MUHAMMAD SHAMIM M.D.
NPI 1326085796
Internal Medicine - Rheumatology in Brownsville, TX
About Muhammad Shamim M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MUHAMMAD SHAMIM M.D. (NPI 1326085796) is an individual rheumatology provider in Brownsville, Texas, licensed in Texas (L8952) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1987).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Muhammad Shamim 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.
Medicare Billing Reassignment
Medicare enrollment records show Muhammad Shamim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brownsville, TX 78521
- Reassigned Medicare billing, Texas enrollment
- 31 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78521 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROWNSVILLE, TX 78521
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 Shamim's NPI number?
The NPI number for Muhammad Shamim is 1326085796. It was assigned to this individual provider in the NPPES registry on June 2, 2006.
Where is Muhammad Shamim located?
Muhammad Shamim practices at 191 E. Price Road, Brownsville, TX 78521. The listed phone number is (956) 548-7400.
What is Muhammad Shamim's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Muhammad Shamim enrolled in Medicare?
Yes. Muhammad Shamim 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.
Which organization bills Medicare for Muhammad Shamim's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Muhammad Shamim reassigns Medicare benefits to Brownsville Community Health Clinic Corporation (Brownsville, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Muhammad Shamim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Muhammad Shamim 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 3 other insurers list Muhammad Shamim 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.
When was this NPI record last updated?
The NPPES record for Muhammad Shamim was last updated on January 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Muhammad Shamim, M.D. · NPI 1326085796
Rheumatology physician in Brownsville, Texas. Individual provider, active in the CMS NPPES registry since June 2, 2006.
## Identity
- **NPI:** 1326085796 (Entity type: Individual)
- **Enumerated:** June 2, 2006
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** L8952 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 191 E. PRICE ROAD, Brownsville, TX 78521
- **Phone:** (956) 548-7400 · **Fax:** (956) 621-3689
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Brownsville Community Health Clinic Corporation (NPI 1538218458, Brownsville, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1987
## Record status
- **NPPES last updated:** January 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1326085796) · Data from the CMS NPPES public registry.