Duane D. Stephens, M.D.

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

G31064 Issued in CA

Practice address

3300 Webster St
Suite 404-410
Oakland, CA 94609-3117

Phone

(510) 549-4220

Fax

(510) 433-0744

NPI assigned

Jul 26, 2006

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

Cardiovascular Disease (Cardiology)

Education

University of California, Geffen School of Medicine, 1974

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Berkeley Cardiovascular Medical GroupGroup PAC ID 6204733835, 3 clinicians

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
• Alta Bates Summit Medical Center Hospital, Oakland, CA, CCN 050043

Merit-based Incentive Payment System (MIPS)

Final score

21.71 of 100Reported as individual

Quality

0

Improvement activities

0

Cost

72.35

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dstephens161365@hisp.ehr.sutterhealth.org
• Direct secure messaging: duane.stephens.1@25176.direct.athenahealth.com

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.

• Sutter Bay Medical Foundation

  • Multi-Specialty Clinic/Center
  • Palo Alto, CA
  • NPI 1013950807
  Medicare reassignment Care Compare group NPD
• Berkeley Cardiovascular Medical Group

  • Cardiovascular Disease Physician
  • Oakland, CA
  • NPI 1194746057
  Medicare reassignment Care Compare group
• Sutter Bay Medical Foundation

  • Clinical Medical Laboratory
  • Santa Clara, CA
  • NPI 1669287033
  NPD
• Bass Medical Group

  • Specialist
  • Walnut Creek, CA
  • NPI 1154401941
  NPD (past)
• California Pacific Medical Group, Inc.

  • Multi-Specialty Clinic/Center
  • Oakland, CA
  • NPI 1275002453
  NPD (past)
• Medical Insights Diagnostic Centers Concord Professional Corporation

  • Diagnostic Radiology Physician
  • San Leandro, CA
  • NPI 1205990389
  NPD (past)
• Medical Insights Diagnostic Centers Concord Professional Corporation

  • Diagnostic Radiology Physician
  • Palm Desert, CA
  • NPI 1982142758
  NPD (past)
• Sutter East Bay Medical Foundation

  • Clinical Medical Laboratory
  • Berkeley, CA
  • NPI 1831381623
  NPD (past)

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

• Sutter Bay Hospitals

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

  • 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": "1153872000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750809600000",
    "number": "1972526044",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3300 WEBSTER ST",
            "address_2": "SUITE 404-410",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946093117",
            "telephone_number": "510-549-4220",
            "fax_number": "510-433-0744"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3300 WEBSTER ST",
            "address_2": "SUITE 404-410",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946093117",
            "telephone_number": "510-549-4220",
            "fax_number": "510-433-0744"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2450 Ashby Ave",
            "address_purpose": "LOCATION",
            "city": "Berkeley",
            "state": "CA",
            "postal_code": "947052067",
            "country_code": "US",
            "telephone_number": "510-204-4444",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "STEPHENS",
        "first_name": "DUANE",
        "middle_name": "D.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-26",
        "last_updated": "2025-06-25",
        "certification_date": "2025-06-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "CA",
            "license": "G31064",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "CA",
            "license": "G31064",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G310640",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Stephanie M. Wong, M.D., Inc.
• Stephen J Sommer MD a Professional Corporation
• Stephen M. Lee, DDS
• Karen V. Stephen, PH.D.
• Jennifer Laverne Stephens-Pierre
• G. Marcus Stephens
• Starr Linn Stephens, P.T.
• Thomas Morgan Stephens II, PA-C
• Christopher Lee Stephenson
• Grace Stephenson, AMFT

• Cardiovascular Disease Physician in Oakland, CA
• Providers in Oakland, CA by specialty
• Cardiovascular Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 25, 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.