NPIMap

Individual provider Active NPI

Fayez G Seif, MD

  • Gastroenterology Physician
  • Mesquite, TX
National Provider Identifier
1861591604
Registry record updated May 16, 2013
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
K1055 Issued in TX
Practice address
2694 N Galloway Ave
Suite 501
Mesquite, TX 75150
Phone
(972) 681-2226
Fax
(972) 681-7838
NPI assigned
Sep 21, 2006
Last updated
May 16, 2013By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 16, 2013

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 K1055 TX Primary

Addresses

Primary practice location

2694 N Galloway Ave
Suite 501
Mesquite, TX 75150

Mailing address

PO Box 35629
Dallas, TX 75235-0629
Phone (214) 424-2213

Other identifiers 4

IdentifierTypeStateIssuer
101638802MedicaidTX
8S9978OtherTXBCBS
86V006OtherTXBCBS
K1055OtherTXSTATE BOARD

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20090223000366 TX Practitioner - GastroenterologyPractitioner - Internal Medicine 1153408968 Reassigns benefits to 1 organization
O20071005000615 TX Part A Provider - Hospital 5597850404 9 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Rockwall, TX

NPI to CCN mapping 1

The Medicare certification numbers (CCNs) connected to NPI 1861591604. Details of each certification follow.

Hospital certification: CCN 670044

Legal name
ROCKWALL REGIONAL HOSPITAL, LLC
Doing business as
TEXAS HEALTH HOSPITAL ROCKWALL
Certification status
Active
Provider type (POS)
Hospital – Short-term
Participating since
Apr 4, 2008
Last certification
Sep 6, 2019
Beds
61 (33 certified)
Ownership / control type
Private (for profit)
Organization structure
LLCProprietary
Incorporated
Sep 11, 2007 in TX
Enrollment address
3150 Horizon Rd
Rockwall, TX 75032-7805
Main/Primary Hospital Location
Hospital subgroups
General

Other NPIs on the same Medicare enrollment 9

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

Care Compare: Hospital

Medicare Care Compare
Listed as
Texas Health Presbyterian Hospital RockwallCCN 670044 · All quality measures
Overall star rating
5 of 5
Type
Acute Care Hospitals
Ownership
Proprietary
Medicare certification status
ActiveFrom the Provider of Services file
Emergency services
Yes

Care Compare profile

Medicare Care Compare
Specialty
GastroenterologyAlso: Internal Medicine
Education
Other, 1985
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

601 S Main St
Keller, TX 76248-7029
Phone (817) 741-4347

701 Tuscan Dr
Suite 110
Irving, TX 75039-3838
Phone (214) 496-1100

P O Box
Suite 35629
Dallas, TX 75235-0629

PO Box
Suite 35629
Dallas, TX 75235-0629

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
80.98 of 100Reported as group
Quality
66.51
Promoting interoperability
98
Improvement activities
40
Cost
71.76

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy159
Upper gastrointestinal (GI) endoscopy for acid reflux166

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
K1055TXMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Texas Digestive Disease Consultants, PLLC Gastroenterology CurrentSince Jan 1, 2009 Accepting new patients
Texas Digestive Disease Consultants PLLC Gastroenterology CurrentSince Jan 1, 2009 Accepting new patients
Texas Gastrointestinal Associates PA Gastroenterology Past Accepting new patients
Mesquite TX Endoscopy ASC LLC Past Accepting new patients

Locations

701 Tuscan Dr
Ste 110
Irving, TX 75039
Phone (214) 496-1100

601 S Main St
Keller, TX 76248
Phone (817) 741-4347

2694 N Galloway Ave
Ste 501
Mesquite, TX 75150
Phone (972) 681-2226

Ownership & related parties

All disclosed owners & managing parties 11

As disclosed on the Medicare enrollment (CMS All Owners files). Individuals include officers, directors and managing employees, who may not hold ownership.

NameRoleSinceShare
Texas Health Partners LLC Organization, Arlington, TX LLC Operational/Managerial Control Mar 4, 2008
Jeffrey Wayne Mincher Individual Corporate OfficerSVP Chief Revenue Cycle Jun 20, 2022
Texas Health Resources Organization, Arlington, TX Non-profit 5% Or Greater Direct Ownership Interest Jun 1, 2007 61.18%
Fraser Hay Individual Corporate DirectorBoard Member Oct 28, 2025
Sarah S Way Individual Corporate DirectorBoard Member Oct 28, 2025
JP Morgan Chase, N.a. Organization, San Antonio, TX Financial institution 5% Or Greater Security Interest Feb 8, 2008 64%
Rick E McWhorter Individual Corporate DirectorBoard Member Oct 28, 2025
Matthew K McVey Individual W-2 Managing EmployeeEntity Finance Officer Mar 9, 2025
Jason a Linscott Individual Corporate OfficerPresident Jun 16, 2025
W-2 Managing EmployeeCfo/Interim President May 1, 2016
Tami L Hlus-Hawkins Individual Corporate OfficerVP Patient Care Services Jul 24, 2011
W-2 Managing Employee Jul 24, 2011
Amanda Thrash Individual Corporate DirectorBoard Member Oct 28, 2025

Owners & managing parties with NPI records 1

Owners and managing parties disclosed on this facility’s Medicare enrollment that are themselves Medicare-enrolled.

Practitioners & affiliated clinicians

Affiliated clinicians 402

Clinicians who list this facility as an affiliation in Medicare Care Compare.

View all 402

Organizations & group practices 4

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 4

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": "1158796800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1368662400000",
    "number": "1861591604",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35629",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752350629",
            "telephone_number": "214-424-2213",
            "fax_number": "214-231-2159"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2694 N GALLOWAY AVE",
            "address_2": "SUITE 501",
            "city": "MESQUITE",
            "state": "TX",
            "postal_code": "75150",
            "telephone_number": "972-681-2226",
            "fax_number": "972-681-7838"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SEIF",
        "first_name": "FAYEZ",
        "middle_name": "G",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-21",
        "last_updated": "2013-05-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TX",
            "license": "K1055",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "101638802",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "8S9978",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "86V006",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE BOARD",
            "identifier": "K1055",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Mesquite, TX

Sources for this page

Verify at the official NPI Registry.