MR. MUHAMMAD AHMAR SIDDIQUI M.D
NPI 1689824443
Internal Medicine - Nephrology in Dallas, TX

Active since September 29, 2008PECOS EnrolledAccepts Medicare Assignment
221 W COLORADO BLVD STE 525, DALLAS, TX 75208(214) 960-5681(214) 960-5681 Get Directions Write a Review

NPPES record last updated: June 10, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 10, 2025, May 10, 2022, Jul 22, 2021 (3 updates tracked since 2021).

About Mr. Muhammad Ahmar Siddiqui M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. MUHAMMAD AHMAR SIDDIQUI M.D (NPI 1689824443) is an individual nephrology provider in Dallas, Texas, licensed in Texas (N7175) and active in the NPI registry since September 2008. He is enrolled in Medicare PECOS, is affiliated with Texas Health Arlington Memorial Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1689824443
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameMR. MUHAMMAD AHMAR SIDDIQUICredential: M.D
Location Address221 W COLORADO BLVD STE 525Dallas, TX 75208-2312
Mailing Address5605 N Macarthur Blvd Ste 740Irving, TX 75038-2626 · (214) 960-5681 · Fax (903) 525-1254
Fax(214) 960-5681
Sole ProprietorYes
Medical School CMSOtherGraduated 2003
Enumeration DateSeptember 29, 2008
Last NPPES UpdateJune 10, 20253 updates tracked since enumeration
NPPES CertifiedJune 10, 2025
NPI 1689824443 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in TX · N7175
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License N7175 (TX)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License N7175 (TX)
Also ListedHospitalistTaxonomy 208M00000X · License N7175 (TX)
221 W COLORADO BLVD STE 525, Dallas, TX 75208

Secondary Practice Locations 2

Location 1MSC 10-5550 1 University of New MexicoAlbuquerque, NM 87131 · Phone (505) 272-4661 · Fax (505) 272-4628
Location 2800 E Dawson StTyler, TX 75701-2036 · Phone (903) 606-7264 · Fax (903) 525-1254

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mr. Muhammad Ahmar Siddiqui M.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214053297
PECOS Enrollment IDI20100928000171
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
416 services186 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
94 services71 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
18 services16 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
17 services17 patients
Emergent insertion of breathing tube into windpipe using an endoscope 31500
This is a procedure where a thin tube is inserted into your windpipe to aid in breathing. It's done in emergency situations, using an endoscope, a tool with a light and camera, to ensure correct placement.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Texas Health Arlington Memorial Hospital

Acute Care Hospitals · Arlington, TX
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450064
Location800 W Randol Mill RdArlington, TX 76012 · Tarrant County
Emergency services Birthing friendly

Christus Mother Frances Hospital

Acute Care Hospitals · Tyler, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450102
Location800 East DawsonTyler, TX 75701 · Smith County
Emergency services Birthing friendly

Methodist Mansfield Medical Center

Acute Care Hospitals · Mansfield, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670023
Location2700 E Broad StreetMansfield, TX 76063 · Tarrant County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75208 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$131.01 typical visit price
range $57.18 – $172.86
Typical copayment $32.75 (range $14.29 – $43.21)
Most-billed visit code 99204
Established Patient
$100.80 typical visit price
range $18.48 – $141.20
Typical copayment $25.20 (range $4.62 – $35.30)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
2 suppliers15 claims15 services$41.44 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Pulmonary Disease)
221 W COLORADO BLVD STE 525
DALLAS, TX 75208
Psychiatry & Neurology (Neurocritical Care)
221 W COLORADO BLVD STE 525
DALLAS, TX 75208
Physician Assistant
221 W COLORADO BLVD STE 525
DALLAS, TX 75208
Nurse Practitioner (Acute Care)
221 W COLORADO BLVD STE 525
DALLAS, TX 75208
Nurse Practitioner (Acute Care)
221 W COLORADO BLVD STE 525
DALLAS, TX 75208
Nurse Practitioner (Acute Care)
221 W COLORADO BLVD STE 525
DALLAS, TX 75208
Nurse Practitioner (Acute Care)
221 W COLORADO BLVD STE 525
DALLAS, TX 75208
Nurse Practitioner (Acute Care)
221 W COLORADO BLVD STE 525
DALLAS, TX 75208

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Muhammad Siddiqui's NPI number?

The NPI number for Muhammad Siddiqui is 1689824443. It was assigned to this individual provider in the NPPES registry on September 29, 2008.

Where is Muhammad Siddiqui located?

Muhammad Siddiqui practices at 221 W Colorado Blvd Ste 525, Dallas, TX 75208. The listed phone number is (214) 960-5681.

What is Muhammad Siddiqui's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Muhammad Siddiqui enrolled in Medicare?

Yes. Muhammad Siddiqui is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Muhammad Siddiqui accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Muhammad Siddiqui as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Muhammad Siddiqui affiliated with any hospitals?

According to CMS data, Muhammad Siddiqui is affiliated with Texas Health Arlington Memorial Hospital, Christus Mother Frances Hospital and Methodist Mansfield Medical Center.

When was this NPI record last updated?

The NPPES record for Muhammad Siddiqui was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.