Gregory Gerritt Marino, DO - Medicare Internal Medicine in Sheridan, WY

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Gregory Gerritt Marino, DO is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Sheridan, Wyoming. His current practice location is 1401 W 5th St, Sheridan, Wyoming. You can reach out to his office (for appointments etc.) via phone at (307) 674-6022.

Gregory Gerritt Marino is licensed to practice in Wyoming (license number 9050A) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1023054285.

Contact Information

Gregory Gerritt Marino, DO
1401 W 5th St,
Sheridan, WY 82801-2705
(307) 674-6022
(307) 674-5405

Map and Direction




Physician's Profile

Full NameGregory Gerritt Marino
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location1401 W 5th St, Sheridan, Wyoming
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1023054285
  • Provider Enumeration Date: 06/22/2006
  • Last Update Date: 03/17/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 1456401983
  • Enrollment ID: I20090604000140

Medical Identifiers

Medical identifiers for Gregory Gerritt Marino such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023054285NPI-NPPES
MD4548MedicaidAK
134828100MedicaidWY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 4548 (Alaska)Secondary
207RH0003XInternal Medicine - Hematology & Oncology 9050A (Wyoming)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Gregory Gerritt Marino allows following entities to bill medicare on his behalf.
Entity NameAlaska Native Tribal Health Consortium
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437189339
PECOS PAC ID: 6709780265
Enrollment ID: O20031125000772

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Gregory Gerritt Marino is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Gregory Gerritt Marino, DO
1401 W 5th St,
Sheridan, WY 82801-2705

Ph: (307) 674-6022		Gregory Gerritt Marino, DO
1401 W 5th St,
Sheridan, WY 82801-2705

Ph: (307) 674-6022

Reviews and Comments


Internal Medicine Doctors in Sheridan, WY

Erin Marie Henderson, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 61 S Gould St, Sheridan, WY 82801
Phone: 307-675-2690    Fax: 307-675-2691
Abigail Turnbough,
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 1333 W 5th St Ste 203, Sheridan, WY 82801
Phone: 307-675-4474    Fax: 307-675-4475
Dr. Allison Dawson, MD
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 1333 W 5th St Ste 112, Sheridan, WY 82801
Phone: 307-675-2650    Fax: 307-675-2651
Dr. Hannah Marie Hall, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1333 W 5th St, Ste 112, Sheridan, WY 82801
Phone: 307-675-2650    Fax: 307-675-2651
Dr. Stephen Scott Tenney, MD
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 1898 Fort Rd, Sheridan, WY 82801
Phone: 307-672-3473    Fax: 307-672-1900
Dr. Bill M Williams, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 1456 W 5th St, Sheridan, WY 82801
Phone: 307-672-5881    Fax: 307-672-1766

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.