David R Greatorex, MD - Medicare Radiology in Portland, ME

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David R Greatorex, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Portland, Maine. His current practice location is 144 State St, Portland, Maine. You can reach out to his office (for appointments etc.) via phone at (207) 879-3000.

David R Greatorex is licensed to practice in Maine (license number 015632) 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 1164409264.

Contact Information

David R Greatorex, MD
144 State St,
Portland, ME 04101-3776
(207) 879-3000
Not Available

Map and Direction




Physician's Profile

Full NameDavid R Greatorex
GenderMale
SpecialityRadiology - Diagnostic Radiology
Location144 State St, Portland, Maine
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1164409264
  • Provider Enumeration Date: 12/29/2005
  • Last Update Date: 07/16/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 0042289985
  • Enrollment ID: I20120405000704

Medical Identifiers

Medical identifiers for David R Greatorex such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1164409264NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology 015632 (Maine)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. David R Greatorex allows following entities to bill medicare on his behalf.
Entity NameSeacoast Radiology, Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427020395
PECOS PAC ID: 3274500541
Enrollment ID: O20040915000779
Entity NameMass General Brigham Community Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548638265
PECOS PAC ID: 1759273436
Enrollment ID: O20221107002262

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. David R Greatorex 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
David R Greatorex, MD
Po Box 1849,
Lewiston, ME 04241-1849

Ph: (207) 784-2554		David R Greatorex, MD
144 State St,
Portland, ME 04101-3776

Ph: (207) 879-3000

Reviews and Comments


Radiology Doctors in Portland, ME

Michael O'malley Quinn, M.D.
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Jerald Christopher Kuhn, M.D.
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Whitney H Beeler, M.D.
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Phone: 207-662-4735    Fax: 207-662-6388
David Russell Langdon, M.D.
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Practice Location: 144 State St, Portland, ME 04101
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Ethan M Dobrow, MD
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Practice Location: 22 Bramhall St, Portland, ME 04102
Phone: 207-662-2526    

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.