Michael Joseph May, MD - Medicare Ophthalmology in Portland, OR

Michael Joseph May, MD is a medicare enrolled "Ophthalmology" physician in Portland, Oregon. He went to Ohio State University College Of Medicine and graduated in 1994 and has 30 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Kaiser Foundation Health Plan Of The Northwest, Kaiser Foundation Health Plan Of The Northwest and his current practice location is 3600 N Interstate Ave, Portland, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 331-6330.

Michael Joseph May is licensed to practice in Oregon (license number MD25495) 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 1649380874.

Contact Information

Michael Joseph May, MD
3600 N Interstate Ave,
Portland, OR 97227-1106
(503) 331-6330
Not Available

Map and Direction




Physician's Profile

Full NameMichael Joseph May
GenderMale
SpecialityOphthalmology
Experience30 Years
Location3600 N Interstate Ave, Portland, Oregon
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:
  • Michael Joseph May attended and graduated from Ohio State University College Of Medicine in 1994
  NPI Data:
  • NPI Number: 1649380874
  • Provider Enumeration Date: 08/30/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 0244203156
  • Enrollment ID: I20051130000962

Medical Identifiers

Medical identifiers for Michael Joseph May such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649380874NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology MD25495 (Oregon)Primary
207W00000XOphthalmology MD00044396 (Washington)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kaiser Foundation Health Plan Of The Northwest57996882301484
Kaiser Foundation Health Plan Of The Northwest57996882301484

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. Michael Joseph May allows following entities to bill medicare on his 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

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. Michael Joseph May 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
Michael Joseph May, MD
3600 N Interstate Ave,
Portland, OR 97227-1106

Ph: () -
Michael Joseph May, MD
3600 N Interstate Ave,
Portland, OR 97227-1106

Ph: (503) 331-6330

Reviews and Comments


Ophthalmology Doctors in Portland, OR

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Allison Rebecca Loh, M.D.
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Practice Location: 3375 Sw Terwilliger Blvd, Portland, OR 97239
Phone: 503-494-3000    Fax: 503-494-4286
John Carl Morrison, MD
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Phone: 503-494-3000    Fax: 503-418-0843
Adam Marcus Hanif,
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Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239
Phone: 503-494-3000    Fax: 503-494-4286
Mr. John Jah-hyun Koo, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 3600 N. Interstate Avenue, Department Of Opthalmology, Portland, OR 97227
Phone: 503-331-6330    Fax: 503-571-5877

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.