Karan J Singh, M.D.

Primary specialty

Urology PhysicianTaxonomy code 208800000X

License

G78227 Issued in CA

Practice address

23961 Calle de la Magdalena Ste 500
Laguna Hills, CA 92653-7622

Phone

(949) 855-1101

Fax

(949) 289-9171

NPI assigned

Apr 19, 2006

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 2

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

Urology

Education

University of California, Geffen School of Medicine, 1992

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Orange County Urology Associates Inc a Medical GroupGroup PAC ID 6002713146, 18 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence Mission Hospital Hospital, Mission Viejo, CA, CCN 050567
• Hoag Memorial Hospital Presbyterian Hospital, Newport Beach, CA, CCN 050224
• Memorialcare Saddleback Medical Center Hospital, Laguna Hills, CA, CCN 050603

Merit-based Incentive Payment System (MIPS)

Final score

92.39 of 100Reported as group

Quality

84.79

Improvement activities

40

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: karansingh@ocua.medalliesdirect.net

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.

• Orange County Urology Associates, Inc. a Medical Group

  • Urology Physician
  • Laguna Hills, CA
  • NPI 1215992748

  Specialist

  Medicare reassignment Care Compare group NPD
• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  NPD (past)
• Los Alamitos Medical Center, Inc.

  • Psychiatric Hospital Unit
  • Los Alamitos, CA
  • NPI 1497780084
  NPD (past)
• 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.

• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  Care Compare affiliation
• Mission Hospital Regional Medical Center

  • General Acute Care Hospital
  • Mission Viejo, CA
  • NPI 1912108002
  Care Compare affiliation
• Mission Hospital Regional Medical Center

  • General Acute Care Hospital
  • Mission Viejo, CA
  • NPI 1992752315
  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": "1145404800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761091200000",
    "number": "1700841970",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "23961 CALLE DE LA MAGDALENA STE 500",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926537622",
            "telephone_number": "949-855-1101",
            "fax_number": "949-289-9171"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23961 CALLE DE LA MAGDALENA STE 500",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926537622",
            "telephone_number": "949-855-1101",
            "fax_number": "949-289-9171"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SINGH",
        "first_name": "KARAN",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-19",
        "last_updated": "2025-10-22",
        "certification_date": "2025-10-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "CA",
            "license": "G78227",
            "primary": true
        },
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "CA",
            "license": "G78227",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE GROUP ID",
            "identifier": "W16536",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100339841",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Vincent Silva, DPT
• Akil Peter Simon, M.D.
• Sims in-Home Physical Therapy
• John Sims, P.T.
• Gregory Garabed Simsarian, M.D
• Curtis W Siu, MD
• Kyle Sivcovich, PPSC
• Robert Barry Sklar, M.D.
• Gail S Skoropad, DPT
• Karen P. Skvarna, O.D.

• Urology Physician in Laguna Hills, CA
• Providers in Laguna Hills, CA by specialty
• Urology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 22, 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.

Verify at the official NPI Registry.