Individual provider Active NPI

Saleen Gigi Mannil, AGNP-C

  • Gerontology Nurse Practitioner
  • Houston, TX
National Provider Identifier
1821659798
Registry record updated Jan 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gerontology Nurse PractitionerTaxonomy code 363LG0600X
License
AP140199 Issued in TX
Practice address
5815 Gulf Fwy Ste 100
Houston, TX 77023-5362
Phone
(713) 643-0012
Fax
(713) 643-5808
NPI assigned
Jun 21, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 12, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gerontology Nurse Practitioner 363LG0600X AP140199 TX Primary

Addresses

Primary practice location

5815 Gulf Fwy Ste 100
Houston, TX 77023-5362

Mailing address

11511 Shadow Creek Pkwy
Pearland, TX 77584-7298
Phone (713) 442-0000

Other practice location 1

520 Gulfgate Center Mall
Houston, TX 77087-3022
Phone (713) 442-3700

Other names 1

  • Mrs. Saleen Mathews Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210304000191 TX Practitioner - Nurse Practitioner 2163838871 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
University of Texas Medical Branch at Galveston, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Trumen Physician and Associates Post Acute PLLCGroup PAC ID 5496236788, 127 clinicians
Trumen Physicians and Associates PLLCGroup PAC ID 7618006883, 133 clinicians
Wellmed Medical Group PAGroup PAC ID 4880657386, 666 clinicians
Kelsey-Seybold Medical Group, PLLCGroup PAC ID 9739093527, 941 clinicians

Practice addresses (Care Compare)

2626 S Loop W
Suite 265
Houston, TX 77054-5636
Phone (713) 796-9955

448 Castroville Rd
San Antonio, TX 78207-5147
Phone (210) 434-1400

520 Gulfgate Ctr Mall
Houston, TX 77087-3022
Phone (713) 442-3700

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Trumen Physicians and Associates PLLC CurrentSince Mar 1, 2022 Accepting new patients
Kelsey-Seybold Medical Group, PLLC CurrentSince Jan 11, 2026 Accepting new patients
Wellmed Medical Group, P.a. CurrentSince Oct 3, 2022 Accepting new patients
Wellmed Medical Group, PA CurrentSince Oct 3, 2022 Accepting new patients

Locations

520 Gulfgate Center Mall
Houston, TX 77087
Phone (713) 442-3700

2727 W Holcombe Blvd
Houston, TX 77025
Phone (713) 790-9412

2626 S Loop W
Ste 265
Houston, TX 77054
Phone (713) 796-9955

7887 Cambridge St
Houston, TX 77054
Phone (713) 796-2777

5815 Gulf Fwy
Ste 100
Houston, TX 77023
Phone (713) 643-0012

201 Enterprise Ave
Ste 900
League City, TX 77573
Phone (713) 442-2826

7010 Highway 6
Missouri City, TX 77459
Phone (713) 442-4200

11511 Shadow Creek Pkwy
Pearland, TX 77584
Phone (713) 442-4997

2515 Business Center Dr
Pearland, TX 77584
Phone (713) 442-7200

6157 NW Loop 410
Ste 124
San Antonio, TX 78238
Phone (210) 523-1411

448 Castroville Rd
San Antonio, TX 78207
Phone (210) 434-1400

8637 Fredericksburg Rd
Ste 360
San Antonio, TX 78240
Phone (210) 304-3500

780 Clear Lake City Blvd
Bldg 2
Webster, TX 77598
Phone (281) 464-8988

Interoperability endpoints

  • Direct secure messaging: saleen.mannil@wellmed.eclinicaldirectplus.com

Organizations & group practices 5

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.

NPI Registry JSON

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

{
    "created_epoch": "1561075200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768176000000",
    "number": "1821659798",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11511 SHADOW CREEK PKWY",
            "city": "PEARLAND",
            "state": "TX",
            "postal_code": "775847298",
            "telephone_number": "713-442-0000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5815 GULF FWY STE 100",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770235362",
            "telephone_number": "713-643-0012",
            "fax_number": "713-643-5808"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "520 Gulfgate Center Mall",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770873022",
            "country_code": "US",
            "telephone_number": "713-442-3700",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MANNIL",
        "first_name": "SALEEN",
        "middle_name": "GIGI",
        "name_prefix": "Mrs.",
        "credential": "AGNP-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-06-21",
        "last_updated": "2026-01-12",
        "certification_date": "2026-01-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "TX",
            "license": "AP140199",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "SALEEN",
            "last_name": "MATHEWS",
            "prefix": "MRS.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.