Tammy T Chang, M.D., PH.D.

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

A90279 Issued in CA

Practice address

513 Parnassus Ave
S321
San Francisco, CA 94143-0470

Phone

(415) 476-1239

Fax

(415) 502-1259

NPI assigned

Dec 24, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

General Surgery

Education

Harvard Medical School, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

UCSF Dept of SurgeryGroup PAC ID 7719886373, 211 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• UCSF Medical Center Hospital, San Francisco, CA, CCN 050454

Merit-based Incentive Payment System (MIPS)

Final score

97.51 of 100Reported as group

Quality

92.74

Improvement activities

40

Cost

72.4

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tchang10912@direct-ucsfmedicalcenter.org

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.

• UCSF Dept of Surgery

  • Surgery Physician
  • San Francisco, CA
  • NPI 1477627537
  Medicare reassignment Care Compare group NPD
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104

  Surgery

  Medicare reassignment NPD
• University of California San Francisco

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment NPD
• University of California SFGH Medical Group

  • Surgery Physician
  • San Francisco, CA
  • NPI 1477528503
  Medicare reassignment NPD
• UCSF Medical Group Business Services

  • Health Service Clinic/Center
  • San Francisco, CA
  • NPI 1194115246
  NPD
• University of California San Francisco

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1164512851

  Surgery

  NPD
• University of California San Francisco

  • Community/Retail Pharmacy
  • San Francisco, CA
  • NPI 1659141711
  NPD
• University of California San Francisco

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • San Francisco, CA
  • NPI 1992818256
  NPD (past)
• University of California San Francisco Medical Center

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1144325440
  NPD (past)

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

• University of California, San Francisco

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1689772592
  Care Compare affiliation

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

{
    "created_epoch": "1198454400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1198454400000",
    "number": "1972787174",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "513 PARNASSUS AVE",
            "address_2": "S321",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430470",
            "telephone_number": "415-476-1239",
            "fax_number": "415-502-1259"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "513 PARNASSUS AVE",
            "address_2": "S321",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430470",
            "telephone_number": "415-476-1239",
            "fax_number": "415-502-1259"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "TAMMY",
        "middle_name": "T",
        "name_prefix": "Dr.",
        "credential": "M.D., PH.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-12-24",
        "last_updated": "2007-12-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "A90279",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sophia Whasun Chang, MD
• Stephanie W Chang
• Steven C Chang, M.D.
• Steven Edward Chang, D.O.
• Susan M Chang, MD
• Te Ning Chang, MD, PHD
• Tiffany Chang
• Tiffany Yung-Chin Chang, M.D.
• Tina Chang, NP
• Toby Wai Chang, PHARM.D.

• Surgery Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 24, 2007; 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.