Michael Krosin, MD

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

A96292 Issued in CA

Practice address

19845 Lake Chabot Rd Ste 200
Castro Valley, CA 94546-4055

Phone

(510) 750-1967

Fax

(844) 718-0067

NPI assigned

Mar 30, 2009

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

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

Orthopedic Surgery

Education

University of Missouri, Columbia School of Medicine, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Alameda Health SystemGroup PAC ID 3779494521, 597 clinicians

Bass Medical GroupGroup PAC ID 9032111281, 292 clinicians

Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Accentcare Home Health of California, Inc Home health agency, San Ramon, CA, CCN 057517
• Silverline Staff Home Health Home health agency, Fremont, CA, CCN 559548
• Eden Medical Center Hospital, Castro Valley, CA, CCN 050488
• Highland Hospital Hospital, Oakland, CA, CCN 050320

Merit-based Incentive Payment System (MIPS)

Final score

95.17 of 100Reported as group

Quality

86.93

Promoting interoperability

100

Improvement activities

40

Cost

72.6

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mkrosin11677@alamedahs.direct-ci.com
• Direct secure messaging: mkrosin138377@ehr.johnmuirhealth.com
• Direct secure messaging: mkrosin242015@hisp.ehr.sutterhealth.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.

• Alameda Health System

  • Surgery Physician
  • Oakland, CA
  • NPI 1740332931
  Medicare reassignment Care Compare group NPD
• Bass Medical Group

  • Obstetrics & Gynecology Physician
  • Walnut Creek, CA
  • NPI 1174253405

  Orthopaedic Surgery

  Medicare reassignment Care Compare group NPD
• Sutter Bay Medical Foundation

  • Multi-Specialty Clinic/Center
  • Palo Alto, CA
  • NPI 1013950807
  Medicare reassignment Care Compare group
• Alameda Health System

  • Federally Qualified Health Center (FQHC)
  • Oakland, CA
  • NPI 1932300738
  NPD
• Bass Medical Group

  • Specialist
  • Walnut Creek, CA
  • NPI 1154401941
  NPD
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • San Ramon, CA
  • NPI 1467329904
  NPD
• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1083815872
  NPD (past)
• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1396764353
  NPD (past)
• Bass Medical Group

  • Pain Medicine Physician
  • Visalia, CA
  • NPI 1326409343
  NPD (past)
• Eden Medical Center/San Leandro Hospital Campus

  • Rehabilitation Hospital Unit
  • San Leandro, CA
  • NPI 1679523633
  NPD (past)
• Orthopaedics-Indianapolis, Inc

  • Orthopaedic Surgery Physician
  • Indianapolis, IN
  • NPI 1073622015
  NPD (past)

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

• Accentcare Home Health of California, Inc.

  • Home Health Agency
  • San Ramon, CA
  • NPI 1972559961
  Care Compare affiliation
• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1083815872
  Care Compare affiliation
• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1396764353
  Care Compare affiliation
• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1700087590
  Care Compare affiliation
• Silverline Staff Inc

  • Home Health Agency
  • Fremont, CA
  • NPI 1902371446
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Castro Valley, CA
  • NPI 1063812907
  Care Compare affiliation

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

{
    "created_epoch": "1238371200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778112000000",
    "number": "1578705000",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19845 LAKE CHABOT RD STE 200",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945464055",
            "telephone_number": "510-750-1967",
            "fax_number": "844-718-0067"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19845 LAKE CHABOT RD STE 200",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945464055",
            "telephone_number": "510-750-1967",
            "fax_number": "844-718-0067"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "350 Hawthorne Ave",
            "address_purpose": "LOCATION",
            "city": "Oakland",
            "state": "CA",
            "postal_code": "946093108",
            "country_code": "US",
            "telephone_number": "510-204-4444",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KROSIN",
        "first_name": "MICHAEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-03-30",
        "last_updated": "2026-05-07",
        "certification_date": "2026-05-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "IN",
            "license": "01066586A",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "CA",
            "license": "A96292",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kong Du
• Raymond L. Kong, PHARM D.
• Michael John Koury, PT
• Kathleen Jo Kretzmer, LCSW
• Michael B. Krinsky, M.D.
• Ted Krzywicki, D.D.S.
• Christine Kucher, M.A., CCC-SLP
• Yvette Yadira Kumar, LMFT
• Liang Yu Kung
• Ayumi Kurtz, MFT

• Orthopaedic Surgery Physician in Castro Valley, CA
• Providers in Castro Valley, CA by specialty
• Orthopaedic Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 7, 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.