MERVYN D DANILEWITZ (MD) – Gastroenterology Physician, NPI 1285682047
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for MERVYN D DANILEWITZ (MD)
1, West Elm Street, Conshohocken, Montgomery County, Pennsylvania, 19428, United States
SUITE 100
CONSHOHOCKEN, PA 194284108
Phone: (610) 567-6964
Fax: (610) 567-6955
Type: Mailing
Mercy Philadelphia Hospital, 501, South 54th Street, Garden Court, Philadelphia, Philadelphia County, Pennsylvania, 19143, United States
4 FLOOR
PHILADELPHIA, PA 191431900
Phone: (215) 748-9833
Fax: (215) 748-9864
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 $20.
Total Amount is formed as General ($20) + Research ($0) + Ownership ($0) = $20.
Last reported payment date: 2023-02-15 • Largest payer in this snapshot: Salix Pharmaceuticals, a division of Bausch Health US, LLC ($20).
Total Amount
$20
General + Research + Ownership
Payments
1
Total payment records
General Amount
$20
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-15
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | $20 |
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: 2004-03-17
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 |
|---|---|---|---|---|
| I20040317000777 | I | Gastroenterology | PA | 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 |
|---|---|---|---|---|
| G0121 | Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 32 | 32 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 32 | 31 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 27 | 27 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 24 | 24 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 23 | 23 | $0 |
Insurance plans in this area (ZIP 19428)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | PA | 45378 | Diagnostic examination of large bowel using an endoscope | 33 | 32 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| - | PA | |
| - | DE | |
| - | PA | |
| Thoracic Surgery | NJ | |
| - | PA | |
| - | CT | |
| Cardiovascular Disease (Cardiology) | FL | |
| P S Y C H I A T R Y | PA | |
| Emergency Medicine | WA |
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