Individual provider Active NPI

Anne An-Ru Chen, M.D.

  • Internal Medicine Physician
  • Vacaville, CA
National Provider Identifier
1003852708
Registry record updated Sep 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A83589 Issued in CA
Practice address
770 Mason St
Vacaville, CA 95688-4646
Phone
(707) 427-4900
Fax
(707) 454-5911
NPI assigned
Jun 21, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 30, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A83589 CA Primary

Addresses

Primary practice location

770 Mason St
Vacaville, CA 95688-4646

Mailing address

PO Box 255228
Sacramento, CA 95865-5228

Other practice location 1

1127 Texas St
Suite A
Fairfield, CA 94533-5745
Phone (707) 426-6060

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
I20031120001022 CA Practitioner - Internal Medicine 4385548429 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Albert Einstein College of Medicine of Yeshiva University, 2000
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Sutter Valley Medical FoundationGroup PAC ID 9830094515, 2,473 clinicians

Practice addresses (Care Compare)

2560 N Texas St C
Fairfield, CA 94533-1649
Phone (707) 423-4355

2702 Low CT
Fairfield, CA 94534-9771
Phone (707) 432-2600

2720 Low CT
Fairfield, CA 94534-9771
Phone (707) 428-2731

770 Mason St
Vacaville, CA 95688-4646
Phone (707) 454-5800

Hospital & facility affiliations

  • Silverline Staff Home Health Home health agency, Fremont, CA, CCN 559548
  • Healthflex Home Health Services Home health agency, Oakland, CA, CCN 059551
  • Angelcare Home Health Services, LLC Home health agency, Milpitas, CA, CCN 053162
  • Sutter Care at Home Home health agency, Concord, CA, CCN 057004
  • Sutter Medical Center, Sacramento Hospital, Sacramento, CA, CCN 050108
  • Northbay Medical Center Hospital, Fairfield, CA, CCN 050367
  • Sutter Solano Medical Center Hospital, Vallejo, CA, CCN 050101

Merit-based Incentive Payment System (MIPS)

Final score
93.65 of 100Reported as group
Quality
86.8
Promoting interoperability
100
Improvement activities
40
Cost
86.36

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Anne Chen MD Inc Internal Medicine CurrentSince Sep 1, 2006 Accepting new patients
Sutter Valley Medical Foundation CurrentSince Sep 30, 2025 Accepting new patients
Sutter Valley Medical Foundation Internal Medicine CurrentSince Sep 30, 2025 Accepting new patients
Northbay Healthcare Group Past Accepting new patients
Sutter North Medical Foundation Past Accepting new patients

Locations

1127 Texas St
Ste A
Fairfield, CA 94533
Phone (707) 426-6060

2560 N Texas St
Ste C
Fairfield, CA 94533
Phone (707) 423-4355

2720 Low Ct
Fairfield, CA 94534
Phone (707) 428-2731

150 Catherine Ln
Ste F
Grass Valley, CA 95945
Phone (530) 477-8358

815 Court St
Ste 7
Jackson, CA 95642
Phone (209) 257-5900

600 Coffee Rd
Modesto, CA 95355
Phone (209) 550-4755

2800 L St
Ste 500
Sacramento, CA 95816
Phone (916) 454-6850

770 Mason St
Vacaville, CA 95688
Phone (707) 446-2935

250 W Main St
Woodland, CA 95695
Phone (916) 668-6100

Interoperability endpoints

  • Direct secure messaging: achenmd22654@hisp.ehr.sutterhealth.org

Organizations & group practices 5

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 7

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": "1150848000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759190400000",
    "number": "1003852708",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 255228",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958655228"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "770 MASON ST",
            "city": "VACAVILLE",
            "state": "CA",
            "postal_code": "956884646",
            "telephone_number": "707-427-4900",
            "fax_number": "707-454-5911"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1127 Texas St",
            "address_2": "Suite A",
            "address_purpose": "LOCATION",
            "city": "Fairfield",
            "state": "CA",
            "postal_code": "945335745",
            "country_code": "US",
            "telephone_number": "707-426-6060",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHEN",
        "first_name": "ANNE",
        "middle_name": "AN-RU",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-21",
        "last_updated": "2025-09-30",
        "certification_date": "2025-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A83589",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Vacaville, CA

Sources for this page

Verify at the official NPI Registry.