Heidi Chang, MD

Individual provider Active NPI Obstetrics & Gynecology Physician · Walnut Creek, CA

NPI 1649681982 · NPPES record last updated Nov 13, 2024

Key facts

NPI
1649681982
Entity type
Individual (NPI type 1)
Primary specialty
Obstetrics & Gynecology Physician 207V00000X
License
A128445 (CA)
Practice address
2637 Shadelands Dr
Walnut Creek, CA 94598-2512
Phone
(925) 393-0033
Fax
(925) 301-8956
NPI assigned
May 8, 2014
Sex
Female
Sole proprietor
Yes

Organizations & group practices 8

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.

Hospital & facility affiliations 5

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

Medicare Care Compare profile

Specialty
Obstetrics/Gynecology
Education
University of Virginia School of Medicine, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Emergency and Acute Care Medical Corporation (431 clinicians)
South Coast Gynecologic Oncology Inc (7 clinicians)

Practice addresses (Care Compare)

5555 Grossmont Ctr Dr
La Mesa, CA 91942-3019
Phone (619) 740-6000

9095 Rio San Diego Dr
Suite 425
San Diego, CA 92108-1679
Phone 8584555524205

Hospital & facility affiliations

  • Sharp Memorial Hospital Hospital · San Diego, CA · CCN 050100
  • Grossmont Hospital Hospital · La Mesa, CA · CCN 050026
  • Sharp Coronado Hospital and Hlthcr Ctr Hospital · Coronado, CA · CCN 050234
  • Sharp Chula Vista Medical Center Hospital · Chula Vista, CA · CCN 050222

Merit-based Incentive Payment System (MIPS)

Final score
95.17 of 100 (group)
Quality
86.93
Promoting interoperability
100
Improvement activities
40
Cost
72.6

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Melanoma (skin cancer) excision1-10
Removal of the uterus22

Medicare participation

Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

Enrollment IDStateProvider typePAC IDDetails
I20160510002097 CA Practitioner - Obstetrics/Gynecology 6901195262 Reassigns benefits to 4 organizations

National Provider Directory

Medicare enrollment (NPD)
Yes
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
128445CAMDMarriage & Family Therapist
A128445CAMDObstetrics & Gynecology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
South Coast Gynecologic Oncology, Inc Current
since Feb 3, 2025
Accepting new patients
County of Los Angeles Current Accepting new patients
Emergency and Acute Care Medical Corporation Current
since Mar 1, 2025
Accepting new patients
County of Los Angeles Auditor Controller Current
since Apr 1, 2016
Accepting new patients
Bass Medical Group Obstetrics & Gynecology Current Accepting new patients
County of Los Angeles Current
since Apr 1, 2016
Accepting new patients
Bass Medical Group Current
since Jul 20, 2019
Accepting new patients
Bass Medical Group Current
since Jul 20, 2019
Accepting new patients

Locations

1505 Saint Alphonsus Way
Alamo, CA 94507
Phone (925) 837-4225

5555 Grossmont Center Dr
La Mesa, CA 91942
Phone (619) 465-0711

7901 Frost St
San Diego, CA 92123
Phone (619) 541-3400

9095 Rio San Diego Dr
Ste 425
San Diego, CA 92108
Phone 8584555524 ext. 205

14445 Olive View Dr
Sylmar, CA 91342
Phone (881) 836-4303

365 Lennon Ln
Ste 250
Walnut Creek, CA 94598
Phone (925) 627-3424

2637 Shadelands Dr
Walnut Creek, CA 94598
Phone (925) 627-3424

Interoperability endpoints

  • Direct secure messaging: hchang46799@alamedahs.direct-ci.com
  • Direct secure messaging: hchang462142@hisp.ehr.sutterhealth.org

Specialties & licenses

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X A128445 CA Yes

Addresses

Primary practice location

2637 Shadelands Dr
Walnut Creek, CA 94598-2512

Mailing address

2637 Shadelands Dr
Walnut Creek, CA 94598-2512
Phone (925) 393-0033

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API JSON format, last updated by the provider on Nov 13, 2024.

{
    "created_epoch": "1399507200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1731456000000",
    "number": "1649681982",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2637 SHADELANDS DR",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982512",
            "telephone_number": "925-393-0033",
            "fax_number": "925-301-8956"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2637 SHADELANDS DR",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982512",
            "telephone_number": "925-393-0033",
            "fax_number": "925-301-8956"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "HEIDI",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2014-05-08",
        "last_updated": "2024-11-13",
        "certification_date": "2024-11-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "A128445",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Walnut Creek, CA

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Sources for this page

Verify at the official NPI Registry.