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GREGORY GERRITT MARINO DO
NPI 1023054285
Internal Medicine - Hematology & Oncology in Sheridan, WY

Active since June 22, 2006PECOS Enrolled
87.09/100
CMS Quality Rating
1401 W 5TH ST, SHERIDAN, WY 82801(307) 674-6022(307) 674-5405 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 17, 2018, Nov 29, 2017 (2 updates tracked since 2017).

About Gregory Gerritt Marino Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREGORY GERRITT MARINO DO (NPI 1023054285) is an individual hematology & oncology provider in Sheridan, Wyoming, licensed in Wyoming (9050A) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Anchorage.

NPPES Registry Identity

NPI1023054285
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameGREGORY GERRITT MARINOCredential: DO
Location Address1401 W 5TH STSheridan, WY 82801-2705
Mailing Address1401 W 5th StSheridan, WY 82801-2705 · (307) 674-6022 · Fax (307) 674-5405
Phone(307) 674-6022
Fax(307) 674-5405
Sole ProprietorNo
Enumeration DateJune 22, 2006
Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration
✔ NPI 1023054285 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses✔ Licensed in WY · 9050A✔ Licensed in AK · 4548
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
1401 W 5TH ST, Sheridan, WY 82801
Open in Google Maps ↗

Secondary Practice Location 1

Location 14315 Diplomacy Dr, ATTN: SHERRY REEDYAnchorage, AK 99508-5926 · Phone (907) 729-3971 · Fax (907) 729-1542

Other Identifiers 2

Medicaid134828100WY
MedicaidMD4548AK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Wyoming.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gregory Gerritt Marino Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Gregory Marino reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Medical Center
34 mi
Clinic/Center
497 WEST LOTT
Buffalo, WY 82834
  • Reassigned Medicare billing, Wyoming enrollment
  • 27 clinicians in this Medicare group
NPI 1285612317 (307) 684-5521
West Park Hospital District
67 mi
Emergency Medicine
PO BOX 143
Basin, WY 82410
  • Reassigned Medicare billing, Wyoming enrollment
  • 181 clinicians in this Medicare group
NPI 1942921937 (307) 568-3700
Alaska Native Tribal Health Consortium
2,060 mi
General Acute Care Hospital
4315 DIPLOMACY DR
Anchorage, AK 99508
  • Reassigned Medicare billing, Texas enrollment
  • 1,373 clinicians in this Medicare group
NPI 1437189339 (907) 563-2662

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
85 services67 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
52 services36 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
24 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 82801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$170.72 typical visit price
range $56.42 – $170.72
Typical copayment $42.68 (range $14.10 – $42.68)
Most-billed visit code 99205
Established Patient
$99.46 typical visit price
range $18.19 – $139.32
Typical copayment $24.86 (range $4.54 – $34.83)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality77.43
Promoting Interoperability100
Improvement Activities40
Cost62.86

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROCKY MOUNTAIN HOLDINGS, LLC
Ambulance (Air Transport)
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (888) 636-4438
MEMORIAL HOSPITAL OF SHERIDAN COUNTY
Psychiatric Unit
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 672-1000
DR. KRISTEN LEANN SCHAEFER M.D.
Anesthesiology
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 672-1000
DAVIS M SWAN MD
Anesthesiology
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 672-7874
LACI LITTLE N.P.
Nurse Practitioner (Family)
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 675-5850
PATRICIA TOBI M.D.
Anesthesiology
1401 W 5TH ST, SHERIDAN MEMORIAL HOSPITAL
SHERIDAN, WY 82801
Sheridan County (307) 672-1000
MEMORIAL HOSPITAL OF SHERIDAN COUNTY
Hospice Care, Community Based
1401 W 5TH ST
SHERIDAN, WY 82801
Sheridan County (307) 672-1000
DAVID M SCHULTZ MD
Anesthesiology
1401 W 5TH ST, SHERIDAN MEMORIAL HOSPITAL
SHERIDAN, WY 82801
Sheridan County (307) 672-1000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Marino's NPI number?

The NPI number for Gregory Marino is 1023054285. It was assigned to this individual provider in the NPPES registry on June 22, 2006.

Where is Gregory Marino located?

Gregory Marino practices at 1401 W 5th St, Sheridan, WY 82801. The listed phone number is (307) 674-6022.

What is Gregory Marino's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Gregory Marino enrolled in Medicare?

Yes. Gregory Marino is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Gregory Marino's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Marino reassigns Medicare benefits to 3 organizations: Family Medical Center (Buffalo, WY), West Park Hospital District (Basin, WY) and Alaska Native Tribal Health Consortium (Anchorage, AK). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Marino's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Marino accept?

Health plans from Blue Cross Blue Shield of Wyoming list Gregory Marino as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Marino was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.