Dr Diana Antoniskis, MD - Medicare Internal Medicine in Portland, OR

Dr Diana Antoniskis, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Portland, Oregon. Her current practice location is 3550 N Interstate Ave, Portland, Oregon. You can reach out to her office (for appointments etc.) via phone at (503) 249-5536.

Dr Diana Antoniskis is licensed to practice in Oregon (license number MD17138) 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 1922116953.

Contact Information

Dr Diana Antoniskis, MD
3550 N Interstate Ave,
Portland, OR 97227-1196
(503) 249-5536
(503) 249-3447

Map and Direction




Physician's Profile

Full NameDr Diana Antoniskis
GenderFemale
SpecialityInternal Medicine - Infectious Disease
Location3550 N Interstate Ave, Portland, Oregon
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1922116953
  • Provider Enumeration Date: 08/29/2006
  • Last Update Date: 02/04/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7911940325
  • Enrollment ID: I20050607000572

Medical Identifiers

Medical identifiers for Dr Diana Antoniskis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922116953NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease MD00035117 (Washington)Secondary
207RI0200XInternal Medicine - Infectious Disease MD17138 (Oregon)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 Diana Antoniskis allows following entities to bill medicare on her behalf.
Entity NameKaiser Foundation Health Plan Of The Northwest
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184786527
PECOS PAC ID: 5799688230
Enrollment ID: O20040130000799
Entity NameOutside In
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477005619
PECOS PAC ID: 9638256662
Enrollment ID: O20170919002919

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 Diana Antoniskis 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 Diana Antoniskis, MD
18955 Olson Ave,
Lake Oswego, OR 97034-7420

Ph: (503) 638-5125
Dr Diana Antoniskis, MD
3550 N Interstate Ave,
Portland, OR 97227-1196

Ph: (503) 249-5536

Reviews and Comments


Internal Medicine Doctors in Portland, OR

Salona Shrestha, MD
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Practice Location: 4805 Ne Glisan St, Portland, OR 97213
Phone: 503-215-2392    
Dr. Emmanuel Trungtoan Tavan, MD
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Practice Location: 2800 N Vancouver Ave, Suite 230, Portland, OR 97227
Phone: 503-413-2901    
Ginevra Lois Liptan, M.D.
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Practice Location: 6400 Sw Canyon Ct, Ste 100, Portland, OR 97221
Phone: 503-477-9616    Fax: 503-477-9808
Donald Richard Sullivan, MD
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Practice Location: 3181 Sw Sam Jackson Park Rd, Uhn67, Portland, OR 97239
Phone: 503-494-6949    
Dr. Victor Nguyen Pham, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 9205 Sw Barnes Rd, Portland, OR 97225
Phone: 503-216-2906    
Richa Uppal, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 800 Sw 13th Ave, Portland, OR 97205
Phone: 503-221-0161    Fax: 503-274-1697
Reem Hasan, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 3181 Sw Sam Jackson Park Rd, Ppv 350, Portland, OR 97239
Phone: 503-494-8562    

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.