Muhammad Shamim, M.D.
NPI 1326085796 · Rheumatology Physician · Brownsville, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Muhammad Shamim, M.D. is a Rheumatology Physician provider in Brownsville, TX (NPI 1326085796).
Provider details
- NPI number
- 1326085796
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L8952 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
436 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 162 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 139 | $8 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 135 | $3 |
Typical Medicare-allowed amounts for these services range $3–$10 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 297 | 42 |
| Hydroxychloroquine Sulfate | 228 | 39 |
| Abataceptbrand: Orencia Clickject | 196 | 23 |
| Teriparatide | 173 | 21 |
| Teriparatidebrand: Forteo | 160 | 21 |
| Denosumabbrand: Prolia | 138 | 78 |
| Diclofenac Sodium | 127 | 43 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$456 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2026-01-07
- Certified
- 2026-01-07
Frequently asked questions
- What is Muhammad Shamim's NPI number?
- Muhammad Shamim's National Provider Identifier (NPI) is 1326085796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Muhammad Shamim's specialty?
- Muhammad Shamim is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Muhammad Shamim located?
- Muhammad Shamim's practice location on file with NPPES is 191 E. Price Road, Brownsville, TX 78521.
- What is Muhammad Shamim's phone number?
- The practice phone number listed in the NPPES registry for Muhammad Shamim is (956) 548-7400.
- Does Muhammad Shamim accept Medicare?
- Muhammad Shamim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Muhammad Shamim's NPI active?
- Yes — Muhammad Shamim's NPI (1326085796) is active in the NPPES registry as of the last update on 2026-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.