NPIMap

Individual provider Active NPI

Aussama Khalaf Nassar, MD

  • Surgery Physician
  • Palo Alto, CA
National Provider Identifier
1326589870
Registry record updated Apr 27, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
C148059 Issued in CA
Practice address
300 Pasteur Dr
Palo Alto, CA 94305-2200
Phone
(650) 723-4000
Fax
(650) 725-1216
NPI assigned
Mar 16, 2017
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 27, 2024

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X C148059 CA Primary
Surgical Critical Care Physician 2086S0102X 148059 CA
Trauma Surgery Physician 2086S0127X 148059 CA

Addresses

Primary practice location

300 Pasteur Dr
Palo Alto, CA 94305-2200

Mailing address

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

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
I20170419001670 CA Practitioner - General SurgeryPractitioner - Critical Care (Intensivists) 2769768126 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
General SurgeryAlso: Critical Care (Intensivists)
Education
Other, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

170 Alameda de Las Pulgas
Redwood City, CA 94062-2751
Phone (650) 369-5811

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

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
88.53 of 100Reported as group
Quality
87.08
Promoting interoperability
100
Improvement activities
40
Cost
69.51

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Hernia repair - groin (open)1-10
Hernia repair (minimally invasive)1-10
Upper gastrointestinal (GI) endoscopy for acid reflux1-10
Removal of tissue1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
C148059CAMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Stanford Health Care CurrentSince Mar 15, 2017 Accepting new patients
LPCH Medical Group Div of Lucile CurrentSince Sep 30, 2017 Accepting new patients
Stanford Health Care Surgery CurrentSince Mar 15, 2017 Accepting new patients

Locations

900 Blake Wilbur Dr
Palo Alto, CA 94304
Phone (650) 498-6004

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

300 Pasteur Dr
#67
Stanford, CA 94305

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

Interoperability endpoints

  • Direct secure messaging: anassar177560@direct.stanfordhealthcare.org

Organizations & group practices 3

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 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": "1489622400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1714176000000",
    "number": "1326589870",
    "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": "943052200",
            "telephone_number": "650-723-4000",
            "fax_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": "943052200",
            "telephone_number": "650-723-4000",
            "fax_number": "650-725-1216"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NASSAR",
        "first_name": "AUSSAMA",
        "middle_name": "KHALAF",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-03-16",
        "last_updated": "2024-04-27",
        "certification_date": "2024-04-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "C148059",
            "primary": true
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "CA",
            "license": "148059",
            "primary": false
        },
        {
            "code": "2086S0127X",
            "taxonomy_group": "",
            "desc": "Surgery, Trauma Surgery",
            "state": "CA",
            "license": "148059",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.