Khai DO, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A42932 Issued in CA

Practice address

2021 E 4TH St Ste 104
Santa Ana, CA 92705-3912

Phone

(909) 621-3012

Fax

(909) 621-3015

NPI assigned

Aug 30, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

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

Specialty

Internal MedicineAlso: General Practice

Education

Louisiana State University School of Medicine in New Orleans, 1985

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Thien Phuoc Medical Center IncGroup PAC ID 6901296037, 2 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Compassionate Health Hospice, Inc Hospice, Westminster, CA, CCN 921526

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: khai.do@bolsamg.directbygreenway.com

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.

• Thien Phuoc Medical Center Inc

  • General Practice Physician
  • Westminster, CA
  • NPI 1730851221
  Medicare reassignment Care Compare group NPD
• Khai DO MD Inc.

  • Internal Medicine Physician
  • Montclair, CA
  • NPI 1124496021
  Medicare reassignment Authorized official
• Topcare Professional Medical Clinic, Inc

  • General Practice Physician
  • Westminster, CA
  • NPI 1417805615
  Medicare reassignment Authorized official
• Crimson Medical Laboratories Inc

  • Clinical Medical Laboratory
  • Pasadena, CA
  • NPI 1316782063
  NPD (past)
• Jason K Boutros M D Inc

  • Internal Medicine Physician
  • Pasadena, CA
  • NPI 1053532580
  NPD (past)
• Pomona Valley Hospital Medical Center

  • General Acute Care Hospital
  • Pomona, CA
  • NPI 1518067586
  NPD (past)
• San Antonio Regional Hospital

  • General Acute Care Hospital
  • Upland, CA
  • NPI 1780681189
  NPD (past)

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

• Compassionate Health Hospice Inc

  • Community Based Hospice Care Agency
  • Westminster, CA
  • NPI 1518398221
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1188432000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782172800000",
    "number": "1396939526",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9880 CENTRAL AVE",
            "city": "MONTCLAIR",
            "state": "CA",
            "postal_code": "917632817",
            "telephone_number": "909-621-3012",
            "fax_number": "909-621-3016"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2021 E 4TH ST STE 104",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927053912",
            "telephone_number": "909-621-3012",
            "fax_number": "909-621-3015"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DO",
        "first_name": "KHAI",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-08-30",
        "last_updated": "2026-06-23",
        "certification_date": "2026-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A42932",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE NUMBER",
            "identifier": "A42932",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Dona DO, RN
• Dylan N DO, D.D.S.
• Huyen DO
• Jonathan Hoang DO, BEHAVIORAL THERAPIST
• Kent Nam DO, DMD
• Loc Quang DO, DDS
• Madeline Phuong DO, MSW
• Mai Uyen Thi DO, FNP-C
• Minh Canh DO, M.D.
• Nhan T DO, O.D.

• Internal Medicine Physician in Santa Ana, CA
• Providers in Santa Ana, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 23, 2026; 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.

Verify at the official NPI Registry.