Individual provider Active NPI

Chiaching Wang, MD

  • Hematology (Internal Medicine) Physician
  • San Francisco, CA
National Provider Identifier
1922260520
Registry record updated Apr 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology (Internal Medicine) PhysicianTaxonomy code 207RH0000X
License
A119101 Issued in CA
Practice address
513 Parnassus Ave
San Francisco, CA 94143
Phone
(415) 476-9363
NPI assigned
Jun 26, 2008
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 30, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A119101 CA
Hematology (Internal Medicine) Physician 207RH0000X A119101 CA Primary
Medical Oncology Physician 207RX0202X A119101 CA

Addresses

Primary practice location

513 Parnassus Ave
San Francisco, CA 94143

Mailing address

513 Parnassus Ave
San Francisco, CA 94143-2205
Phone (415) 476-9363

Other practice location 1

1001 Potrero Ave
Bldg. 5, 4C
San Francisco, CA 94110-3518
Phone (628) 206-2407

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20150505001224 CA Practitioner - Hematology/Oncology 8022286293 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Other, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University of California SFGH Medical GroupGroup PAC ID 5496668410, shared by 14 NPIs, 566 clinicians

Practice addresses (Care Compare)

1001 Potrero Ave
San Francisco, CA 94110-3518

400 Parnassus Ave
McB300
San Francisco, CA 94143-0810
Phone (415) 476-1000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
84.89 of 100Reported as group
Quality
81.13
Improvement activities
40
Cost
71.5

Merit-based Incentive Payment System (MIPS)

Final score
97.28 of 100Reported as group
Quality
89.92
Promoting interoperability
100
Improvement activities
40
Cost
78.23

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
119101CAMDMarriage & Family Therapist
A119101CAMDMedical Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
City & County of San Francisco Current Accepting new patients
University of California San Francisco CurrentSince Jul 1, 2015 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jul 1, 2015 Accepting new patients
University of California San Francisco Internal Medicine CurrentSince Jul 1, 2015 Accepting new patients
University of California SFGH Medical Group Internal Medicine CurrentSince Jul 1, 2015 Accepting new patients
University of California SFGH Medical Group Current Accepting new patients
UCSF Medical Group Business Services Internal Medicine CurrentSince Jul 1, 2015 Accepting new patients
University of California SFGH Medical Group Hematology CurrentSince Mar 15, 2015 Accepting new patients
City and County of San Francisco CurrentSince Nov 10, 2019 Accepting new patients
Regents of the University of California Internal Medicine CurrentSince Jul 1, 2015 Accepting new patients
University of California San Francisco Current Accepting new patients
City & County of San Francisco CurrentSince Nov 10, 2019 Accepting new patients
University of California SFGH Medical Group CurrentSince Mar 15, 2015 Accepting new patients
Regents of the University of California Past Accepting new patients
University of California San Francisco Past Accepting new patients
University of California San Francisco Medical Center Past Accepting new patients

Locations

1001 Potrero Ave
San Francisco, CA 94110
Phone (415) 206-2305

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

1001 Potrero Ave
Rm 5H22
San Francisco, CA 94110
Phone (628) 206-4774

1600 Divisadero St
Fl 3
San Francisco, CA 94143
Phone (415) 353-7171

1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753

400 Parnassus Ave
San Francisco, CA 94143
Phone (415) 353-2000

1701 Divisadero St
Ste 480
San Francisco, CA 94115
Phone (415) 353-8392

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

1001 Potrero Ave
Bldg 80
San Francisco, CA 94110
Phone (628) 206-8610

513 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-1239

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

400 Parnassus Ave
#300
San Francisco, CA 94143
Phone (415) 476-2163

513 Parnassus Ave
Ste S380
San Francisco, CA 94143
Phone (415) 476-9362

1701 Divisadero St
Fl 3
San Francisco, CA 94115
Phone (415) 353-7800

Interoperability endpoints

  • Direct secure messaging: cwang50350@direct-ucsfmedicalcenter.org

Organizations & group practices 16

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.

View all 16

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": "1214438400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1922260520",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "513 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432205",
            "telephone_number": "415-476-9363"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "513 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "94143",
            "telephone_number": "415-476-9363"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1001 Potrero Ave",
            "address_2": "Bldg. 5, 4C",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941103518",
            "country_code": "US",
            "telephone_number": "628-206-2407",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WANG",
        "first_name": "CHIACHING",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-06-26",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A119101",
            "primary": false
        },
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "CA",
            "license": "A119101",
            "primary": true
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "CA",
            "license": "A119101",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.