ROBERT P FEIN (MD) – Medical Oncology Physician, NPI 1801887286
Medical Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
441 HEMATOLOGY/ONCOLOGY in NJ
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Provider Addresses for ROBERT P FEIN (MD)
Brier Hill Court, East Brunswick Township, Middlesex County, New Jersey, 08816, United States
EAST BRUNSWICK, NJ 08816
Phone: (732) 390-7750
Fax: (732) 390-7725
Type: Mailing
75, Veronica Avenue, Clyde, Franklin Township, Somerset County, New Jersey, 08873, United States
SUITE 201
SOMERSET, NJ 088735002
Phone: (732) 246-4882
Fax: (732) 828-2103
Type: Location
1 Washington Blvd Ste 9
Robbinsville, NJ 086913162
Phone: (732) 314-0540
Fax: (609) 934-4140
Type: Location
9 Centre Dr Ste 100
Monroe Township, NJ 088315153
Phone: (609) 395-5577
Fax: (609) 395-7955
Type: Location
629 Cranbury Rd Fl 2
East Brunswick, NJ 088164096
Phone: (732) 390-7750
Fax: (732) 390-7725
Type: Location
629 CRANBURY RD FL 2
EAST BRUNSWICK, NJ 088164096
Phone: (732) 390-7750
Fax: (732) 390-7725
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 99 Open Payments records for all available years, with a total value of $2,157.
Total Amount is formed as General ($2,157) + Research ($0) + Ownership ($0) = $2,157.
Last reported payment date: 2024-12-12 • Largest payer in this snapshot: Bayer Healthcare Pharmaceuticals Inc. ($151).
Total Amount
$2,157
General + Research + Ownership
Payments
99
Total payment records
General Amount
$2,157
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
1
Ownership records
Last Payment Date
2024-12-12
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2010-10-04
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 |
|---|---|---|---|---|
| I20101004000443 | I | Hematology/Oncology | NJ | 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 |
|---|---|---|---|---|
| J1439 | Injection, ferric carboxymaltose, 1 mg | 53,250 | 59 | $0 |
| J9271 | Injection, pembrolizumab, 1 mg | 12,200 | 17 | $0 |
| J1756 | Injection, iron sucrose, 1 mg | 10,800 | 24 | $0 |
| J0881 | Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 8,640 | 11 | $0 |
| J0897 | Injection, denosumab, 1 mg | 6,720 | 31 | $0 |
Insurance plans in this area (ZIP 08816)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hematology, Medical Oncology | NJ | |
| R H E U M A T O L O G Y | NJ | |
| U R O L O G Y | NJ | |
| H E M A T O L O G Y/ O N C O L O G Y | NJ | |
| Radiation Oncology | NJ | |
| H E M A T O L O G Y/ O N C O L O G Y | NJ | |
| H E M A T O L O G Y/ O N C O L O G Y | NJ | |
| Hematology/Oncology, Internal Medicine | NJ | |
| H E M A T O L O G Y/ O N C O L O G Y | NJ | |
| General Surgery | NJ |
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