DR. MOUNIR CONTRERAS CEJIN MD
NPI 1699417832
Emergency Medicine in Dallas, TX
About Dr. Mounir Contreras Cejin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MOUNIR CONTRERAS CEJIN MD (NPI 1699417832) is an individual emergency medicine provider in Dallas, Texas, licensed in Texas (V5997) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, is affiliated with Medical City Plano, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Mounir Contreras Cejin 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
2Medicare enrollment records show Mounir Contreras Cejin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dallas, TX 75246
- Reassigned Medicare billing, Texas enrollment
- 1,044 clinicians in this Medicare group
Dallas, TX 75230
- Reassigned Medicare billing, Texas enrollment
- 454 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medical City Plano
Acute Care Hospitals · Plano, TXBaylor Scott And White Medical Center Lake Pointe
Acute Care Hospitals · Rowlett, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75390 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DALLAS, TX 75390
DALLAS, TX 75390
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 Mounir Contreras Cejin's NPI number?
The NPI number for Mounir Contreras Cejin is 1699417832. It was assigned to this individual provider in the NPPES registry on April 8, 2022.
Where is Mounir Contreras Cejin located?
Mounir Contreras Cejin practices at 5323 Harry Hines Blvd, Dallas, TX 75390. The listed phone number is (000) 000-0000.
What is Mounir Contreras Cejin's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mounir Contreras Cejin enrolled in Medicare?
Yes. Mounir Contreras Cejin 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 Mounir Contreras Cejin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mounir Contreras Cejin reassigns Medicare benefits to 2 organizations: Century Integrated Partners, Inc (Dallas, TX) and Questcare Medical Services, PLLC (Dallas, TX). 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 Mounir Contreras Cejin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mounir Contreras Cejin accept?
Health plans from Blue Cross and Blue Shield of Texas, Oscar Health and Oscar Insurance Company list Mounir Contreras Cejin 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 Mounir Contreras Cejin affiliated with any hospitals?
According to CMS data, Mounir Contreras Cejin is affiliated with Medical City Plano and Baylor Scott And White Medical Center Lake Pointe.
When was this NPI record last updated?
The NPPES record for Mounir Contreras Cejin was last updated on June 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Mounir Contreras Cejin, MD · NPI 1699417832
Emergency Medicine physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since April 8, 2022.
## Identity
- **NPI:** 1699417832 (Entity type: Individual)
- **Enumerated:** April 8, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** V5997 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 5323 HARRY HINES BLVD, Dallas, TX 75390-7201
- **Phone:** (000) 000-0000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Century Integrated Partners, Inc (NPI 1447615711, Dallas, TX); Questcare Medical Services, PLLC (NPI 1912059247, Dallas, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** June 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1699417832) · Data from the CMS NPPES public registry.