Individual provider Active NPI

Sam Chitsaz, M.D.

  • Cardiovascular Disease Physician
  • Antioch, CA
National Provider Identifier
1821364084
Registry record updated Oct 23, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
A153515 Issued in CA
Practice address
4053 Lone Tree Way Ste 200
Antioch, CA 94531-6210
Phone
(925) 776-7725
Fax
(510) 506-7728
NPI assigned
Mar 31, 2012
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 23, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Cardiovascular Disease Physician 207RC0000X A153515 CA Primary
Cardiovascular Disease Physician 207RC0000X R6761 TX

Addresses

Primary practice location

4053 Lone Tree Way Ste 200
Antioch, CA 94531-6210

Mailing address

4053 Lone Tree Way Ste 200
Antioch, CA 94531-6210
Phone (925) 776-7725

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
I20211117000473 CA Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Interventional Cardiology 0547488728 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)Also: Interventional Cardiology
Education
Other, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

Practice addresses (Care Compare)

20130 Lake Chabot Rd
Castro Valley, CA 94546-5340

2220 Gladstone Dr
Suite 3
Pittsburg, CA 94565-5123
Phone (925) 432-3318

3200 Kearney St
Fremont, CA 94538-2299
Phone (510) 490-1222

350 Hawthorne Ave
Oakland, CA 94609-3108
Phone (510) 655-4000

350 John Muir Pkwy
Brentwood, CA 94513-5183

3901 Lone Tree Way
Antioch, CA 94509-6200
Phone (650) 845-7649

795 El Camino Real
Palo Alto, CA 94301-2302
Phone (415) 600-1020

Hospital & facility affiliations

  • Sutter Delta Medical Center Hospital, Antioch, CA, CCN 050523
  • Alta Bates Summit Medical Center Hospital, Oakland, CA, CCN 050043
  • John Muir Medical Center - Concord Campus Hospital, Concord, CA, CCN 050496
  • John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180

Procedures performed for Medicare patients

ProcedureNumber of procedures
Coronary angioplasty and stenting1-10
Pacemaker insertion or repair1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A153515CAMDCardiovascular Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Sutter Bay Medical Foundation Current Accepting new patients
Sutter Bay Medical Foundation CurrentSince Oct 20, 2025 Accepting new patients
Sutter Bay Medical Foundation Cardiovascular Disease CurrentSince Oct 20, 2025 Accepting new patients
Pittsburg-Antioch Medical Group a Professional Corporation Cardiovascular Disease CurrentSince Nov 15, 2021 Accepting new patients
Sutter East Bay Medical Foundation Past Accepting new patients
Sutter East Bay Medical Foundation Cardiovascular Disease Past Accepting new patients
Sutter Delta Medical Center Past Accepting new patients
John Muir Health Past Accepting new patients

Locations

4053 Lone Tree Way
Ste 200
Antioch, CA 94531
Phone (925) 756-3400

18400 US Highway 18
Apple Valley, CA 92307
Phone (760) 810-7590

350 John Muir Pkwy
Ste 160
Brentwood, CA 94513
Phone (925) 204-1920

2400 Balfour Rd
Ste 306
Brentwood, CA 94513
Phone (925) 432-3318

1950 University Ave
Ste 160
East Palo Alto, CA 94303
Phone (650) 317-8100

3200 Kearney St
Fremont, CA 94538
Phone (510) 498-2800

1189 E Herndon Ave
Ste 103
Fresno, CA 93720
Phone (559) 450-7777

370 Distel Cir
Los Altos, CA 94022
Phone (650) 254-5200

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

101 Rowland Way
Ste 220
Novato, CA 94945
Phone (415) 878-7200

795 El Camino Real
Palo Alto, CA 94301
Phone (650) 324-1832

2220 Gladstone Dr
Ste 3
Pittsburg, CA 94565
Phone (925) 432-3318

1555 East St
Ste 200
Redding, CA 96001
Phone (530) 229-0911

151 N Sunrise Ave
Ste 1205
Roseville, CA 95661
Phone (916) 789-1505

3838 California St
Rm 410
San Francisco, CA 94118
Phone (415) 751-1847

123 S San Mateo Dr
San Mateo, CA 94401
Phone (650) 343-4200

3883 Airway Dr
Ste 220
Santa Rosa, CA 95403
Phone (707) 521-7750

10200 Trinity Pkwy
Ste 101
Stockton, CA 95219
Phone (209) 323-3488

550 S Green Valley Rd
Watsonville, CA 95076
Phone (831) 458-5865

Interoperability endpoints

  • Direct secure messaging: schitsaz603280@hisp.ehr.sutterhealth.org

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 4

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": "1333152000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761177600000",
    "number": "1821364084",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4053 LONE TREE WAY STE 200",
            "city": "ANTIOCH",
            "state": "CA",
            "postal_code": "945316210",
            "telephone_number": "925-776-7725",
            "fax_number": "510-506-7728"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4053 LONE TREE WAY STE 200",
            "city": "ANTIOCH",
            "state": "CA",
            "postal_code": "945316210",
            "telephone_number": "925-776-7725",
            "fax_number": "510-506-7728"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHITSAZ",
        "first_name": "SAM",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-03-31",
        "last_updated": "2025-10-23",
        "certification_date": "2025-10-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "CA",
            "license": "A153515",
            "primary": true
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "TX",
            "license": "R6761",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Antioch, CA

Sources for this page

Verify at the official NPI Registry.