NPIMap

Individual provider Active NPI

Marcus Sinewe, MD

  • Emergency Medicine Physician
  • Palo Alto, CA
National Provider Identifier
1699206664
Registry record updated Jul 31, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A200900 Issued in CA
Practice address
300 Pasteur Dr
Palo Alto, CA 94304-2203
Phone
(650) 723-4000
NPI assigned
Mar 22, 2017
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 31, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 35.147271 OH
Emergency Medicine Physician 207P00000X 0101273419 VA
Emergency Medicine Physician 207P00000X A200900 CA Primary

Addresses

Primary practice location

300 Pasteur Dr
Palo Alto, CA 94304-2203

Mailing address

300 Pasteur Dr
Palo Alto, CA 94304-2203
Phone (650) 723-4000

Other practice location 1

900 Welch Rd
Palo Alto, CA 94304-1805
Phone (650) 285-9071

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in VA, OH, CA3 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20211115000147 VA Practitioner - Emergency Medicine 3971935511 Reassigns benefits to 1 organization
I20230428001157 OH Practitioner - Emergency Medicine 3971935511 Reassigns benefits to 3 organizations
I20250411002772 CA Practitioner - Emergency Medicine 3971935511 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
University of Toledo College of Medicine, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

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

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A200900CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Riverside Physician Services Inc Current Accepting new patients
PHS Emergency Billing LLC Emergency Medicine CurrentSince Jan 1, 2025 Accepting new patients
Stanford Health Care Emergency Medicine CurrentSince Apr 2, 2025 Accepting new patients
Riverside Physician Services Inc CurrentSince Nov 1, 2021 Accepting new patients
Miami Valley Emergency Specialists, LLC Emergency Medicine CurrentSince Oct 14, 2023 Accepting new patients
LPCH Medical Group Div of Lucile CurrentSince Apr 2, 2025 Accepting new patients
Emergency Medicine Specialists Inc Emergency Medicine Current Accepting new patients
Stanford Health Care CurrentSince Apr 2, 2025 Accepting new patients
Emergency Medicine Specialists, Inc Emergency Medicine CurrentSince Apr 24, 2023 Accepting new patients
Emergency Medicine Specialists, Inc Emergency Medicine CurrentSince Apr 24, 2023 Accepting new patients
Riverside Physician Services Inc Emergency Medicine CurrentSince Nov 1, 2021 Accepting new patients
Stanford Health Care Emergency Medicine Current Accepting new patients
Emergency Medicine Specialists Inc Emergency Medicine Past Accepting new patients

Locations

725 Welch Rd
Palo Alto, CA 94304
Phone (650) 497-8979

900 Welch Rd
Palo Alto, CA 94304
Phone (650) 498-5391

300 Pasteur Dr
Palo Alto, CA 94304
Phone (650) 723-6469

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

1 Wyoming St
Dayton, OH 45409
Phone (937) 208-2636

2400 Miami Valley Dr
Dayton, OH 45459
Phone (937) 208-8394

9000 N Main St
Englewood, OH 45415
Phone (937) 208-8394

4940 Cottonville Rd
Jamestown, OH 45335
Phone (937) 298-4417

3535 Southern Blvd
Kettering, OH 45429
Phone (937) 298-1221

4000 Miamisburg Centerville Rd
Miamisburg, OH 45342
Phone (937) 384-8791

3131 Newmark Dr
Ste 220
Miamisburg, OH 45342

1 Medical Center Dr
Middletown, OH 45005
Phone (513) 424-2111

3130 N County Road 25A
Troy, OH 45373
Phone (937) 440-4000

3130 N County Road 25A
Ste 114
Troy, OH 45373
Phone (937) 440-7665

856 J Clyde Morris Blvd
Ste A
Newport News, VA 23601
Phone (757) 316-5900

1500 Commonwealth Ave
Williamsburg, VA 23185
Phone (757) 585-2200

Organizations & group practices 13

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.

View all 13

Hospital & facility affiliations 7

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": "1490140800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753920000000",
    "number": "1699206664",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042203",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042203",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "900 Welch Rd",
            "address_purpose": "LOCATION",
            "city": "Palo Alto",
            "state": "CA",
            "postal_code": "943041805",
            "country_code": "US",
            "telephone_number": "650-285-9071",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SINEWE",
        "first_name": "MARCUS",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-03-22",
        "last_updated": "2025-07-31",
        "certification_date": "2025-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "OH",
            "license": "35.147271",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "VA",
            "license": "0101273419",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A200900",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.