Dr Matthew J Gadbaw, MD - Medicare Hospitalist in Honolulu, HI

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Dr Matthew J Gadbaw, MD is a medicare enrolled "Hospitalist" physician in Honolulu, Hawaii. He went to University Of Washington School Of Medicine and graduated in 2000 and has 25 years of diverse experience with area of expertise as Hospitalist. He is a member of the group practice Providence Health And Services Oregon and his current practice location is 888 S King St, Honolulu, Hawaii. You can reach out to his office (for appointments etc.) via phone at (808) 522-4000.

Dr Matthew J Gadbaw is licensed to practice in Hawaii (license number MD-25651) 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 1558392969.

Contact Information

Dr Matthew J Gadbaw, MD
888 S King St,
Honolulu, HI 96813-3097
(808) 522-4000
(808) 522-4769

Map and Direction




Physician's Profile

Full NameDr Matthew J Gadbaw
GenderMale
SpecialityHospitalist
Experience25 Years
Location888 S King St, Honolulu, Hawaii
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:
  • Dr Matthew J Gadbaw attended and graduated from University Of Washington School Of Medicine in 2000
  NPI Data:
  • NPI Number: 1558392969
  • Provider Enumeration Date: 07/05/2006
  • Last Update Date: 09/09/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8224001599
  • Enrollment ID: I20040816000337

Medical Identifiers

Medical identifiers for Dr Matthew J Gadbaw such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1558392969NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist MD-25651 (Hawaii)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Health And Services Oregon06481836081338

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 Matthew J Gadbaw allows following entities to bill medicare on his behalf.
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023488343
PECOS PAC ID: 0648183608
Enrollment ID: O20031106000652
Entity NameProvidence Health & Services - Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093976243
PECOS PAC ID: 3476450560
Enrollment ID: O20031217000186
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578500492
PECOS PAC ID: 1557260106
Enrollment ID: O20040102000768
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053862714
PECOS PAC ID: 7315856010
Enrollment ID: O20040304001330
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568547503
PECOS PAC ID: 5294623245
Enrollment ID: O20040310000315

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 Matthew J Gadbaw 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 Matthew J Gadbaw, MD
888 S King St,
Honolulu, HI 96813-3097

Ph: (808) 522-4000		Dr Matthew J Gadbaw, MD
888 S King St,
Honolulu, HI 96813-3097

Ph: (808) 522-4000

Reviews and Comments


Hospitalist Doctors in Honolulu, HI

Aileen N. Tamura,
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Medicare: Accepting Medicare Assignments
Practice Location: 3288 Moanalua Rd, Honolulu, HI 96819
Phone: 808-432-0000    
Imtiaz Hussain Bangash, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 1301 Punchbowl St, Honolulu, HI 96813
Phone: 808-691-1000    
Dr. Alan I-chih Wu, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 1441 Kapiolani Blvd Ste 416, Honolulu, HI 96814
Phone: 808-691-9025    Fax: 808-691-9032
Dr. Robert H. Salyer, D.O.
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 3288 Moanalua Rd, Honolulu, HI 96819
Phone: 808-432-0000    
Florence Kan,
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 550 S Beretania St Ste 300, Honolulu, HI 96813
Phone: 808-686-4620    
Dr. Gregory Chenhu Hsu, M.D
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 1301 Punchbowl St, Honolulu, HI 96813
Phone: 808-691-1000    
Karen Jackson Parsell Miller, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 1319 Punahou St, Honolulu, HI 96826
Phone: 808-983-6000    Fax: 808-983-6109

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.