Dr Patricia A Lerwick, MD - Medicare Internal Medicine in So. Portland, ME

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Dr Patricia A Lerwick, MD is a medicare enrolled "Internal Medicine - Critical Care Medicine" physician in So. Portland, Maine. Her current practice location is 100 Foden Road, West Building Suite 103, So. Portland, Maine. You can reach out to her office (for appointments etc.) via phone at (207) 828-1122.

Dr Patricia A Lerwick is licensed to practice in Maine (license number 012163) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1912000159.

Contact Information

Dr Patricia A Lerwick, MD
100 Foden Road, West Building Suite 103,
So. Portland, ME 04106
(207) 828-1122
(207) 828-0188

Map and Direction




Physician's Profile

Full NameDr Patricia A Lerwick
GenderFemale
SpecialityInternal Medicine - Critical Care Medicine
Location100 Foden Road, So. Portland, Maine
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1912000159
  • Provider Enumeration Date: 09/06/2006
  • Last Update Date: 12/15/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 2062457336
  • Enrollment ID: I20050627001160

Medical Identifiers

Medical identifiers for Dr Patricia A Lerwick such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912000159NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease 012163 (Maine)Secondary
207RC0200XInternal Medicine - Critical Care Medicine 012163 (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 Patricia A Lerwick allows following entities to bill medicare on her behalf.
Entity NameMercy Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629078712
PECOS PAC ID: 6103737812
Enrollment ID: O20040217000943
Entity NameChest Medicine Associates Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437255247
PECOS PAC ID: 0547258931
Enrollment ID: O20040504001161

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 Patricia A Lerwick 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 Patricia A Lerwick, MD
100 Foden Rd., West Building Suite 103,
So. Portland, ME 04106

Ph: (207) 828-1122		Dr Patricia A Lerwick, MD
100 Foden Road, West Building Suite 103,
So. Portland, ME 04106

Ph: (207) 828-1122

Reviews and Comments


Internal Medicine Doctors in So. Portland, ME


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.