MARK S SHAHIN (MD) – Gynecologic Oncology Physician, NPI 1568440451
Gynecologic Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
108 GYNECOLOGICAL ONCOLOGY in PA
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Provider Addresses for MARK S SHAHIN (MD)
Willow Road, West Bloomfield Township, Commerce Township, Oakland County, Michigan, 48382, United States
WILLOW GROVE, PA 190901104
Phone: (215) 481-4000
Fax: (215) 576-0740
Type: Mailing
3941 Commerce Ave
Willow Grove, PA 190901104
Phone: (215) 481-4000
Fax: (215) 576-0740
Type: Location
500 UNIVERSITY DR
HERSHEY, PA 170332360
Phone: (717) 531-3503
Fax: (717) 531-0117
Type: Location
500 UNIVERSITY DR MC CA410
HERSHEY, PA 170332360
Phone: (717) 531-5208
Fax: (717) 531-0119
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 311 Open Payments records for all available years, with a total value of $267,353.
Total Amount is formed as General ($267,353) + Research ($0) + Ownership ($0) = $267,353.
Last reported payment date: 2024-12-30 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($144,654).
Total Amount
$267,353
General + Research + Ownership
Payments
311
Total payment records
General Amount
$267,353
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $144,654 |
| Merck Sharp & Dohme LLC | $29,402 |
| AstraZeneca Pharmaceuticals LP | $26,996 |
| ImmunoGen, Inc. | $19,633 |
| ABBVIE INC. | $17,212 |
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: 2006-05-24
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 |
|---|---|---|---|---|
| I20060524000030 | I | Gynecological Oncology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 387 | 255 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 113 | 48 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 88 | 58 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 32 | 24 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 22 | 22 | $0 |
Insurance plans in this area (ZIP 19090)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | PA | |
| Vascular Surgery | MD | |
| O P H T H A L M O L O G Y | PA | |
| - | PA | |
| Nurse Practitioner | PA | |
| - | FL | |
| - | PA | |
| - | PA | |
| Emergency Medicine | PA | |
| Critical Care (Intensivists) | PA |
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