NPIMap

Individual provider Active NPI

Samuel Neal Marcus, M.D.

  • Gastroenterology Physician
  • Stanford, CA
National Provider Identifier
1396717740
Registry record updated Apr 15, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
A50154 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
Feb 1, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 15, 2024

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X A50154 CA Primary

Addresses

Primary practice location

300 Pasteur Dr
Stanford, CA 94305-2200

Mailing address

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Other practice location 1

2490 Hospital Dr
Suite 211
Mountain View, CA 94040
Phone (650) 988-7488

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20070511000566 CA Practitioner - Gastroenterology 9739086034 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 1977
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Samuel N Marcus M D IncGroup PAC ID 3971748047, 2 clinicians
El Camino Health Medical Network LLCGroup PAC ID 6103115183, 202 clinicians
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

2490 Hospital Dr
Suite 211
Mountain View, CA 94040-4125
Phone (650) 988-7487

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
92.55 of 100Reported as group
Quality
90.42
Promoting interoperability
100
Improvement activities
40
Cost
84.75

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy30
Upper gastrointestinal (GI) endoscopy for acid reflux18

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
50154CAMDGeneral Practice Dentistry
A50154CAMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Samuel N Marcus MD Inc. Gastroenterology CurrentSince May 31, 1991 Accepting new patients
El Camino Health Medical Network, LLC CurrentSince Mar 2, 2026 Accepting new patients
Stanford Health Care CurrentSince Apr 8, 2009 Accepting new patients
Stanford Health Care CurrentSince Apr 8, 2009 Accepting new patients
Stanford Health Care Current Accepting new patients
San Francisco Endoscopy Center LLC Past Accepting new patients
George Triadafilopoulos MD Inc Gastroenterology Past Accepting new patients
Sequoia Health Services Past Accepting new patients
El Camino Hospital Past Accepting new patients
Stanford Hospital and Clinics Past Accepting new patients

Locations

815 Pollard Rd
Los Gatos, CA 95032
Phone (408) 378-6131

2490 Hospital Dr
Ste 211
Mountain View, CA 94040
Phone (650) 988-7488

2204 Grant Rd
Ste 103
Mountain View, CA 94040
Phone (650) 967-8841

2490 Hospital Dr
Mountain View, CA 94040
Phone (650) 261-6861

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

Interoperability endpoints

  • Direct secure messaging: smarcus7452@icare.elcaminohospital.org

Organizations & group practices 10

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 10

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1138752000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1713139200000",
    "number": "1396717740",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2490 Hospital Dr",
            "address_2": "Suite 211",
            "address_purpose": "LOCATION",
            "city": "Mountain View",
            "state": "CA",
            "postal_code": "94040",
            "country_code": "US",
            "telephone_number": "650-988-7488",
            "fax_number": "650-988-7486",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARCUS",
        "first_name": "SAMUEL",
        "middle_name": "NEAL",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-02-01",
        "last_updated": "2024-04-15",
        "certification_date": "2024-04-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "A50154",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.