Pasadena Nephrology Corporation a Medical Group

Primary specialty

Nephrology PhysicianTaxonomy code 207RN0300X

Legal business name

PASADENA NEPHROLOGY CORPORATION A MEDICAL GROUP

Practice address

50 Alessandro PL Ste 250
Pasadena, CA 91105-3149

Phone

(626) 577-1675

Fax

(626) 577-9115

NPI assigned

Oct 19, 2006

Organization subpart

No

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

Authorized official

Name

Michael S Linsey, M.D.NPI 1841215217

Title

Partner

Phone

(626) 577-1675

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPDPlans: Blue Shield 65 Plus (HMO) (H0504-015-000, H0504); Blue Shield 65 Plus (HMO) (H0504-039-000, H0504); Blue Shield 65 Plus Plan 2 (HMO) (H0504-021-000, H0504); Blue Shield Inspire (HMO) (H0504-041-000, H0504); Blue Shield 65 Plus (HMO) (H0504-038-000, H0504); Blue Shield Inspire (HMO) (H0504-047-000, H0504); Blue Shield 65 Plus (HMO) (H0504-026-000, H0504); Blue Shield Advantage (HMO) (H0504-050-000, H0504); Blue Shield AdvantageOptimum Plan (HMO) (H5928-004-000, H5928); Blue Shield Inspire (HMO) (H0504-043-000, H0504)…

Practitioners 6

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Michael S. Linsey, M.D.

  • Nephrology Physician
  • Pasadena, CA
  • NPI 1841215217
  Medicare reassignment Care Compare group NPD Authorized official
• Matthew Kim, DO

  • Nephrology Physician
  • Pasadena, CA
  • NPI 1700319837
  Medicare reassignment Care Compare group NPD
• Ann Moore, MD

  • Nephrology Physician
  • Pasadena, CA
  • NPI 1750506630
  Medicare reassignment Care Compare group NPD
• Ka-Lok E. Tse, M.D.

  • Nephrology Physician
  • Pasadena, CA
  • NPI 1093730491
  Medicare reassignment Care Compare group NPD
• Allen Chao

  • Nephrology Physician
  • Pasadena, CA
  • NPI 1952765034
  Care Compare group NPD (past)
• Ellen Reiko Matsumoto, OD

  • Ophthalmology Physician
  • Los Angeles, CA
  • NPI 1558452441
  NPD

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

{
    "created_epoch": "1161216000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1776038400000",
    "number": "1962584904",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1390",
            "city": "SOUTH PASADENA",
            "state": "CA",
            "postal_code": "910311390",
            "telephone_number": "626-577-1675",
            "fax_number": "626-577-9115"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "50 ALESSANDRO PL STE 250",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911053149",
            "telephone_number": "626-577-1675",
            "fax_number": "626-577-9115"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PASADENA NEPHROLOGY CORPORATION A MEDICAL GROUP",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-10-19",
        "last_updated": "2026-04-13",
        "certification_date": "2026-04-13",
        "status": "A",
        "authorized_official_last_name": "LINSEY",
        "authorized_official_first_name": "MICHAEL",
        "authorized_official_middle_name": "S",
        "authorized_official_title_or_position": "PARTNER",
        "authorized_official_telephone_number": "626-577-1675",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Nephrology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "GR0095140",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Nephrology Physician in Pasadena, CA
• Providers in Pasadena, CA by specialty
• Nephrology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.