GARY DUMONTIER (M.D.) – Internal Medicine Physician, NPI 1437192481
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,190 INTERNAL MEDICINE in MO
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Provider Addresses for GARY DUMONTIER (M.D.)
901, Patients First Drive, Downtown Washington, Washington, Franklin County, Missouri, 63090, United States
WASHINGTON, MO 630904700
Phone: (636) 239-7500
Fax: (636) 239-2836
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 22 Open Payments records for all available years, with a total value of $403.
Total Amount is formed as General ($403) + Research ($0) + Ownership ($0) = $403.
Last reported payment date: 2024-12-04 • Largest payer in this snapshot: ABBVIE INC. ($327).
Total Amount
$403
General + Research + Ownership
Payments
22
Total payment records
General Amount
$403
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-04
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-08-23
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040823000565 | I | Internal Medicine | MO | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 546 | 241 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 125 | 125 | $0 |
| G0008 | Administration of influenza virus vaccine | 84 | 83 | $0 |
| 90662 | Influenza vaccine split virus, preservative free | 72 | 72 | $0 |
| 0124A | Adm sarscv2 bvl 30mcg/.3ml a | 69 | 69 | $0 |
Insurance plans in this area (ZIP 63090)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MO | |
| Internal Medicine | MO | |
| Nurse Practitioner | MO | |
| - | MO | |
| - | IL | |
| - | MO | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MO | |
| Physical Medicine And Rehabilitation | MO | |
| - | MO | |
| Nurse Practitioner | MO |
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