Mr John A Walker, MD - Medicare Gastroenterology in Bend, OR

Mr John A Walker, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Bend, Oregon. He went to University Of Texas Southwestern Medical School At Dallas and graduated in 1973 and has 51 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Centennial Medical Group Inc and his current practice location is 1342 Ne Medical Center Dr Ste 100, Bend, Oregon. You can reach out to his office (for appointments etc.) via phone at (541) 388-2333.

Mr John A Walker is licensed to practice in Oregon (license number MD10503) 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 1346210994.

Contact Information

Mr John A Walker, MD
1342 Ne Medical Center Dr Ste 100,
Bend, OR 97701-5918
(541) 388-2333
(541) 388-0930

Map and Direction




Physician's Profile

Full NameMr John A Walker
GenderMale
SpecialityGastroenterology
Experience51 Years
Location1342 Ne Medical Center Dr Ste 100, Bend, 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:
  • Mr John A Walker attended and graduated from University Of Texas Southwestern Medical School At Dallas in 1973
  NPI Data:
  • NPI Number: 1346210994
  • Provider Enumeration Date: 01/25/2006
  • Last Update Date: 07/12/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 0547239543
  • Enrollment ID: I20110331000714

Medical Identifiers

Medical identifiers for Mr John A Walker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1346210994NPI-NPPES
00SS91002OtherORREGENCE BLUE CROSS
USA242450MedicaidCA
255661MedicaidOR

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD10503 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Medical CenterRoseburg, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Centennial Medical Group Inc610398296244

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. Mr John A Walker allows following entities to bill medicare on his behalf.
Entity NamePraxis Health Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821068164
PECOS PAC ID: 8325941446
Enrollment ID: O20040128000241
Entity NameCentennial Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518103274
PECOS PAC ID: 6103982962
Enrollment ID: O20090303000063

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. Mr John A Walker 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
Mr John A Walker, MD
2627 Eastover Terrace,
Medford, OR 97504

Ph: (541) 772-5975
Mr John A Walker, MD
1342 Ne Medical Center Dr Ste 100,
Bend, OR 97701-5918

Ph: (541) 388-2333

Reviews and Comments


Internal Medicine Doctors in Bend, OR

Alanna Mozena, MD
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Practice Location: 2500 Ne Neff Rd, Bend, OR 97701
Phone: 541-706-6892    Fax: 541-706-6813
Ashley Marie Twyman, MD
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Practice Location: 2500 Ne Neff Rd, Bend, OR 97701
Phone: 541-706-6892    Fax: 541-706-6813
Dr. Gilbert B. Lee, M.D.
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Ms. Christine Marie Pierson, MD
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Phone: 541-323-4269    
Dr. Michael N Harris, M.D.
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Practice Location: 1501 Ne Medical Center Dr, Bend, OR 97701
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Gordon Jeremy Juriansz, M.D.
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Practice Location: 2500 Ne Neff Rd, Bend, OR 97701
Phone: 541-706-6892    
Dr. Ronald Daniel Rosen, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 918 Ne 5th St, Bend, OR 97701
Phone: 541-388-3804    Fax: 541-388-3856

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.