Active NPI
Muhammad Ahmar Siddiqui, M.D
- Nephrology Physician
- Dallas, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nephrology Physician
- License
- N7175
- Practice address
- 221 W Colorado Blvd Ste 525
Dallas, TX 75208-2312 - Phone
- (214) 960-5681
- Fax
- (214) 960-5681
- NPI assigned
- Sep 29, 2008
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 5
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | N7175 | TX | |
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | N7175 | TX | |
| Hospitalist Physician | 208M00000X | N7175 | TX | |
| Student in an Organized Health Care Education/Training Program | 390200000X | NM | ||
| Nephrology Physician | 207RN0300X | N7175 | TX | Primary |
Addresses
Primary practice location
221 W Colorado Blvd Ste 525
Dallas, TX 75208-2312
Mailing address
5605 N Macarthur Blvd Ste 740
Irving, TX 75038-2626
Phone (214) 960-5681
Other practice location 1
MSC 10-5550 1 University of New Mexico
Albuquerque, NM 87131
Phone (505) 272-4661
Other practice location 2
800 E Dawson St
Tyler, TX 75701-2036
Phone (903) 606-7264
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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Critical Care (Intensivists)
- Education
- Other, 2003
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
221 W Colorado Blvd
Suite 525
Dallas, TX 75208-2312
Phone 214960568175
800 E Dawson St
Tyler, TX 75701-2036
Phone (903) 593-8441
Hospital & facility affiliations
- Methodist Mansfield Medical Center
- Texas Health Arlington Memorial Hospital
- Christus Mother Frances Hospital
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Christus Trinity Clinic Texas | Current | Accepting new patients | |
| Cepamerica Texas PA | Critical Care Medicine | Current | Accepting new patients |
| Northeast Texas Intensivists, PLLC | Internal Medicine | Current | Accepting new patients |
| Texas Health Physicians Group | Current | Accepting new patients | |
| Cepamerica Texas PA | Critical Care Medicine | Current | Accepting new patients |
| Questcare Intensivists PLLC | Internal Medicine | Current | Accepting new patients |
| Dallas Pulmonary & Critical Care PA | Critical Care Medicine | Current | Accepting new patients |
| Texas Health Physicians Group | Current | Accepting new patients | |
| Consultants in Lungs and Critical Care LLC | Critical Care Medicine | Current | Accepting new patients |
| Christus Trinity Clinic Texas | Internal Medicine | Current | Accepting new patients |
| Texas Health Physicians Group | Internal Medicine | Current | Accepting new patients |
| Questcare Intensivists PLLC | Internal Medicine | Current | Accepting new patients |
Locations
3301 Matlock Rd
Arlington, TX 76015
Phone (682) 509-6200
1600 Hospital Pkwy
Bedford, TX 76022
Phone (817) 355-7803
4333 N Josey Ln
Ste 104
Carrollton, TX 75010
Phone (972) 394-4500
221 W Colorado Blvd
Ste 525
Dallas, TX 75208
Phone (214) 956-4525
7777 Forest Ln
Dallas, TX 75230
Phone (972) 566-7283
2301 S FM 51
Ste 300
Decatur, TX 76234
Phone (940) 600-5799
609 Medical Center Dr
Decatur, TX 76234
Phone (940) 626-1360
5605 N MacArthur Blvd
Ste 740
Irving, TX 75038
Phone 2149605681 ext. 75
700 E Marshall Ave
Longview, TX 75601
Phone (903) 236-2000
5252 W University Dr
McKinney, TX 75071
Phone (469) 764-1000
3901 W 15th St
Plano, TX 75075
Phone (972) 519-1115
11212 State Highway 151
San Antonio, TX 78251
Phone (210) 281-5066
2827 Babcock Rd
San Antonio, TX 78229
Phone (210) 253-9955
341 Wheatfield Dr
Ste 100
Sunnyvale, TX 75182
Phone (972) 329-1996
800 E Dawson St
Fl 4
Tyler, TX 75701
Phone (903) 531-4080
800 E Dawson St
Tyler, TX 75701
Phone (903) 531-5018
630 S Fleishel Ave
Tyler, TX 75701
Phone (903) 510-8888
713 E Anderson St
Weatherford, TX 76086
Phone (682) 582-1000
Organizations & group practices 12
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.
-
- Critical Care Medicine (Internal Medicine) Physician
- Dallas, TX
- NPI 1235402728
-
- Critical Care Medicine (Internal Medicine) Physician
- Longview, TX
- NPI 1497536676
-
- Critical Care Medicine (Internal Medicine) Physician
- San Antonio, TX
- NPI 1881269934
-
- Pulmonary Disease Physician
- Decatur, TX
- NPI 1477060549
Critical Care Medicine
-
- Internal Medicine Physician
- Denton, TX
- NPI 1164758074
-
- Internal Medicine Physician
- Fort Worth, TX
- NPI 1174573596
-
- Critical Care Medicine (Internal Medicine) Physician
- San Antonio, TX
- NPI 1932774080
-
- Rural Health Clinic/Center
- Winnsboro, TX
- NPI 1801673165
-
- Internal Medicine Physician
- McKinney, TX
- NPI 1760920995
-
- Sleep Disorder Diagnostic Clinic/Center
- Fort Worth, TX
- NPI 1114395969
-
- Sleep Disorder Diagnostic Clinic/Center
- Dallas, TX
- NPI 1174992051
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Mansfield, TX
- NPI 1689629941
-
- General Acute Care Hospital
- Tyler, TX
- NPI 1679578439
-
- General Acute Care Hospital
- Arlington, TX
- NPI 1174533343
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1222646400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1749513600000",
"number": "1689824443",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5605 N MACARTHUR BLVD STE 740",
"city": "IRVING",
"state": "TX",
"postal_code": "750382626",
"telephone_number": "214-960-5681",
"fax_number": "903-525-1254"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "221 W COLORADO BLVD STE 525",
"city": "DALLAS",
"state": "TX",
"postal_code": "752082312",
"telephone_number": "214-960-5681",
"fax_number": "214-960-5681"
}
],
"practiceLocations": [
{
"address_1": "MSC 10-5550 1 University of New Mexico",
"address_purpose": "LOCATION",
"city": "Albuquerque",
"state": "NM",
"postal_code": "87131",
"country_code": "US",
"telephone_number": "505-272-4661",
"fax_number": "505-272-4628",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "800 E Dawson St",
"address_purpose": "LOCATION",
"city": "Tyler",
"state": "TX",
"postal_code": "757012036",
"country_code": "US",
"telephone_number": "903-606-7264",
"fax_number": "903-525-1254",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "SIDDIQUI",
"first_name": "MUHAMMAD",
"middle_name": "AHMAR",
"name_prefix": "Mr.",
"credential": "M.D",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2008-09-29",
"last_updated": "2025-06-10",
"certification_date": "2025-06-10",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "N7175",
"primary": false
},
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "TX",
"license": "N7175",
"primary": false
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "TX",
"license": "N7175",
"primary": false
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": "NM",
"license": null,
"primary": false
},
{
"code": "207RN0300X",
"taxonomy_group": "",
"desc": "Internal Medicine, Nephrology",
"state": "TX",
"license": "N7175",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Dallas, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.