ZAID ALI SIDDIQUI M.D.
NPI 1285014035
Radiology - Radiation Oncology in Houston, TX
About Zaid Ali Siddiqui M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZAID ALI SIDDIQUI M.D. (NPI 1285014035) is an individual radiation oncology provider in Houston, Texas, licensed in Texas (U4016) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, is affiliated with Chi St Luke's Health Baylor College Of Medicine Me, and maintains a secondary practice location in Pittsburgh.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Zaid Ali Siddiqui 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
6Medicare enrollment records show Zaid Siddiqui reassigns Medicare billing to 6 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
- 2,554 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,296 clinicians in this Medicare group
Washington, PA 15301
- Reassigned Medicare billing, Pennsylvania enrollment
- 43 clinicians in this Medicare group
Pittsburgh, PA 15243
- Reassigned Medicare billing, Pennsylvania enrollment
- 45 clinicians in this Medicare group
Pittsburgh, PA 15232
- Reassigned Medicare billing, Pennsylvania enrollment
- 101 clinicians in this Medicare group
Greensburg, PA 15601
- Reassigned Medicare billing, Pennsylvania enrollment
- 53 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 9
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Chi St Luke's Health Baylor College Of Medicine Me
Acute Care Hospitals · Houston, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77054 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 77054
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 Zaid Siddiqui's NPI number?
The NPI number for Zaid Siddiqui is 1285014035. It was assigned to this individual provider in the NPPES registry on June 8, 2015.
Where is Zaid Siddiqui located?
Zaid Siddiqui practices at 2525A Holly Hall St, Houston, TX 77054. The listed phone number is (713) 566-3757.
What is Zaid Siddiqui's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Zaid Siddiqui enrolled in Medicare?
Yes. Zaid Siddiqui 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 Zaid Siddiqui's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zaid Siddiqui reassigns Medicare benefits to 6 organizations: Baylor College Of Medicine (Houston, TX), Baylor College Of Medicine (Houston, TX), Upmc And The Washington Hospital Cancer Center (Washington, PA), Upmc/St Clair Hospital Cancer Center (Pittsburgh, PA), University Of Pittsburgh Cancer Institute Cancer Services (Pittsburgh, PA) and 1 more organization, 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 Zaid Siddiqui's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zaid Siddiqui 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 2 other insurers list Zaid Siddiqui 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 Zaid Siddiqui affiliated with any hospitals?
According to CMS data, Zaid Siddiqui is affiliated with Chi St Luke's Health Baylor College Of Medicine Me.
When was this NPI record last updated?
The NPPES record for Zaid Siddiqui was last updated on August 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Zaid Ali Siddiqui, M.D. · NPI 1285014035
Radiation Oncology physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since June 8, 2015.
## Identity
- **NPI:** 1285014035 (Entity type: Individual)
- **Enumerated:** June 8, 2015
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **State license:** U4016 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 2525A HOLLY HALL ST, Houston, TX 77054-4124
- **Phone:** (713) 566-3757
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Baylor College Of Medicine (NPI 1881026664, Houston, TX); Baylor College Of Medicine (NPI 1053352914, Houston, TX); Upmc And The Washington Hospital Cancer Center (NPI 1053417527, Washington, PA); Upmc/St Clair Hospital Cancer Center (NPI 1306138169, Pittsburgh, PA); University Of Pittsburgh Cancer Institute Cancer Services (NPI 1427025840, Pittsburgh, PA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** August 17, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1285014035) · Data from the CMS NPPES public registry.