Dr Daniel M Merson, DO - Medicare Internal Medicine in Portland, ME

Dr Daniel M Merson, DO is a medicare enrolled "Internal Medicine" physician in Portland, Maine. He went to Massachusetts College Of Osteopathy and graduated in 1987 and has 37 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Mercy Hospital and his current practice location is 1250 Forest Ave, Portland, Maine. You can reach out to his office (for appointments etc.) via phone at (207) 878-5042.

Dr Daniel M Merson is licensed to practice in Maine (license number ME1373) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1982652129.

Contact Information

Dr Daniel M Merson, DO
1250 Forest Ave,
Portland, ME 04103-1884
(207) 878-5042
(207) 878-5043

Map and Direction




Physician's Profile

Full NameDr Daniel M Merson
GenderMale
SpecialityInternal Medicine
Experience37 Years
Location1250 Forest Ave, Portland, Maine
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Daniel M Merson attended and graduated from Massachusetts College Of Osteopathy in 1987
  NPI Data:
  • NPI Number: 1982652129
  • Provider Enumeration Date: 05/04/2006
  • Last Update Date: 10/16/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 3173568540
  • Enrollment ID: I20050627000186

Medical Identifiers

Medical identifiers for Dr Daniel M Merson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1982652129NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine ME1373 (Maine)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northern Light Mercy HospitalPortland, MEHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Hospital6103737812229

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 Daniel M Merson allows following entities to bill medicare on his behalf.
Entity NameMercy Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629078712
PECOS PAC ID: 6103737812
Enrollment ID: O20040217000943

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 Daniel M Merson 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 Daniel M Merson, DO
1250 Forest Ave,
Portland, ME 04103

Ph: (207) 878-5042
Dr Daniel M Merson, DO
1250 Forest Ave,
Portland, ME 04103-1884

Ph: (207) 878-5042

Reviews and Comments


Internal Medicine Doctors in Portland, ME

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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.