Cassandra Michelle Niemi, MD - Medicare Gynecological Oncology in Portland, OR

Cassandra Michelle Niemi, MD is a medicare enrolled "Obstetrics & Gynecology - Gynecologic Oncology" physician in Portland, Oregon. She graduated from medical school in 2011 and has 13 years of diverse experience with area of expertise as Gynecological Oncology. She is a member of the group practice Legacy Salmon Creek Hospital, Providence Health And Services Oregon, Providence Health And Services Oregon and her current practice location is 4805 Ne Glisan St Ste 11n, Portland, Oregon. You can reach out to her office (for appointments etc.) via phone at (503) 215-2075.

Cassandra Michelle Niemi is licensed to practice in Oregon (license number MD186977) 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 1861781767.

Contact Information

Cassandra Michelle Niemi, MD
4805 Ne Glisan St Ste 11n,
Portland, OR 97213-2933
(503) 215-2075
Not Available

Map and Direction




Physician's Profile

Full NameCassandra Michelle Niemi
GenderFemale
SpecialityGynecological Oncology
Experience13 Years
Location4805 Ne Glisan St Ste 11n, Portland, 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:
  • Cassandra Michelle Niemi graduated from medical school in 2011
  NPI Data:
  • NPI Number: 1861781767
  • Provider Enumeration Date: 03/31/2011
  • Last Update Date: 03/22/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3476708470
  • Enrollment ID: I20180807003894

Medical Identifiers

Medical identifiers for Cassandra Michelle Niemi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861781767NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VX0201XObstetrics & Gynecology - Gynecologic Oncology MD186977 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Providence Portland Medical CenterPortland, ORHospital
Providence St Vincent Medical CenterPortland, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Legacy Salmon Creek Hospital0446295711236
Providence Health And Services Oregon06481836081344
Providence Health And Services Oregon5395656284115

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. Cassandra Michelle Niemi allows following entities to bill medicare on her behalf.
Entity NameNorthwest Cancer Specialists Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407828114
PECOS PAC ID: 8426943838
Enrollment ID: O20040217000848
Entity NameLegacy Salmon Creek Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356357784
PECOS PAC ID: 0446295711
Enrollment ID: O20051223000194

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. Cassandra Michelle Niemi 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
Cassandra Michelle Niemi, MD
Po Box 3158,
Portland, OR 97208-3158

Ph: (503) 215-6494
Cassandra Michelle Niemi, MD
4805 Ne Glisan St Ste 11n,
Portland, OR 97213-2933

Ph: (503) 215-2075

Reviews and Comments


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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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