Corey Robert O'brien, MD - Medicare Hospitalist in Kirkland, WA

Corey Robert O'brien, MD is a medicare enrolled "Hospitalist" physician in Kirkland, Washington. He went to Georgetown University School Of Medicine and graduated in 2016 and has 8 years of diverse experience with area of expertise as Hospitalist. He is a member of the group practice King County Public Hospital District No 2 and his current practice location is 12040 Ne 128th St, Kirkland, Washington. You can reach out to his office (for appointments etc.) via phone at (425) 899-1854.

Corey Robert O'brien is licensed to practice in Washington (license number MD61134393) 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 1871940312.

Contact Information

Corey Robert O'brien, MD
12040 Ne 128th St,
Kirkland, WA 98034-3013
(425) 899-1854
Not Available

Map and Direction




Physician's Profile

Full NameCorey Robert O'brien
GenderMale
SpecialityHospitalist
Experience8 Years
Location12040 Ne 128th St, Kirkland, Washington
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:
  • Corey Robert O'brien attended and graduated from Georgetown University School Of Medicine in 2016
  NPI Data:
  • NPI Number: 1871940312
  • Provider Enumeration Date: 05/14/2016
  • Last Update Date: 03/21/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9436439346
  • Enrollment ID: I20210519002971

Medical Identifiers

Medical identifiers for Corey Robert O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871940312NPI-NPPES
1871940312MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MD61134393 (Washington)Secondary
208M00000XHospitalist MD61134393 (Washington)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Evergreenhealth Medical CenterKirkland, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
King County Public Hospital District No 27618880097497

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. Corey Robert O'brien allows following entities to bill medicare on his behalf.
Entity NameKing County Public Hospital District No 2
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801986070
PECOS PAC ID: 7618880097
Enrollment ID: O20031111000557

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. Corey Robert O'brien 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
Corey Robert O'brien, MD
12040 Ne 128th St,
Kirkland, WA 98034-3013

Ph: (516) 661-4519
Corey Robert O'brien, MD
12040 Ne 128th St,
Kirkland, WA 98034-3013

Ph: (425) 899-1854

Reviews and Comments


Hospitalist Doctors in Kirkland, WA

Dr. Tristan Richard Osborn, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 12040 Ne 128th St # Ms 105, Kirkland, WA 98034
Phone: 425-899-2560    Fax: 425-899-2079
Dr. Jaclyn Mcloughlin, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 12040 Ne 128th St, Kirkland, WA 98034
Phone: 808-780-5038    
Peter Schoonmaker, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 12040 Ne 128th Street, Ms105, Kirkland, WA 98034
Phone: 425-899-2560    
Dr. Nancy A Marshall, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 12040 Ne 128th St, Ms #105, Kirkland, WA 98034
Phone: 425-899-2560    Fax: 425-899-2079
Mary English Lacy, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: Evergreen Hospital, 12040 Ne 128th St, Kirkland, WA 98034
Phone: 859-583-6273    
Dr. Linhchi Pham, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 12040 Ne 128th St, Kirkland, WA 98034
Phone: 425-899-2563    Fax: 425-899-2079
Miss Margaret Shin Kim, M.D.
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 11800 Ne 128th St Ste 300, Kirkland, WA 98034
Phone: 425-814-5100    

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).

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