DR. MICHAEL ANDREW GISTRAK (MD) – Specialist, NPI 1396793972
Specialist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
355 PATHOLOGY in NJ
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Provider Addresses for DR. MICHAEL ANDREW GISTRAK (MD)
Robert Wood Johnson University Hospital At Rahway, 865, Stone Street, Rahway, Union County, New Jersey, 07065, United States
RAHWAY, NJ 070652742
Phone: (732) 499-6139
Fax: (732) 499-6122
Mailing address matches the actual address.
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 $21.
Total Amount is formed as General ($21) + Research ($0) + Ownership ($0) = $21.
Last reported payment date: 2023-05-04 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($21).
Total Amount
$21
General + Research + Ownership
Payments
1
Total payment records
General Amount
$21
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-05-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $21 |
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: 2008-06-28
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 |
|---|---|---|---|---|
| I20080628000069 | 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 |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 4,410 | 1,312 | $0 |
| 88313 | Special stained specimen slides to examine tissue including interpretation and report | 1,578 | 522 | $0 |
| 88312 | Special stained specimen slides to identify organisms including interpretation and report | 1,434 | 505 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 286 | 62 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 77 | 70 | $0 |
Insurance plans in this area (ZIP 07065)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PATHOLOGY | NJ | 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 74 | 61 |
| PATHOLOGY | NJ | 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 16 | 14 |
| PATHOLOGY | NJ | 88312 | Special stained specimen slides to identify organisms including interpretation and report | 84 | 54 |
| PATHOLOGY | NJ | 88342 | Tissue or cell analysis by immunologic technique | 68 | 23 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | NJ | |
| Gastroenterology, Internal Medicine | NJ | |
| P A T H O L O G Y | NJ | |
| P A T H O L O G Y | NJ |
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