Isaac Wei Cheng, PHARMD

Primary specialty

Pharmacist Clinician (PhC)/ Clinical Pharmacy SpecialistTaxonomy code 1835P0018X

License

66951 Issued in CA

Practice address

4315 Mission Blvd
San Diego, CA 92109-3917

Phone

(858) 273-2108

Fax

(858) 273-5542

NPI assigned

Feb 26, 2013

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Pharmacy

State licenses

Practice roles

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.

• Ralphs Grocery Company

  • Community/Retail Pharmacy
  • San Diego, CA
  • NPI 1023033628
  NPD (past)
• Ralphs Grocery Company

  • Community/Retail Pharmacy
  • Pacoima, CA
  • NPI 1982772711
  NPD (past)
• Vons Companies Inc

  • Community/Retail Pharmacy
  • San Diego, CA
  • NPI 1154350106
  NPD (past)
• Vons Companies Inc

  • Community/Retail Pharmacy
  • Santa Monica, CA
  • NPI 1720879919
  NPD (past)

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

{
    "created_epoch": "1361836800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779840000000",
    "number": "1851631915",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4315 MISSION BLVD",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921093917",
            "telephone_number": "858-273-2108"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4315 MISSION BLVD",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921093917",
            "telephone_number": "858-273-2108",
            "fax_number": "858-273-5542"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHENG",
        "first_name": "ISAAC",
        "middle_name": "WEI",
        "credential": "PHARMD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2013-02-26",
        "last_updated": "2026-05-27",
        "certification_date": "2026-05-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1835P0018X",
            "taxonomy_group": "",
            "desc": "Pharmacist, Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist",
            "state": "CA",
            "license": "66951",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David L Cheng Jr., OD
• Eulalia Cheng, MD
• George Zhi Cheng, MD PHD
• Gordon Chih-Jen Cheng, M.D.
• Isaac Cheng, PSYD
• Karen Yik Ting Cheng, MD
• Lorraine Cheng, M.A.
• Melanie Tiu Cheng, PT, DPT
• Patty L Cheng, O.D.
• Paul C Cheng, M.D.

• Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in San Diego, CA
• Providers in San Diego, CA by specialty
• Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 27, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.