DR. GREGORY JAY ZENTNER (M.D.) – Cytopathology Physician, NPI 1407810732
Cytopathology Physician
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
799 PATHOLOGY in MA
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Provider Addresses for DR. GREGORY JAY ZENTNER (M.D.)
Cape Cod Hospital, 27, Park Street, Hyannis, Barnstable, Barnstable County, Massachusetts, 02601, United States
CAPE COD HOSPITAL, DEPT. OF PATHOLOGY
HYANNIS, MA 026015230
Phone: (508) 862-5267
Fax: (508) 771-7786
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)
No Open Payments data available for this provider.
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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: 2005-09-07
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 |
|---|---|---|---|---|
| I20050907000649 | I | Pathology | MA | 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 |
|---|---|---|---|---|
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 2,356 | 497 | $0 |
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 1,975 | 1,386 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 1,019 | 803 | $0 |
| 84165 | Protein measurement, serum | 940 | 359 | $0 |
| 86334 | Immunologic analysis technique on serum (immunofixation) | 838 | 335 | $0 |
Insurance plans in this area (ZIP 02601)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | MA | |
| - | ME | |
| P A T H O L O G Y | MA | |
| P A T H O L O G Y | DC | |
| P A T H O L O G Y | MA | |
| P A T H O L O G Y | MA |
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