DARWIN L CONWELL (M.D.) – Gastroenterology Physician, NPI 1669438453
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
259 GASTROENTEROLOGY in KY
Provider Addresses for DARWIN L CONWELL (M.D.)
900 S LIMESTONE CTW 303
LEXINGTON, KY 405361559
Phone:
Type: Mailing
740 S LIMESTONE
LEXINGTON, KY 405361240
Phone: (859) 323-0079
Fax: (859) 257-6868
Type: Location
700, Ackerman Road, Columbus, Sharon, Franklin, Ohio, 43202, United States
SUITE 570
COLUMBUS, OH 432021559
Phone: (614) 293-6255
Type: Mailing
Wexner Medical Center at The Ohio State University, 410, West Tenth Avenue, University District District 4, Columbus, Franklin, Ohio, 43210, United States
COLUMBUS, OH 432101240
Phone: (614) 293-6255
Fax: (614) 293-8518
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $675.
Total Amount is formed as General ($675) + Research ($0) + Ownership ($0) = $675.
Last reported payment date: 2023-06-23 • Largest payer in this snapshot: PFIZER INC. ($675).
Total Amount
$675
General + Research + Ownership
Payments
1
Total payment records
General Amount
$675
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $675 |
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: 2022-05-11
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 |
|---|---|---|---|---|
| I20220511001180 | I | Gastroenterology | KY | 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 40536)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | OH | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 19 | 19 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | KY | |
| A N E S T H E S I O L O G Y | FL | |
| Pediatric Medicine | KY | |
| Internal Medicine | KY | |
| H O S P I T A L I S T | OH | |
| Critical Care (Intensivists), Pulmonary Disease | KY | |
| Interventional Radiology, Diagnostic Radiology | KY | |
| Internal Medicine | KY | |
| Thoracic Surgery, Cardiac Surgery | KY | |
| Pediatric Medicine, Internal Medicine | KY |
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