Individual provider Active NPI

Abdelnaser Elkhalili, MD

  • Rheumatology Physician
  • Webster, TX
National Provider Identifier
1316935836
Registry record updated Feb 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Rheumatology PhysicianTaxonomy code 207RR0500X
License
L8678 Issued in TX
Practice address
905 W Medical Center Blvd Ste 305
Webster, TX 77598-4009
Phone
(281) 724-8184
NPI assigned
Oct 10, 2005
Last updated
Feb 19, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 19, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Rheumatology Physician 207RR0500X L8678 TX Primary
Internal Medicine Physician 207R00000X L8678 TX

Addresses

Primary practice location

905 W Medical Center Blvd Ste 305
Webster, TX 77598-4009

Mailing address

PO Box 58538
Webster, TX 77598-8538
Phone (281) 724-8184

Other practice location 1

5010 Crenshaw Rd Ste 130
Pasadena, TX 77505-4615
Phone (832) 464-8088

Other practice location 2

11914 Astoria Blvd Ste 125
Houston, TX 77089-6073
Phone (832) 554-1005

Other practice location 3

9645 Barker Cypress Rd Ste 100
Cypress, TX 77433-5292
Phone (346) 209-3581

Other practice location 4

500 N Kobayashi
Suite A
Webster, TX 77598-4820
Phone (281) 724-1860

Other practice location 5

130 Medical Center Pkwy Ste 5
Huntsville, TX 77340-4943
Phone (936) 215-2442

Other practice location 6

17450 St Lukes Way Ste 250
Conroe, TX 77384-8045
Phone (346) 230-2442

Other practice location 7

4615 Southwest Fwy Ste 1000
Houston, TX 77027-7108
Phone (281) 407-6943

Other practice location 8

116 Medical Park Ln Ste B
Huntsville, TX 77340-4978
Phone (936) 215-6418

Other practice location 9

905 W Medical Center Blvd Ste 306
Webster, TX 77598-4009
Phone (281) 724-8332

Other practice location 10

14100 Southwest Fwy Ste 500
Sugar Land, TX 77478-3483
Phone (346) 488-9189

Other practice location 11

500 N Kobayashi Ste C
Webster, TX 77598-4722
Phone (281) 816-3092

Other practice location 12

600 N Kobayashi Ste 309
Webster, TX 77598-4841
Phone (281) 724-8332

Other practice location 13

600 N Kobayashi Ste 110
Webster, TX 77598-4841
Phone (281) 338-1701

Other practice location 14

600 N Kobayashi Ste 310
Webster, TX 77598-4841
Phone (281) 724-8184

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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20101020000904 TX Practitioner - RheumatologyPractitioner - Internal Medicine 0446227169 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
RheumatologyAlso: Internal Medicine
Education
Other, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
CLS Health PLLCGroup PAC ID 7214962117, 176 clinicians

Practice addresses (Care Compare)

600 N Kobayashi
Suite 310
Webster, TX 77598-4841
Phone (281) 724-1860

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
75 of 100Reported as individual

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
L8678TXMDRheumatology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
CLS Health PLLC Internal Medicine CurrentSince Jul 1, 2010 Accepting new patients
Clear Lake Oncology PLLC CurrentSince Jul 1, 2021 Accepting new patients
Clear Lake Podiatry PLLC PastSince Feb 25, 2016 Accepting new patients
Delta Physician Practices Past Accepting new patients
Delta Medical Group Rheumatology Past Accepting new patients
CLS Health PLLC PastSince Mar 11, 2025 Accepting new patients

Locations

9645 Barker Cypress Rd
Ste 100
Cypress, TX 77433
Phone (281) 256-8033

4615 Southwest Fwy
Ste 1000
Houston, TX 77027
Phone (281) 407-6943

11914 Astoria Blvd
Ste 125
Houston, TX 77089
Phone (281) 482-5300

116 Medical Park Ln
Ste B
Huntsville, TX 77340
Phone (936) 215-6418

130 Medical Center Pkwy
Ste 5
Huntsville, TX 77340
Phone (936) 215-6418

5010 Crenshaw Rd
Ste 130
Pasadena, TX 77505
Phone (713) 299-7374

3411 Broadway St
Pearland, TX 77581
Phone (281) 485-0505

6514 Highway 90A
Ste 100
Sugar Land, TX 77498
Phone (281) 313-0100

14100 Southwest Fwy
Ste 500
Sugar Land, TX 77478
Phone (281) 972-4972

6801 Emmett F Lowry Expy
Texas City, TX 77591
Phone (409) 938-5095

17450 St Lukes Way
Ste 250
The Woodlands, TX 77384
Phone (346) 230-2442

905 W Medical Center Blvd
Ste 305
Webster, TX 77598
Phone (281) 724-8184

905 W Medical Center Blvd
#305
Webster, TX 77598

500 N Kobayashi
Ste A
Webster, TX 77598
Phone (281) 724-7341

905 W Medical Center Blvd
Ste 306
Webster, TX 77598
Phone (281) 724-8332

500 N Kobayashi
Ste C
Webster, TX 77598
Phone (281) 747-9313

600 N Kobayashi
Ste 309
Webster, TX 77598
Phone (281) 724-8332

600 N Kobayashi
Ste 310
Webster, TX 77598
Phone (281) 724-8335

500 W Medical Center Blvd
Webster, TX 77598
Phone (713) 447-4650

709 W Medical Center Blvd
Webster, TX 77598
Phone (281) 316-8070

600 N Kobayashi
Ste 110
Webster, TX 77598
Phone (281) 338-1701

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/CFFDBA
  • Direct secure messaging: abdelnaser.elkhalili@cls.eclinicaldirectplus.com

Organizations & group practices 6

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.

Hospital & facility affiliations 10

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": "1128902400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771459200000",
    "number": "1316935836",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 58538",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775988538",
            "telephone_number": "281-724-8184",
            "fax_number": "281-336-1674"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "905 W MEDICAL CENTER BLVD STE 305",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775984009",
            "telephone_number": "281-724-8184"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5010 Crenshaw Rd Ste 130",
            "address_purpose": "LOCATION",
            "city": "Pasadena",
            "state": "TX",
            "postal_code": "775054615",
            "country_code": "US",
            "telephone_number": "832-464-8088",
            "fax_number": "832-464-1476",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "11914 Astoria Blvd Ste 125",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770896073",
            "country_code": "US",
            "telephone_number": "832-554-1005",
            "fax_number": "832-742-0455",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9645 Barker Cypress Rd Ste 100",
            "address_purpose": "LOCATION",
            "city": "Cypress",
            "state": "TX",
            "postal_code": "774335292",
            "country_code": "US",
            "telephone_number": "346-209-3581",
            "fax_number": "346-207-0885",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 N Kobayashi",
            "address_2": "Suite A",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984820",
            "country_code": "US",
            "telephone_number": "281-724-1860",
            "fax_number": "281-724-1861",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "130 Medical Center Pkwy Ste 5",
            "address_purpose": "LOCATION",
            "city": "Huntsville",
            "state": "TX",
            "postal_code": "773404943",
            "country_code": "US",
            "telephone_number": "936-215-2442",
            "fax_number": "936-283-4788",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "17450 St Lukes Way Ste 250",
            "address_purpose": "LOCATION",
            "city": "Conroe",
            "state": "TX",
            "postal_code": "773848045",
            "country_code": "US",
            "telephone_number": "346-230-2442",
            "fax_number": "346-207-0890",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4615 Southwest Fwy Ste 1000",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770277108",
            "country_code": "US",
            "telephone_number": "281-407-6943",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "116 Medical Park Ln Ste B",
            "address_purpose": "LOCATION",
            "city": "Huntsville",
            "state": "TX",
            "postal_code": "773404978",
            "country_code": "US",
            "telephone_number": "936-215-6418",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "905 W Medical Center Blvd Ste 306",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984009",
            "country_code": "US",
            "telephone_number": "281-724-8332",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "14100 Southwest Fwy Ste 500",
            "address_purpose": "LOCATION",
            "city": "Sugar Land",
            "state": "TX",
            "postal_code": "774783483",
            "country_code": "US",
            "telephone_number": "346-488-9189",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 N Kobayashi Ste C",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984722",
            "country_code": "US",
            "telephone_number": "281-816-3092",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 N Kobayashi Ste 309",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984841",
            "country_code": "US",
            "telephone_number": "281-724-8332",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 N Kobayashi Ste 110",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984841",
            "country_code": "US",
            "telephone_number": "281-338-1701",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 N Kobayashi Ste 310",
            "address_purpose": "LOCATION",
            "city": "Webster",
            "state": "TX",
            "postal_code": "775984841",
            "country_code": "US",
            "telephone_number": "281-724-8184",
            "fax_number": "281-336-1674",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ELKHALILI",
        "first_name": "ABDELNASER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-10",
        "last_updated": "2026-02-19",
        "certification_date": "2026-02-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "TX",
            "license": "L8678",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "L8678",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Webster, TX

Sources for this page

Verify at the official NPI Registry.