Muhammad Siddiqui, M.D
NPI 1689824443 · Nephrology Physician · Dallas, TX
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Muhammad Siddiqui, M.D is a Nephrology Physician provider in Dallas, TX (NPI 1689824443).
Provider details
- NPI number
- 1689824443
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- N7175 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
557 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 416 | $212 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 94 | $118 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 18 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $172 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 12 | $140 |
Typical Medicare-allowed amounts for these services range $75–$212 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- Msc 10-5550 1 University of New MexicoAlbuquerque, NM 87131Phone: (505) 272-4661Fax: (505) 272-4628
- 800 E Dawson StTyler, TX 75701-2036Phone: (903) 606-7264Fax: (903) 525-1254
Registry dates
- Enumerated
- 2008-09-29
- Last updated
- 2025-06-10
- Certified
- 2025-06-10
Frequently asked questions
- What is Muhammad Siddiqui's NPI number?
- Muhammad Siddiqui's National Provider Identifier (NPI) is 1689824443, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Muhammad Siddiqui's specialty?
- Muhammad Siddiqui is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Muhammad Siddiqui located?
- Muhammad Siddiqui's practice location on file with NPPES is 221 W Colorado Blvd Ste 525, Dallas, TX 75208-2312.
- What is Muhammad Siddiqui's phone number?
- The practice phone number listed in the NPPES registry for Muhammad Siddiqui is (214) 960-5681.
- Does Muhammad Siddiqui accept Medicare?
- Muhammad Siddiqui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Muhammad Siddiqui's NPI active?
- Yes — Muhammad Siddiqui's NPI (1689824443) is active in the NPPES registry as of the last update on 2025-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.