saint Louis, and 3,622 student in an organized health care education/training program records in Missouri.
All 3,622 in Missouri → Every provider in Saint Louis → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Mustafa Altinyay, MDSaint Louis, MO 631041356674246
- Sharmistha Barai, M.D.Saint Louis, MO 631041497984173
- Arshad Bhatt, M.D.Saint Louis, MO 631041215138698
- Joseph Dasso, M.D, PH.D.Saint Louis, MO 631041972706505
- Avrum Goldberg, DDSSaint Louis, MO 631041225343858
- Josh LanterSaint Louis, MO 631041710180609
- Jamal Maarouf, M.D.Saint Louis, MO 631041205169638
- Lynn Nelms, M.D.Saint Louis, MO 631041881892503
Common questions
What is Gillian Teresa Alonzo Gascon, DO's NPI number?
Gillian Teresa Alonzo Gascon, DO's National Provider Identifier (NPI) is 1629837091, issued on Mar 18, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Gillian Teresa Alonzo Gascon, DO located?
The NPPES record lists a practice address at 1402 S Grand Blvd RM M260, Saint Louis, MO, 63104. Phone: (314) 617-2359. Providers update this record themselves, so call before visiting.
How can I verify Gillian Teresa Alonzo Gascon, DO's license?
Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Gillian Teresa Alonzo Gascon, DO prescribe under Medicare Part D?
In 2024, Gillian Teresa Alonzo Gascon, DO had 20 Medicare Part D claims; the average among student in an organized health care education/training program prescribers was 185. 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.