DR. ALEXANDER GAYLE PARKER (MD) – Emergency Medicine Physician, NPI 1689177743
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,351 EMERGENCY MEDICINE in MO
Provider Addresses for DR. ALEXANDER GAYLE PARKER (MD)
1400 US HIGHWAY 61
FESTUS, MO 630284100
Phone: (636) 933-1000
Type: Mailing
660, South Euclid Avenue, Central West End, City of Saint Louis, Missouri, 63110, United States
CAMPUS BOX 8072
SAINT LOUIS, MO 63110
Phone: (314) 747-4156
Type: Mailing
500 S Preston St Rm 305
Louisville, KY 402021702
Phone: (502) 852-8696
Type: Location
400 S Kingshighway Blvd
Saint Louis, MO 631101014
Phone: (314) 362-9123
Type: Location
South Kingshighway Boulevard, North Hampton, City of Saint Louis, Missouri, 63116, United States
SAINT LOUIS, MO 631101014
Phone: (314) 362-9123
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $80.
Total Amount is formed as General ($80) + Research ($0) + Ownership ($0) = $80.
Last reported payment date: 2024-07-16 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($80).
Total Amount
$80
General + Research + Ownership
Payments
3
Total payment records
General Amount
$80
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $80 |
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: 2024-04-01
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 |
|---|---|---|---|---|
| I20240401002322 | I | Emergency 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 63028)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | MO | |
| - | WI | |
| Emergency Medicine | IL | |
| Emergency Medicine | MO | |
| Emergency Medicine | IL | |
| Emergency Medicine | MO | |
| Emergency Medicine | OK | |
| Emergency Medicine, General Practice, Orthopedic Surgery, Sports Medicine | MO | |
| Emergency Medicine | MO | |
| Emergency Medicine | IL |
Reviews
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