NPIMap

Individual provider Active NPI

Umair Mahmood Siddiqui, MD

  • Gastroenterology Physician
  • Lake Jackson, TX
National Provider Identifier
1316113558
Registry record updated Jun 20, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
P6523 Issued in TX
Practice address
109 Parking Way St
Lake Jackson, TX 77566-5228
Phone
(979) 292-0033
NPI assigned
May 7, 2008
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 20, 2024

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X P6523 TX Primary

Addresses

Primary practice location

109 Parking Way St
Lake Jackson, TX 77566-5228

Mailing address

3838 N Braeswood Blvd
Apt 201
Houston, TX 77025-3000
Phone (979) 292-0033

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20140113000976 TX Practitioner - GastroenterologyPractitioner - Internal Medicine 6800039421 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
GastroenterologyAlso: Internal Medicine
Education
Other, 2004
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Digestive and Liver Center, PAGroup PAC ID 1355307299, 2 clinicians

Practice addresses (Care Compare)

109 Parking Way St
Lake Jackson, TX 77566-5228
Phone (979) 292-0033

1111 W Adoue St
Alvin, TX 77511-2718
Phone 28182414801594

12951 S Fwy
Houston, TX 77047-1923
Phone (979) 292-0033

720 Ave F N
Bay City, TX 77414-9573
Phone (979) 292-0033

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
75 of 100Reported as individual

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy127
Upper gastrointestinal (GI) endoscopy for acid reflux151

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
HHS exclusion list flag
Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
CHN Medical Support Systems CurrentSince Dec 30, 2025 Accepting new patients
Stephen F Austin Community Health Center,Inc CurrentSince Dec 30, 2025 Accepting new patients
Stephen F. Austin Community Health Center, Inc. CurrentSince Dec 30, 2025 Accepting new patients
Digestive & Liver Center, PA CurrentSince Nov 9, 2013 Accepting new patients
H-Town Surgery Center LLC Gastroenterology Current Accepting new patients
Texienne Physicians Medical Association PLLC CurrentSince Dec 26, 2025 Accepting new patients
Citizens Medical Center County of Victoria Past Accepting new patients

Locations

1111 W Adoue St
Alvin, TX 77511
Phone 2818241480 ext. 1594

720 Avenue F N
Bay City, TX 77414
Phone (979) 245-6660

12951 South Fwy
Houston, TX 77047

10851 Scarsdale Blvd
Ste 200
Houston, TX 77089
Phone (281) 481-4577

109 Parking Way St
Lake Jackson, TX 77566
Phone (979) 292-0033

2813 Smith Ranch Rd
Pearland, TX 77584
Phone (713) 436-8166

9303 Pinecroft Dr
Ste 280
The Woodlands, TX 77380
Phone (832) 813-5259

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 5

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": "1210118400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1718841600000",
    "number": "1316113558",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3838 N BRAESWOOD BLVD",
            "address_2": "APT 201",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770253000",
            "telephone_number": "979-292-0033"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "109 PARKING WAY ST",
            "city": "LAKE JACKSON",
            "state": "TX",
            "postal_code": "775665228",
            "telephone_number": "979-292-0033"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIDDIQUI",
        "first_name": "UMAIR",
        "middle_name": "MAHMOOD",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2008-05-07",
        "last_updated": "2024-06-20",
        "certification_date": "2024-06-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TX",
            "license": "P6523",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lake Jackson, TX

Sources for this page

Verify at the official NPI Registry.