CHI-Whei Lin, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A55435 Issued in CA

Practice address

23521 Paseo de Valencia
Suite 310
Laguna Hills, CA 92653-3107

Phone

(949) 716-4555

Fax

(949) 716-4437

NPI assigned

Mar 7, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

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 Medicine

Education

Creighton University School of Medicine, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Hospital & facility affiliations

• Acacia HH&P of Southern California, LLC Home health agency, Irvine, CA, CCN 559093
• Memorialcare Saddleback Medical Center Hospital, Laguna Hills, CA, CCN 050603

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: clinmd15235@direct.memorialcare.org

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.

• CHI-Whei Lin, MD, Inc.

  • Internal Medicine Physician
  • Laguna Hills, CA
  • NPI 1912328865
  Medicare reassignment NPD Authorized official
• Saddleback Medical Group Inc

  • Gastroenterology Physician
  • Laguna Hills, CA
  • NPI 1386605822
  Medicare reassignment NPD
• Mission Hospital Regional Medical Center

  • Rehabilitation Hospital
  • Mission Viejo, CA
  • NPI 1003956913
  NPD (past)
• Saddleback Memorial Medical Center

  • Rehabilitation Hospital Unit
  • Laguna Hills, CA
  • NPI 1114967114
  NPD (past)

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

• Acacia HH&P of Southern California, LLC

  • Home Health Agency
  • Fountain Valley, CA
  • NPI 1285096198
  Care Compare affiliation
• Saddleback Memorial Medical Center

  • General Acute Care Hospital
  • Laguna Hills, CA
  • NPI 1275576381
  Care Compare affiliation

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

{
    "created_epoch": "1173225600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778025600000",
    "number": "1114057254",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "23521 PASEO DE VALENCIA",
            "address_2": "SUITE 310",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926533107",
            "telephone_number": "949-716-4555",
            "fax_number": "949-716-4437"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23521 PASEO DE VALENCIA",
            "address_2": "SUITE 310",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926533107",
            "telephone_number": "949-716-4555",
            "fax_number": "949-716-4437"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LIN",
        "first_name": "CHI-WHEI",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-03-07",
        "last_updated": "2026-05-06",
        "certification_date": "2026-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A55435",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A55435",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "A55435P47",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Lido Chen, M.D. Inc
• Sherrill S Lief, MFT
• Life Care Guest Home LLC
• Life in Progress, Inc.
• Alyson Lin, O.D.
• Chun Yen Lin, MS, OTR/L
• Amy Jo Lindley, LMT
• Larry James Lindley, P.T.
• Ingrid Linker, PTA
• Lisa Majer DO a Professional Corporation

• Internal Medicine Physician in Laguna Hills, CA
• Providers in Laguna Hills, 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 May 6, 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.