NPIMap

Individual provider Active NPI

Pei H Tsau, MD

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Palo Alto, CA
National Provider Identifier
1235203910
Registry record updated May 28, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianTaxonomy code 208G00000X
License
C55016 Issued in CA
Practice address
87 Encina Ave
Palo Alto, CA 94301-2322
Phone
(650) 853-5745
NPI assigned
Nov 17, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 28, 2020

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X 29184 AZ
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X C55016 CA Primary

Addresses

Primary practice location

87 Encina Ave
Palo Alto, CA 94301-2322

Mailing address

325 Distel Cir
Los Altos, CA 94022-1408
Phone (650) 853-5745

Other practice location 1

2900 Whipple Ave
Suite 225
Redwood City, CA 94062-2843
Phone (650) 366-0225

Other practice location 2

2490 Hospital Dr Ste 109
Mountain View, CA 94040-4125
Phone (650) 404-8250

Other identifiers 2

IdentifierTypeStateIssuer
697336MedicaidAZ
P00804180OtherAZRR MEDICARE

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
I20120525000169 CA Practitioner - Cardiac SurgeryPractitioner - Thoracic Surgery 5193851996 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiac SurgeryAlso: Thoracic Surgery
Education
University of Arizona College of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Southern California Permanente Medical GroupGroup PAC ID 6002729175, shared by 4 NPIs, 11,250 clinicians

Practice addresses (Care Compare)

9961 Sierra Ave
Fontana, CA 92335-6720
Phone (909) 427-5000

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Coronary artery bypass graft (CABG)11

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
55016CAMDDentist
29184AZMDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Southern California Permanente Medical Group CurrentSince Jan 20, 2026 Accepting new patients
Southern California Permanente Medical Group CurrentSince Jan 20, 2026 Accepting new patients
Southern California Permanente Medical Group CurrentSince Jan 20, 2026 Accepting new patients
Carondelet Specialist Group, Inc Thoracic Surgery (Cardiothoracic Vascular Surgery) PastSince Jan 1, 2010 Accepting new patients
Arizona Diagnostic Pathology Associates PLLC PastSince Oct 27, 2024 Accepting new patients

Interoperability endpoints

  • Direct secure messaging: ptsau115273@hisp.ehr.sutterhealth.org

Organizations & group practices 7

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

Hospital & facility affiliations 3

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": "1163721600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1590624000000",
    "number": "1235203910",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "325 DISTEL CIR",
            "city": "LOS ALTOS",
            "state": "CA",
            "postal_code": "940221408",
            "telephone_number": "650-853-5745"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "87 ENCINA AVE",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943012322",
            "telephone_number": "650-853-5745"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2900 Whipple Ave",
            "address_2": "Suite 225",
            "address_purpose": "LOCATION",
            "city": "Redwood City",
            "state": "CA",
            "postal_code": "940622843",
            "country_code": "US",
            "telephone_number": "650-366-0225",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2490 Hospital Dr Ste 109",
            "address_purpose": "LOCATION",
            "city": "Mountain View",
            "state": "CA",
            "postal_code": "940404125",
            "country_code": "US",
            "telephone_number": "650-404-8250",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TSAU",
        "first_name": "PEI",
        "middle_name": "H",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-17",
        "last_updated": "2020-05-28",
        "certification_date": "2020-05-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "AZ",
            "license": "29184",
            "primary": false
        },
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "CA",
            "license": "C55016",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "697336",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDICARE",
            "identifier": "P00804180",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.