MAHMOUD H ZAYED MD
NPI 1699790196
Internal Medicine - Cardiovascular Disease in Pascagoula, MS
About Mahmoud H Zayed Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAHMOUD H ZAYED MD (NPI 1699790196) is an individual cardiovascular disease provider in Pascagoula, Mississippi, licensed in Mississippi (MS13829) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Merit Health Biloxi, and is a graduate of Other (1981).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Mahmoud H Zayed Md 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
5Medicare enrollment records show Mahmoud Zayed reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pascagoula, MS 39581
- Reassigned Medicare billing, Mississippi enrollment
- 450 clinicians in this Medicare group
Gautier, MS 39553
- Reassigned Medicare billing, Mississippi enrollment
- 8 clinicians in this Medicare group
Ocean Springs, MS 39564
- Reassigned Medicare billing, Mississippi enrollment
- 17 clinicians in this Medicare group
Biloxi, MS 39532
- Reassigned Medicare billing, Mississippi enrollment
- 731 clinicians in this Medicare group
Gulfport, MS 39503
- Reassigned Medicare billing, Mississippi enrollment
- 298 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 54
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Merit Health Biloxi
Acute Care Hospitals · Biloxi, MSMemorial Hospital At Gulfport
Acute Care Hospitals · Gulfport, MSSinging River Health System
Acute Care Hospitals · Pascagoula, MSSinging River Gulfport
Acute Care Hospitals · Gulfport, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39581 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 7
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PASCAGOULA, MS 39581
PASCAGOULA, MS 39581
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 Mahmoud Zayed's NPI number?
The NPI number for Mahmoud Zayed is 1699790196. It was assigned to this individual provider in the NPPES registry on July 13, 2006.
Where is Mahmoud Zayed located?
Mahmoud Zayed practices at 4300 Hospital St Ste 102, Pascagoula, MS 39581. The listed phone number is (228) 762-1002.
What is Mahmoud Zayed's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Mahmoud Zayed enrolled in Medicare?
Yes. Mahmoud Zayed 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 Mahmoud Zayed's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mahmoud Zayed reassigns Medicare benefits to 5 organizations: Singing River Health System (Pascagoula, MS), Mississippi Cardiovascular Center Of Excellence, LLC (Gautier, MS), Southern Ms Heart Center,pa (Ocean Springs, MS), Memorial Hospital At Gulfport (Biloxi, MS) and Singing River Gulfport (Gulfport, MS). 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 Mahmoud Zayed's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mahmoud Zayed accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 3 other insurers list Mahmoud Zayed 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 Mahmoud Zayed affiliated with any hospitals?
According to CMS data, Mahmoud Zayed is affiliated with Merit Health Biloxi, Memorial Hospital At Gulfport, Singing River Health System and Singing River Gulfport.
When was this NPI record last updated?
The NPPES record for Mahmoud Zayed was last updated on February 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.