Dr John Michael Grubbs, MD - Medicare Family Practice in Longview, WA

Dr John Michael Grubbs, MD is a medicare enrolled "Family Medicine" physician in Longview, Washington. He went to University Of Texas Medical School At Houston and graduated in 1991 and has 33 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Kaiser Foundation Health Plan Of The Northwest and his current practice location is 1230 7th Ave, Mod S, Longview, Washington. You can reach out to his office (for appointments etc.) via phone at (360) 636-2400.

Dr John Michael Grubbs is licensed to practice in Washington (license number 37082) 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 1174636740.

Contact Information

Dr John Michael Grubbs, MD
1230 7th Ave, Mod S,
Longview, WA 98632-3166
(360) 636-2400
(360) 636-6285

Map and Direction




Physician's Profile

Full NameDr John Michael Grubbs
GenderMale
SpecialityFamily Practice
Experience33 Years
Location1230 7th Ave, Longview, 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:
  • Dr John Michael Grubbs attended and graduated from University Of Texas Medical School At Houston in 1991
  NPI Data:
  • NPI Number: 1174636740
  • Provider Enumeration Date: 08/16/2006
  • Last Update Date: 02/04/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 8325139728
  • Enrollment ID: I20070814000113

Medical Identifiers

Medical identifiers for Dr John Michael Grubbs such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174636740NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 37082 (Washington)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Peacehealth St John Medical CenterLongview, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
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. Dr John Michael Grubbs 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: O20040220000099

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 John Michael Grubbs 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 John Michael Grubbs, MD
1230 7th Ave, Mod S,
Longview, WA 98632-3166

Ph: (360) 636-2400
Dr John Michael Grubbs, MD
1230 7th Ave, Mod S,
Longview, WA 98632-3166

Ph: (360) 636-2400

Reviews and Comments


Family Medicine Doctors in Longview, WA

Mr. Albert Hung-pei Luh, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1230 7th Ave, Longview, WA 98632
Phone: 360-575-4801    
Michael Adam Krall, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1230 7th Ave, Longview, WA 98632
Phone: 360-575-4801    
Dr. Joseph Leslie Davis, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2807 36th Ave, Longview, WA 98632
Phone: 360-425-8365    
Muhammad Riaz, M.D
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1615 Delaware St, Longview, WA 98632
Phone: 360-414-7800    Fax: 360-414-7808
Dr. Morgan Daneel Evans, D.O
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1718 E Kessler Blvd, Longview, WA 98632
Phone: 360-747-5800    Fax: 360-575-3846
Mu-hsiang Joy Wang, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1718 E Kessler Blvd, Longview, WA 98632
Phone: 360-747-5800    Fax: 360-575-3846
Peter W Dicristina, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1230 7th Ave, Longview, WA 98632
Phone: 360-636-2400    

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.