Lukejohn Welch Day, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

A93534 Issued in CA

Practice address

505 Parnassus Ave
San Francisco, CA 94143-2204

Phone

(415) 377-2176

NPI assigned

Oct 7, 2008

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

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

GastroenterologyAlso: Internal Medicine

Education

Stanford University School of Medicine, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

UCSF Medical Group Business ServicesGroup PAC ID 3779497870, 1,533 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

87.01 of 100Reported as group

Quality

86.78

Improvement activities

40

Cost

70.46

Merit-based Incentive Payment System (MIPS)

Final score

97.28 of 100Reported as group

Quality

89.92

Promoting interoperability

100

Improvement activities

40

Cost

78.23

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lday15233@direct-ucsfmedicalcenter.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.

• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104
  Medicare reassignment Care Compare group
• City & County of San Francisco

  • Clinical Medical Laboratory
  • San Francisco, CA
  • NPI 1982737524
  Medicare reassignment NPD
• University of California San Francisco

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment NPD
• University of California SFGH Medical Group

  • Gastroenterology Physician
  • San Francisco, CA
  • NPI 1578538609
  Medicare reassignment NPD
• Regents of the University of California

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1760552343
  Medicare reassignment
• City & County of San Francisco

  • Community Health/Public Health Clinical Nurse Specialist
  • San Francisco, CA
  • NPI 1609041060
  NPD
• City and County of San Francisco

  • Methadone Clinic
  • San Francisco, CA
  • NPI 1578787925
  NPD
• Regents of the University of California

  • Rheumatology Physician
  • San Francisco, CA
  • NPI 1881763597
  NPD (past)
• University of California San Francisco

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • San Francisco, CA
  • NPI 1992818256
  NPD (past)
• University of California San Francisco Medical Center

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1144325440
  NPD (past)

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

{
    "created_epoch": "1223337600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1223337600000",
    "number": "1669623773",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "334 SANCHEZ ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941141616",
            "telephone_number": "415-377-2176"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "505 PARNASSUS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432204",
            "telephone_number": "415-377-2176"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DAY",
        "first_name": "LUKEJOHN",
        "middle_name": "WELCH",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2008-10-07",
        "last_updated": "2008-10-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "A93534",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Angela-Rose Jessie Day, PA-C
• Carolyn Day
• Danielle Hanalei Day, RN
• Joseph Day, MFT
• Kirsten Yvette Day, MD
• Mitzi-Ann M Day, L.I.C.S.W.
• Susan Day, MD
• Yesenia Ayana Day
• Nirmaan Kaur Dayal, M.D.
• Kylie Dayan, LCSW

• Gastroenterology Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Gastroenterology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 2008; 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.