DR. DORIAN ALEXANDER MD
NPI 1659658128
Emergency Medicine in Houston, TX
About Dr. Dorian Alexander Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DORIAN ALEXANDER MD (NPI 1659658128) is an individual emergency medicine provider in Houston, Texas, licensed in Texas (U9812) and active in the NPI registry since November 2011. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann - Texas Medical Center, and is a graduate of Other (2010).
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. Dorian Alexander 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
8Medicare enrollment records show Dorian Alexander reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 3,111 clinicians in this Medicare group
Dallas, TX 75231
- Reassigned Medicare billing, Texas enrollment
- 1,208 clinicians in this Medicare group
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 23 clinicians in this Medicare group
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 1,177 clinicians in this Medicare group
Brooklyn, NY 11212
- Reassigned Medicare billing, New York enrollment
- 782 clinicians in this Medicare group
Far Rockaway, NY 11691
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Island Emergency Medical Services PC
- 290 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Christiansted, St. Croix, VI 00821
- Reassigned Medicare billing, U.S. Virgin Islands enrollment
- 331 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hermann - Texas Medical Center
Acute Care Hospitals · Houston, TXHarris Health System
Acute Care Hospitals · Houston, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77030 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HOUSTON, TX 77030
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 Dorian Alexander's NPI number?
The NPI number for Dorian Alexander is 1659658128. It was assigned to this individual provider in the NPPES registry on November 10, 2011.
Where is Dorian Alexander located?
Dorian Alexander practices at 6411 Fannin St, Houston, TX 77030. The listed phone number is (410) 689-8988.
What is Dorian Alexander's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Dorian Alexander enrolled in Medicare?
Yes. Dorian Alexander 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 Dorian Alexander's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dorian Alexander reassigns Medicare benefits to 8 organizations: Ut Physicians (Houston, TX), Cogent Healthcare Of Texas, PA (Dallas, TX), Maimonides Medical Center - Maimo Criticare Fpp (Brooklyn, NY), Maimonides Faculty Practice Plan (Brooklyn, NY), Brookdale Hospital Medical Center (Brooklyn, NY) 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 Dorian Alexander's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dorian Alexander 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 Dorian Alexander 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 Dorian Alexander affiliated with any hospitals?
According to CMS data, Dorian Alexander is affiliated with Memorial Hermann - Texas Medical Center and Harris Health System.
When was this NPI record last updated?
The NPPES record for Dorian Alexander was last updated on August 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Dorian Alexander, MD · NPI 1659658128
Emergency Medicine physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since November 10, 2011.
## Identity
- **NPI:** 1659658128 (Entity type: Individual)
- **Enumerated:** November 10, 2011
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** U9812 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 6411 FANNIN ST, Houston, TX 77030-1501
- **Phone:** (410) 689-8988
## 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): Ut Physicians (NPI 1033157821, Houston, TX); Cogent Healthcare Of Texas, PA (NPI 1992722953, Dallas, TX); Maimonides Medical Center - Maimo Criticare Fpp (NPI 1265547178, Brooklyn, NY); Maimonides Faculty Practice Plan (NPI 1053344846, Brooklyn, NY); Brookdale Hospital Medical Center (NPI 1720028772, Brooklyn, NY); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** August 9, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1659658128) · Data from the CMS NPPES public registry.