STEVEN SIEBER (M.D.) – Anatomic Pathology & Clinical Pathology Physician, NPI 1942224043
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
323 PATHOLOGY in CT
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Provider Addresses for STEVEN SIEBER (M.D.)
Danbury Hospital, 24, Hospital Avenue, Germantown, Danbury, Fairfield County, Connecticut, 06810, United States
DANBURY, CT 068106099
Phone: (203) 797-7306
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 2 Open Payments records for all available years, with a total value of $105.
Total Amount is formed as General ($105) + Research ($0) + Ownership ($0) = $105.
Last reported payment date: 2023-10-24 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($105).
Total Amount
$105
General + Research + Ownership
Payments
2
Total payment records
General Amount
$105
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-24
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $105 |
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: 2024-06-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20100702000196 | I | Pathology | CT | TBD |
| I20240621002012 | I | Pathology | NY | 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 | 1,346 | 566 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 168 | 43 | $0 |
| 88112 | Cell examination of specimen, selective cellular enhancement technique | 128 | 116 | $0 |
| 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 85 | 55 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 73 | 58 | $0 |
Insurance plans in this area (ZIP 06810)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | NY | |
| Physician Assistant | NY | |
| Radiation Oncology, Hematology/Oncology | NY | |
| - | NY | |
| P A T H O L O G Y | NY | |
| Hospice/Palliative Care | WI | |
| Hospitalist, Internal Medicine | PA | |
| Hospitalist, Internal Medicine | NY | |
| - | NY | |
| Critical Care (Intensivists), Internal Medicine, Pulmonary Disease | WV |
Reviews
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