Viswam Siva Nair, MD

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

A93740 Issued in CA

Practice address

2850 Telegraph Ave Ste 120
Berkeley, CA 94705-1159

Phone

(510) 204-8140

Fax

(510) 506-7721

NPI assigned

Oct 2, 2007

Last updated

Sep 18, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Pulmonary DiseaseAlso: Critical Care (Intensivists)

Education

Other, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Alta Bates Summit Medical Center - Alta Bates Camp Hospital, Berkeley, CA, CCN 050305
• Eden Medical Center Hospital, Castro Valley, CA, CCN 050488
• Alta Bates Summit Medical Center Hospital, Oakland, CA, CCN 050043

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: vnair231463@hisp.ehr.sutterhealth.org

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.

• Sutter Bay Medical Foundation

  dba Palo Alto Medial Foundation

  • Multi-Specialty Clinic/Center
  • Palo Alto, CA
  • NPI 1013950807
  Medicare reassignment Care Compare group NPD
• Sutter Bay Medical Foundation

  dba Sutter Pacific Medical Foundation

  • Multi-Specialty Clinic/Center
  • Sacramento, CA
  • NPI 1003267196
  NPD
• Sutter Bay Medical Foundation

  dba Palo Alto Medical Foundation

  • Clinical Medical Laboratory
  • Santa Clara, CA
  • NPI 1669287033
  NPD
• The Association of University Physicians

  dba University of Washington Physicians

  • Anesthesiology Physician
  • Seattle, WA
  • NPI 1023041159
  NPD
• Sutter East Bay Medical Foundation

  • Clinical Medical Laboratory
  • Berkeley, CA
  • NPI 1831381623
  NPD (past)
• Sutter East Bay Medical Foundation

  • Family Medicine Physician
  • Orinda, CA
  • NPI 1871538769
  NPD (past)

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

• Sutter Bay Hospitals

  dba Eden Medical Center

  • General Acute Care Hospital
  • Castro Valley, CA
  • NPI 1063812907
  Care Compare affiliation
• Sutter Bay Hospitals

  dba Alta Bates Summit Medical Center - Summit Campus

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1295181477
  Care Compare affiliation
• Sutter Bay Hospitals

  dba Alta Bates Summit Medical Center - Alta Bates Campus

  • General Acute Care Hospital
  • Berkeley, CA
  • NPI 1639523004
  Care Compare affiliation

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

{
    "created_epoch": "1191283200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758153600000",
    "number": "1336336460",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 276950",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958276950"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2850 TELEGRAPH AVE STE 120",
            "city": "BERKELEY",
            "state": "CA",
            "postal_code": "947051159",
            "telephone_number": "510-204-8140",
            "fax_number": "510-506-7721"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "825 Eastlake Ave E",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981094405",
            "country_code": "US",
            "telephone_number": "206-520-5000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4053 Lone Tree Way Ste 201",
            "address_purpose": "LOCATION",
            "city": "Antioch",
            "state": "CA",
            "postal_code": "945316210",
            "country_code": "US",
            "telephone_number": "510-204-5479",
            "fax_number": "510-506-7721",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NAIR",
        "first_name": "VISWAM",
        "middle_name": "SIVA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-10-02",
        "last_updated": "2025-09-18",
        "certification_date": "2025-09-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CA",
            "license": "A93740",
            "primary": true
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "WA",
            "license": "MD60959262",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1336336460",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Swathi Nadindla, MD
• James A Nadolny, DDS
• Rebecca Siobhan Nageotte
• Zyna Nahsonhoya
• Asha Gopalan Nair, MD
• Alia Annette Najjar, M.D.
• Clifford Nakamoto, D.D.S.
• Sara Nakasone
• Gina Nakata, PHARM D
• Allyson Sumi Nakayama, LCSW

• Pulmonary Disease Physician in Berkeley, CA
• Providers in Berkeley, CA by specialty
• Pulmonary Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.