Individual provider Active NPI

Lawrence Leung, MD

  • Gastroenterology Physician
  • Ann Arbor, MI
National Provider Identifier
1275196370
Registry record updated Jun 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
4301514537 Issued in MI
Practice address
1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone
(734) 936-4000
NPI assigned
Apr 15, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 30, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Gastroenterology Physician 207RG0100X 4301514537 MI Primary

Addresses

Primary practice location

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000

Mailing address

3621 S State St
Ann Arbor, MI 48108-1633
Phone (734) 647-5299

Other practice location 1

2425 Geary Blvd
San Francisco, CA 94115-3358
Phone (650) 243-7019

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, MI2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20250130002053 CA Practitioner - Internal MedicinePractitioner - Gastroenterology 4587072053 Reassigns benefits to 1 organization
I20250915000947 MI Practitioner - GastroenterologyPractitioner - Internal Medicine 4587072053 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
GastroenterologyAlso: Internal Medicine
Education
University of Vermont College of Medicine, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Regents of the University of MichiganGroup PAC ID 3779496856, 3,344 clinicians

Practice addresses (Care Compare)

7500 Challis Rd
Brighton, MI 48116-9416
Phone (810) 263-4000

Hospital & facility affiliations

  • University of Michigan Health System Hospital, Ann Arbor, MI, CCN 230046

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Upper gastrointestinal (GI) endoscopy for acid reflux23

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
4301514537MIMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Regents of the University of Michigan CurrentSince Jul 1, 2025 Accepting new patients
Regents of the University of Michigan Gastroenterology CurrentSince Jul 1, 2025 Accepting new patients
Permanente Medical Group Inc Current Accepting new patients
Permanente Medical Group, Inc CurrentSince Nov 9, 2024 Accepting new patients
Permanente Medical Group Inc CurrentSince Nov 9, 2024 Accepting new patients
Regents of the University of Michigan Current Accepting new patients
Regents of the University of Michigan Past Accepting new patients

Locations

750 Auburn Ravine Rd
Auburn, CA 95603
Phone (530) 823-6131

4753 W Shaw Ave
Ste 101
Fresno, CA 93722
Phone (559) 277-8738

900 N Douty St
Hanford, CA 93230
Phone (559) 587-9014

101 Monroe St
Petaluma, CA 94954
Phone (707) 763-4109

5820 Owens Dr
Bldg E
Pleasanton, CA 94588
Phone (925) 737-3785

1150 Veterans Blvd
Redwood City, CA 94063
Phone (650) 299-2015

901 Nevin Ave
Richmond, CA 94801
Phone (510) 307-1500

930 W Main St
Ripon, CA 95366
Phone (209) 599-4221

501 J St
Sacramento, CA 95814
Phone (916) 497-3000

2425 Geary Blvd
San Francisco, CA 94115
Phone (415) 833-2200

2200 Ofarrell St
San Francisco, CA 94115
Phone (415) 202-2000

2350 Geary Blvd
San Francisco, CA 94115
Phone (415) 833-3800

710 Lawrence Expy
Santa Clara, CA 95051
Phone (408) 236-6400

5615 Scotts Valley Dr
Scotts Valley, CA 95066
Phone (831) 430-2700

7373 West Ln
Stockton, CA 95210
Phone (209) 476-2000

975 Sereno Dr
Vallejo, CA 94589
Phone (707) 651-1000

320 N Crawford St
Willows, CA 95988
Phone (530) 934-2834

3621 S State St
Ann Arbor, MI 48108
Phone (734) 647-5229

1500 E Medical Center Dr
#D
Ann Arbor, MI 48109
Phone (734) 936-5823

1500 E Medical Center Dr
Ann Arbor, MI 48109
Phone (734) 936-4280

8001 Challis Rd
Brighton, MI 48116
Phone (810) 227-9510

7500 Challis Rd
Brighton, MI 48116
Phone (734) 764-4190

Organizations & group practices 7

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1555286400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751241600000",
    "number": "1275196370",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3621 S STATE ST",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481081633",
            "telephone_number": "734-647-5299"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E MEDICAL CENTER DR",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095000",
            "telephone_number": "734-936-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2425 Geary Blvd",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941153358",
            "country_code": "US",
            "telephone_number": "650-243-7019",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEUNG",
        "first_name": "LAWRENCE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-04-15",
        "last_updated": "2025-06-30",
        "certification_date": "2025-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MI",
            "license": "4301514537",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ann Arbor, MI

Sources for this page

Verify at the official NPI Registry.