Ran S Kim, M.D.

Primary specialty

Colon & Rectal Surgery PhysicianTaxonomy code 208C00000X

License

G75587 Issued in CA

Practice address

1399 Ygnacio Valley Rd Ste 11D
Walnut Creek, CA 94598-2874

Phone

(925) 430-5613

Fax

(510) 340-5462

NPI assigned

Nov 1, 2006

Last updated

Apr 22, 2025By the provider in NPPES

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

General SurgeryAlso: Colorectal Surgery (Proctology)

Education

Medical College of Pennsylvania, 1990

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Bass Medical GroupGroup PAC ID 9032111281, 292 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mary's Help Home Health Services, Inc Home health agency, Vallejo, CA, CCN 059143
• John Muir Medical Center - Concord Campus Hospital, Concord, CA, CCN 050496
• John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180
• Sutter Delta Medical Center Hospital, Antioch, CA, CCN 050523

Merit-based Incentive Payment System (MIPS)

Final score

90.98 of 100Reported as apm

Quality

80.39

Promoting interoperability

100

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: rkim11242@ehr.johnmuirhealth.com
• Direct secure messaging: rkim226809@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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Andes Medical Care Apc

  • Surgery Physician
  • Walnut Creek, CA
  • NPI 1992388003
  Medicare reassignment NPD Authorized official
• Bass Medical Group

  • Obstetrics & Gynecology Physician
  • Walnut Creek, CA
  • NPI 1174253405
  Medicare reassignment Care Compare group NPD
• Health Connect Wound Solutions Professional Corporation

  dba Health Connect Wound Solutions

  • Geriatric Medicine (Family Medicine) Physician
  • Burlingame, CA
  • NPI 1720962699

  Surgery

  Medicare reassignment NPD Authorized official
• U Wellness Wound Care Apc

  • Surgery Physician
  • Walnut Creek, CA
  • NPI 1538966643
  Medicare reassignment NPD Authorized official
• John Muir Trauma Physicians Billing Service

  • Hospitalist Physician
  • Walnut Creek, CA
  • NPI 1093864837
  Medicare reassignment NPD
• Sun Healthcare and Surgery Group Inc

  dba Xingbo P Sun

  • Podiatrist
  • Antioch, CA
  • NPI 1609328129
  Medicare reassignment NPD
• Ketamine Infusion Associates, Inc.

  • Clinic/Center
  • Concord, CA
  • NPI 1841886488
  NPD Authorized official
• Ran S. Kim, MD, Inc

  • Surgery Physician
  • Walnut Creek, CA
  • NPI 1982516530
  Authorized official Same address or phone
• Bass Medical Group

  • Orthopaedic Surgery Physician
  • San Ramon, CA
  • NPI 1467329904
  NPD
• Bay Area Surgical Specialists Inc a Medical Corporation

  • Magnetic Resonance Imaging (MRI) Clinic/Center
  • Walnut Creek, CA
  • NPI 1023501905
  NPD
• John Muir Trauma Physicians Billing Service

  • Trauma Surgery Physician
  • Walnut Creek, CA
  • NPI 1962551861
  NPD
• Bass Medical Group

  • Specialist
  • Walnut Creek, CA
  • NPI 1154401941
  NPD (past)

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

• John Muir Health

  dba John Muir Health, Walnut Creek Medical Center

  • General Acute Care Hospital
  • Walnut Creek, CA
  • NPI 1740215219
  Care Compare affiliation
• John Muir Health

  dba John Muir Health Medical Center, Concord Campus

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  Care Compare affiliation
• Mary's Help Home Health Services, Inc.

  • Home Health Agency
  • Vallejo, CA
  • NPI 1205929593
  Care Compare affiliation
• Sutter Bay Hospitals

  dba Sutter Delta Medical Center

  • General Acute Care Hospital
  • Antioch, CA
  • NPI 1467808659
  Care Compare affiliation

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

{
    "created_epoch": "1162339200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1745280000000",
    "number": "1437237005",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1399 YGNACIO VALLEY RD STE 11D",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982874",
            "telephone_number": "925-430-5613",
            "fax_number": "510-340-5462"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1399 YGNACIO VALLEY RD STE 11D",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982874",
            "telephone_number": "925-430-5613",
            "fax_number": "510-340-5462"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KIM",
        "first_name": "RAN",
        "middle_name": "S",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-01",
        "last_updated": "2025-04-22",
        "certification_date": "2025-04-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "G75587",
            "primary": false
        },
        {
            "code": "208C00000X",
            "taxonomy_group": "",
            "desc": "Colon & Rectal Surgery",
            "state": "CA",
            "license": "G75587",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lisa Taehyung Kim, DO
• Lucia C Kim, MD, MPH
• Michelle Kim
• Paul Kim
• Paul Han Soo Kim, M.D.
• Regina J Kim, PHARM.D.
• Robert Y Kim, M.D.
• Soomie Kim
• Sung Y. Kim, MD
• Taeho Kim, PA

• Colon & Rectal Surgery Physician in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Colon & Rectal Surgery Physician in California

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