GREGORY GERRITT MARINO (DO) – Hematology & Oncology Physician, NPI 1023054285
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
10 MEDICAL ONCOLOGY in AK
Provider Addresses for GREGORY GERRITT MARINO (DO)
4315 Diplomacy Dr
ATTN: SHERRY REEDY
Anchorage, AK 995085926
Phone: (907) 729-3971
Fax: (907) 729-1542
Type: Location
Sheridan Memorial Hospital, 1401, West 5th Street, Sheridan, Sheridan County, Wyoming, 82801, United States
SHERIDAN, WY 828012705
Phone: (307) 674-6022
Fax: (307) 674-5405
Type: Mailing
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.
This can happen when there are no reportable CMS Open Payments records.
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: 2021-08-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20090604000140 | I | Medical Oncology | TX | TBD |
| I20121213000490 | I | Medical Oncology | WY | TBD |
| I20210812003077 | I | Medical Oncology | AK | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 101 | 69 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 57 | 42 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 28 | 23 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 27 | 25 | $0 |
Insurance plans in this area (ZIP 99508)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Mental Health Counselor | WY | |
| P S Y C H I A T R Y | WY | |
| Radiation Oncology | CO | |
| Nurse Practitioner | ID | |
| N E U R O L O G Y | CO | |
| - | WY | |
| Clinical Social Worker | WY | |
| - | IL | |
| Nurse Practitioner | NE | |
| - | WY |
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