Dr William W Dexter, MD - Medicare Family Medicine in Portland, ME

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Dr William W Dexter, MD is a medicare enrolled "Family Medicine - Sports Medicine" physician in Portland, Maine. His current practice location is 272 Congress St, Portland, Maine. You can reach out to his office (for appointments etc.) via phone at (207) 874-2466.

Dr William W Dexter is licensed to practice in Maine (license number 012670) 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 1396739520.

Contact Information

Dr William W Dexter, MD
272 Congress St,
Portland, ME 04102
(207) 874-2466
(207) 774-4625

Map and Direction




Physician's Profile

Full NameDr William W Dexter
GenderMale
SpecialityFamily Medicine - Sports Medicine
Location272 Congress 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: 1396739520
  • Provider Enumeration Date: 09/02/2005
  • Last Update Date: 03/21/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 2365485687
  • Enrollment ID: I20050608000198

Medical Identifiers

Medical identifiers for Dr William W Dexter such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396739520NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207QS0010XFamily Medicine - Sports Medicine 012670 (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. Dr William W Dexter allows following entities to bill medicare on his behalf.
Entity NameMaine Medical Partners
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467477349
PECOS PAC ID: 9335043967
Enrollment ID: O20031125000026
Entity NameMainehealth
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639194509
PECOS PAC ID: 7517860588
Enrollment ID: O20040206000472
Entity NameMaine Medical Partners
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598780447
PECOS PAC ID: 9335043967
Enrollment ID: O20040220000847
Entity NameMaine Medical Partners
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134144090
PECOS PAC ID: 9335043967
Enrollment ID: O20040331000191
Entity NameMaine Medical Partners
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285738310
PECOS PAC ID: 9335043967
Enrollment ID: O20040525000396

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. Dr William W Dexter 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
Dr William W Dexter, MD
301 Us Route 1, Building C,
Scarborough, ME 04074-9701

Ph: (207) 396-8600		Dr William W Dexter, MD
272 Congress St,
Portland, ME 04102

Ph: (207) 874-2466

Reviews and Comments


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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.