John Michael Holland, MD - Medicare Radiation Oncology in Portland, OR

John Michael Holland, MD is a medicare enrolled "Radiology - Radiation Oncology" physician in Portland, Oregon. He went to Washington University School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Radiation Oncology. He is a member of the group practice Portland Adventist Medical Center and his current practice location is 3181 Sw Sam Jackson Park Rd, Kpv4, Portland, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 494-8756.

John Michael Holland is licensed to practice in Oregon (license number MD19074) 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 1104834662.

Contact Information

John Michael Holland, MD
3181 Sw Sam Jackson Park Rd, Kpv4,
Portland, OR 97239-3011
(503) 494-8756
Not Available

Map and Direction




Physician's Profile

Full NameJohn Michael Holland
GenderMale
SpecialityRadiation Oncology
Experience35 Years
Location3181 Sw Sam Jackson Park Rd, 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:
  • John Michael Holland attended and graduated from Washington University School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1104834662
  • Provider Enumeration Date: 08/03/2006
  • Last Update Date: 09/30/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 5092873885
  • Enrollment ID: I20081023000144

Medical Identifiers

Medical identifiers for John Michael Holland such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104834662NPI-NPPES
286814MedicaidOR

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0001XRadiology - Radiation Oncology MD19074 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health PortlandPortland, ORHospital
Columbia Memorial HospitalAstoria, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Portland Adventist Medical Center3274908819221

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. John Michael Holland allows following entities to bill medicare on his behalf.
Entity NameNorth Bend Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407812365
PECOS PAC ID: 5597677716
Enrollment ID: O20031105000138
Entity NamePortland Adventist Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215910302
PECOS PAC ID: 7012827876
Enrollment ID: O20040226000131
Entity NameBay Area Hospital District
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225016561
PECOS PAC ID: 2163331000
Enrollment ID: O20040310000301
Entity NamePortland Adventist Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750091021
PECOS PAC ID: 3274908819
Enrollment ID: O20230412001327

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. John Michael Holland 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
John Michael Holland, MD
3625 Ne Multnomah St,
Portland, OR 97232-1914

Ph: () -
John Michael Holland, MD
3181 Sw Sam Jackson Park Rd, Kpv4,
Portland, OR 97239-3011

Ph: (503) 494-8756

Reviews and Comments


Radiology Doctors in Portland, OR

Gregory Hall, MD
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Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239
Phone: 503-418-0990    Fax: 503-494-4982
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Erik W Foss, MD
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Steven Lloyd Primack, MD
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Dr. James S Putnam, MD
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Phone: 503-216-4830    Fax: 503-216-4850
D. Bradley Koslin, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239
Phone: 503-418-0990    

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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.

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