DR. DIYAA MOHAMMAD HASSANEIN NAWAR M.D.
NPI 1245382209
Family Medicine in Houston, TX
About Dr. Diyaa Mohammad Hassanein Nawar M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DIYAA MOHAMMAD HASSANEIN NAWAR M.D. (NPI 1245382209) is an individual family medicine provider in Houston, Texas, licensed in Texas (M2515) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Hca Houston Healthcare Kingwood, and is a graduate of Other (1996).
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. Diyaa Mohammad Hassanein Nawar 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
8Medicare enrollment records show Diyaa Nawar reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Navasota, TX 77868
- Reassigned Medicare billing, Texas enrollment
- 132 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 1,452 clinicians in this Medicare group
Laredo, TX 78045
- Reassigned Medicare billing, Texas enrollment
- 119 clinicians in this Medicare group
Laredo, TX 78041
- Reassigned Medicare billing, Texas enrollment
- 84 clinicians in this Medicare group
Mcallen, TX 78503
- Reassigned Medicare billing, Texas enrollment
- 170 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,338 clinicians in this Medicare group
Lubbock, TX 79401
- Reassigned Medicare billing, Texas enrollment
- 1,439 clinicians in this Medicare group
Aventura, FL 33180
- Reassigned Medicare billing, Florida enrollment
- 1,912 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hca Houston Healthcare Kingwood
Acute Care Hospitals · Kingwood, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77020 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Diyaa Nawar's NPI number?
The NPI number for Diyaa Nawar is 1245382209. It was assigned to this individual provider in the NPPES registry on January 18, 2007.
Where is Diyaa Nawar located?
Diyaa Nawar practices at Houston Community Health Ctrs. Inc./Denver Harbor Clin 424 Hahlo St, Houston, TX 77020. The listed phone number is (713) 674-3326.
What is Diyaa Nawar's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Diyaa Nawar enrolled in Medicare?
Yes. Diyaa Nawar 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 Diyaa Nawar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diyaa Nawar reassigns Medicare benefits to 8 organizations: Brazos Valley Emergency Physicians PA (Navasota, TX), Emergency Medicine Services Of Tx, PLLC (San Antonio, TX), Webb Emergency Medicine Associates PA (Laredo, TX), Mcadams Emergency Medicine Associates, PA (Laredo, TX), Mcallen Emergency Medicine Associates PA (Mcallen, TX) and 3 more organizations, listed in the Medicare section above. 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 Diyaa Nawar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diyaa Nawar accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Health, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Diyaa Nawar 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 Diyaa Nawar affiliated with any hospitals?
According to CMS data, Diyaa Nawar is affiliated with Hca Houston Healthcare Kingwood.
When was this NPI record last updated?
The NPPES record for Diyaa Nawar was last updated on July 12, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Diyaa Mohammad Hassanein Nawar, M.D. · NPI 1245382209
Family Medicine physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since January 18, 2007.
## Identity
- **NPI:** 1245382209 (Entity type: Individual)
- **Enumerated:** January 18, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** M2515 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** HOUSTON COMMUNITY HEALTH CTRS. INC./DENVER HARBOR CLIN, 424 HAHLO ST, Houston, TX 77020-3022
- **Phone:** (713) 674-3326
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Brazos Valley Emergency Physicians PA (NPI 1982642955, Navasota, TX); Emergency Medicine Services Of Tx, PLLC (NPI 1245938729, San Antonio, TX); Webb Emergency Medicine Associates PA (NPI 1770543555, Laredo, TX); Mcadams Emergency Medicine Associates, PA (NPI 1275183956, Laredo, TX); Mcallen Emergency Medicine Associates PA (NPI 1336543636, Mcallen, TX); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** July 12, 2007
---
Source: [NPI Profile](https://npiprofile.com/npi/1245382209) · Data from the CMS NPPES public registry.