Graham Walker, MD - Medicare Emergency Medicine in Stanford, CA

Graham Walker, MD is a medicare enrolled "Emergency Medicine" physician in Stanford, California. His current practice location is 300 Pasteur Dr, Mc: 5500, Stanford, California. You can reach out to his office (for appointments etc.) via phone at (650) 723-4000.

Graham Walker is licensed to practice in California (license number A115729) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1093951949.

Contact Information

Graham Walker, MD
300 Pasteur Dr, Mc: 5500,
Stanford, CA 94305-2200
(650) 723-4000
Not Available



Physician's Profile

Full NameGraham Walker
GenderMale
SpecialityEmergency Medicine
Location300 Pasteur Dr, Stanford, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1093951949
  • Provider Enumeration Date: 12/24/2008
  • Last Update Date: 02/11/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9133307291
  • Enrollment ID: I20110621000291

Medical Identifiers

Medical identifiers for Graham Walker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1093951949NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A115729 (California)Primary

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. Graham Walker allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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› Verified 9 days ago

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. Graham 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
Graham Walker, MD
300 Pasteur Dr, Mc: 5500,
Stanford, CA 94305-2200

Ph: (650) 723-4000
Graham Walker, MD
300 Pasteur Dr, Mc: 5500,
Stanford, CA 94305-2200

Ph: (650) 723-4000

News Archive

Brown University explores effect of chemical exposures on the brain and thyroid during pregnancy, childhood

Exposure to the endocrine disrupting chemicals bisphenol A, triclosan and phthalates is ubiquitous in the United States, raising concerns that they may affect health. With a new four-year, $1.5 million grant from the National Institutes of Health, Brown University epidemiologist Joseph Braun will try to close a gap in research: the effect of these exposures on the brain and thyroid during pregnancy and childhood.

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A group of Montreal researchers has discovered that GCN2, a protein in cells that inhibits the conversion of new information into long-term memory, may be a master regulator of the switch from short-term to long-term memory.

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Emergency Medicine Doctors in Stanford, CA

Enoch Akuffo Obeng, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Timothy John Batchelor, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Swaminatha V Mahadevan, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Kelly Nicole Roszczynialski, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Dr. Calvin Eric Hwang, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 341 Galvez St, Lower Level, Stanford, CA 94305
Phone: 650-725-8202    
Shawn Keiji Kaku, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    

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