Samuel Neal Marcus, MD - Medicare Gastroenterology in Stanford, CA

Samuel Neal Marcus, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Stanford, California. He graduated from medical school in 1977 and has 47 years of diverse experience with area of expertise as Gastroenterology. His current practice location is 300 Pasteur Dr, Stanford, California. You can reach out to his office (for appointments etc.) via phone at (650) 723-4000.

Samuel Neal Marcus is licensed to practice in California (license number A50154) 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 1396717740.

Contact Information

Samuel Neal Marcus, MD
300 Pasteur Dr,
Stanford, CA 94305-2200
(650) 723-4000
Not Available



Physician's Profile

Full NameSamuel Neal Marcus
GenderMale
SpecialityGastroenterology
Experience47 Years
Location300 Pasteur Dr, Stanford, California
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:
  • Samuel Neal Marcus graduated from medical school in 1977
  NPI Data:
  • NPI Number: 1396717740
  • Provider Enumeration Date: 02/01/2006
  • Last Update Date: 04/15/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 9739086034
  • Enrollment ID: I20070511000566

Medical Identifiers

Medical identifiers for Samuel Neal Marcus such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396717740NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A50154 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
El Camino HospitalMountain view, CAHospital
Stanford Health CareStanford, CAHospital

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. Samuel Neal Marcus allows following entities to bill medicare on his behalf.
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348

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Entity NameBass Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174253405
PECOS PAC ID: 9032111281
Enrollment ID: O20070201000181

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› Verified 2 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. Samuel Neal Marcus 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
Samuel Neal Marcus, MD
300 Pasteur Dr,
Stanford, CA 94305-2200

Ph: (650) 723-4000
Samuel Neal Marcus, MD
300 Pasteur Dr,
Stanford, CA 94305-2200

Ph: (650) 723-4000

News Archive

White House, lawmakers brace for high court health care decision and plot responses

As almost all of Washington waits breathlessly for the Supreme Court's ruling on the constitutionality of the health law, Reuters profiles the actual "secret keepers" - the court clerks.

Scientists figure out how to dodge HPV-triggered cancers by vaccination

In 2009, more than 30,000 people in the U.S. learned they had cancer linked to the human papillomavirus, or HPV. This virus is best known for causing cervical cancer, but it's also the culprit behind many cancers of the mouth, throat, anus, and genitals. Unlike many forms of cancer, for which we lack the knowledge and tools to prevent, scientists have figured out how to dodge HPV-triggered cancers — by HPV vaccination.

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The WHO and Roll Back Malaria partnership (RBM) on Wednesday launched an initiative to "stop a form of drug-resistant malaria from spreading from Southeast Asia to Africa, where millions of lives could be at risk," Reuters reports. "It would cost about $175 million a year to contain and prevent the global spread of the artemisinin-resistant parasite which first emerged along the Thai-Cambodian border in 2007, the United Nations agency said," according to the news agency (Nebehay, 1/12).

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› Verified 2 days ago


Internal Medicine Doctors in Stanford, CA

Prista Charuworn, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 300 Pasteur Dr, Alway Build M211, Mc 5187, Stanford, CA 94305
Phone: 650-723-6661    
Yu Kuang Lai, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Andrea Lorenze, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Drive, Lane 154, Stanford, CA 94305
Phone: 650-723-6661    Fax: 650-498-6205
Audra Horomanski, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    Fax: 650-498-6205
Meghan Brady Marmor, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Lauren Michelle Ulsh, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Ann M Chen, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, A149, Mc5202, Stanford, CA 94305
Phone: 650-725-3376    Fax: 650-723-8305

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