GREGORY M RIEDLINGER (MD, PHD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1639516891
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
801 PATHOLOGY in MA
Provider Addresses for GREGORY M RIEDLINGER (MD, PHD)
MASSACHUSETTS GENERAL HOSPITAL
55 FRUIT ST.
BOSTON, MA 02114
Phone: (617) 726-2967
Type: Mailing
195 LITTLE ALBANY ST RM 3553
NEW BRUNSWICK, NJ 089011914
Phone: (732) 235-8978
Type: Mailing
RUTGERS CANCER INSTITUTE OF NEW JERSEY
195 LITTLE ALBANY PARKWAY, ROOM 3553
NEW BRUNSWICK, NJ 089030890
Phone: (732) 235-8978
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 $5,756.
Total Amount is formed as General ($5,756) + Research ($0) + Ownership ($0) = $5,756.
Last reported payment date: 2024-10-23 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($2,420).
Total Amount
$5,756
General + Research + Ownership
Payments
3
Total payment records
General Amount
$5,756
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $2,420 |
| PFIZER INC. | $1,800 |
| Bayer Healthcare Pharmaceuticals Inc. | $1,536 |
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: 2015-10-27
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20151027003040 | I | Pathology | 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 |
|---|---|---|---|---|
| G0452 | Molecular pathology procedure; physician interpretation and report | 457 | 192 | $0 |
| 88291 | Interpretation and report of genetic testing | 49 | 20 | $0 |
Insurance plans in this area (ZIP 02114)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | NJ | |
| Certified Registered Nurse Anesthetist (Crna) | NJ | |
| A N E S T H E S I O L O G Y | NJ | |
| P A T H O L O G Y | NJ | |
| P A T H O L O G Y | NY | |
| - | NY | |
| Certified Registered Nurse Anesthetist (Crna) | PA | |
| Certified Registered Nurse Anesthetist (Crna) | NJ | |
| A N E S T H E S I O L O G Y | NJ | |
| Certified Registered Nurse Anesthetist (Crna) | NJ |
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