Mrs Gwen Johanna Grewe, MD - Medicare Internal Medicine in Tualatin, OR

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Mrs Gwen Johanna Grewe, MD is a medicare enrolled "Internal Medicine" physician in Tualatin, Oregon. She graduated from medical school in 1997 and has 27 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Legacy Meridian Park Hospital and her current practice location is 19875 Sw 65th Ave, Tualatin, Oregon. You can reach out to her office (for appointments etc.) via phone at (503) 692-7785.

Mrs Gwen Johanna Grewe is licensed to practice in Oregon (license number MD21373) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1326014234.

Contact Information

Mrs Gwen Johanna Grewe, MD
19875 Sw 65th Ave,
Tualatin, OR 97062-8353
(503) 692-7785
(503) 885-1663

Map and Direction




Physician's Profile

Full NameMrs Gwen Johanna Grewe
GenderFemale
SpecialityInternal Medicine
Experience27 Years
Location19875 Sw 65th Ave, Tualatin, Oregon
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mrs Gwen Johanna Grewe graduated from medical school in 1997
  NPI Data:
  • NPI Number: 1326014234
  • Provider Enumeration Date: 02/28/2006
  • Last Update Date: 02/18/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 2961696240
  • Enrollment ID: I20101101000210

Medical Identifiers

Medical identifiers for Mrs Gwen Johanna Grewe such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326014234NPI-NPPES
288449MedicaidOR

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MD21373 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Amedisys Home Health CarePortland, ORHome health agency
Legacy Meridian Park Medical CenterTualatin, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Legacy Meridian Park Hospital509260984290

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. Mrs Gwen Johanna Grewe allows following entities to bill medicare on her behalf.
Entity NameLegacy Clinics Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902827272
PECOS PAC ID: 0244144004
Enrollment ID: O20031117000089
Entity NameLegacy Good Samaritan Hospital And Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780608216
PECOS PAC ID: 0547179939
Enrollment ID: O20031125000416
Entity NameLegacy Emanuel Hospital & Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831112358
PECOS PAC ID: 4587573639
Enrollment ID: O20040127001204
Entity NameSilverton Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669424354
PECOS PAC ID: 8921901877
Enrollment ID: O20040129000172
Entity NameLegacy Meridian Park Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184647620
PECOS PAC ID: 5092609842
Enrollment ID: O20040211001181
Entity NameLegacy Mount Hood Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386919132
PECOS PAC ID: 3173515996
Enrollment ID: O20040401000550

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. Mrs Gwen Johanna Grewe 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
Mrs Gwen Johanna Grewe, MD
2007 Sw Dewitt St,
Portland, OR 97239-2031

Ph: (503) 977-2070		Mrs Gwen Johanna Grewe, MD
19875 Sw 65th Ave,
Tualatin, OR 97062-8353

Ph: (503) 692-7785

Reviews and Comments


Internal Medicine Doctors in Tualatin, OR

Jaymee E Delaney, MD
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Jessica Kazue Haraga, MD
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Dr. Benito G Pataroque, M.D.
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Dr. Tammi Kaye Boston, MD
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Dr. William H Treuhaft, M.D.
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Phone: 503-413-3650    Fax: 503-413-3644
Dean Kyle Peterson, MD
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Practice Location: 19300 Sw 65th Ave, Tualatin, OR 97062
Phone: 503-413-8407    Fax: 503-413-6951
Dr. Mark Leo Mckinstry, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 19875 Sw 65th Ave, Tualatin, OR 97062
Phone: 503-692-7785    Fax: 503-885-1663

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.