DR. RACHAEL A MERGENMEIER (D.O.) – Family Medicine Physician, NPI 1518957265
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,332 FAMILY PRACTICE in MO
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Provider Addresses for DR. RACHAEL A MERGENMEIER (D.O.)
747, North New Ballas Road, Creve Coeur, Saint Louis County, Missouri, 63141, United States
CREVE COEUR, MO 631416715
Phone: (314) 991-3030
Fax: (314) 991-3031
Type: Mailing
PO BOX 776084
CHICAGO, IL 606776084
Phone:
Type: Mailing
107 PIPER HILL DR
SAINT PETERS, MO 633761651
Phone: (636) 939-3648
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 11 Open Payments records for all available years, with a total value of $414.
Total Amount is formed as General ($414) + Research ($0) + Ownership ($0) = $414.
Last reported payment date: 2024-10-01 • Largest payer in this snapshot: Lilly USA, LLC ($238).
Total Amount
$414
General + Research + Ownership
Payments
11
Total payment records
General Amount
$414
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-01
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Lilly USA, LLC | $238 |
| Novo Nordisk Inc | $176 |
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: 2008-10-22
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 |
|---|---|---|---|---|
| I20081022000515 | I | Family Practice | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 63141)
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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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