MUHAMMAD BADER HAMMAMI M.D.
NPI 1073801809
Internal Medicine - Gastroenterology in Rancho Cucamonga, CA
About Muhammad Bader Hammami M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MUHAMMAD BADER HAMMAMI M.D. (NPI 1073801809) is an individual gastroenterology provider in Rancho Cucamonga, California, licensed in California (A131069) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses
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 Bader Hammami 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 Reassignments
4Medicare enrollment records show Muhammad Hammami reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rancho Cucamonga, CA 91730
- Reassigned Medicare billing, California enrollment
Rancho Cucamonga, CA 91730
- Reassigned Medicare billing, California enrollment
- 2,584 clinicians in this Medicare group
Upland, CA 91786
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Chino, CA 91710
- Reassigned Medicare billing, California enrollment
- 145 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 2
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 91730 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RANCHO CUCAMONGA, CA 91730
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 Hammami's NPI number?
The NPI number for Muhammad Hammami is 1073801809. It was assigned to this individual provider in the NPPES registry on July 14, 2011.
Where is Muhammad Hammami located?
Muhammad Hammami practices at 9140 Haven Ave Ste 115, Rancho Cucamonga, CA 91730. The listed phone number is (909) 606-4860.
What is Muhammad Hammami's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Muhammad Hammami enrolled in Medicare?
Yes. Muhammad Hammami 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 organizations bill Medicare for Muhammad Hammami's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Muhammad Hammami reassigns Medicare benefits to 4 organizations: Muhammad Hammami MD Inc (Rancho Cucamonga, CA), Faculty Physicians And Surgeons Of Llusm (Rancho Cucamonga, CA), Basim Z. Abdelkarim, M.D., Inc. (Upland, CA) and Desert Valley Medical Group, Inc (Chino, CA). Each 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 Hammami's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Muhammad Hammami was last updated on April 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 Bader Hammami, M.D. · NPI 1073801809
Gastroenterology physician in Rancho Cucamonga, California. Individual provider, active in the CMS NPPES registry since July 14, 2011.
## Identity
- **NPI:** 1073801809 (Entity type: Individual)
- **Enumerated:** July 14, 2011
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A131069 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9140 HAVEN AVE STE 115, Rancho Cucamonga, CA 91730-5414
- **Phone:** (909) 606-4860
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Muhammad Hammami MD Inc (NPI 1134826951, Rancho Cucamonga, CA); Faculty Physicians And Surgeons Of Llusm (NPI 1568113827, Rancho Cucamonga, CA); Basim Z. Abdelkarim, M.D., Inc. (NPI 1063593739, Upland, CA); Desert Valley Medical Group, Inc (NPI 1588246425, Chino, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Saint Louis University School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** April 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1073801809) · Data from the CMS NPPES public registry.