Active NPI
Anne An-Ru Chen, M.D.
- Internal Medicine Physician
- Vacaville, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- A83589
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
Enrollment records 1
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
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
- Healthflex Home Health Services
- Angelcare Home Health Services, LLC
- Sutter Care at Home
- Sutter Medical Center, Sacramento
- Northbay Medical Center
- Sutter Solano Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 93.65 of 100
- 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
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Anne Chen MD Inc | Internal Medicine | Current | Accepting new patients |
| Sutter Valley Medical Foundation | Current | Accepting new patients | |
| Sutter Valley Medical Foundation | Internal Medicine | Current | 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
- 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.
-
- Internal Medicine Physician
- Fairfield, CA
- NPI 1760424212
-
- Multi-Specialty Clinic/Center
- Modesto, CA
- NPI 1669846986
Internal Medicine
-
- Durable Medical Equipment & Medical Supplies
- Tracy, CA
- NPI 1720930712
-
- General Acute Care Hospital
- Fairfield, CA
- NPI 1821147786
-
- Ambulatory Surgical Clinic/Center
- Yuba City, CA
- NPI 1144251521
Hospital & facility affiliations 7
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Fremont, CA
- NPI 1558727776
-
- Home Health Agency
- Oakland, CA
- NPI 1326399296
-
- General Acute Care Hospital
- Fairfield, CA
- NPI 1821147786
-
- Home Health Agency
- Fremont, CA
- NPI 1902371446
-
- General Acute Care Hospital
- Vallejo, CA
- NPI 1366686248
-
- General Acute Care Hospital
- Sacramento, CA
- NPI 1811946734
-
- Home Health Agency
- Concord, CA
- NPI 1083643944
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 30, 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.