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DR. GARY B WEISS PH.D, MD
NPI 1215973961
Internal Medicine - Hematology & Oncology in Webster, TX

Active since June 21, 2006PECOS Enrolled
89.44/100
CMS Quality Rating
501 MEDICAL CENTER BLVD, WEBSTER, TX 77598(281) 332-7505(281) 332-7616 Get Directions Write a Review

NPPES record last updated: March 20, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Gary B Weiss Ph.d, Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GARY B WEISS PH.D, MD (NPI 1215973961) is an individual hematology & oncology provider in Webster, Texas, licensed in Texas (F0075) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in El Paso.

NPPES Registry Identity

NPI1215973961
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. GARY B WEISSCredential: PH.D, MD
Location Address501 MEDICAL CENTER BLVDWebster, TX 77598-4219
Mailing AddressPo Box 911230Dallas, TX 75391-1230 · (972) 997-8000 · Fax (972) 437-9605
Phone(281) 332-7505
Fax(281) 332-7616
Sole ProprietorNo
Enumeration DateJune 21, 2006
Last NPPES UpdateMarch 20, 2025
NPPES CertifiedMarch 20, 2025
✔ NPI 1215973961 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in TX · F0075
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal MedicineTaxonomy 207R00000X · License F0075 (TX)
Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License F0075 (TX)
501 MEDICAL CENTER BLVD, Webster, TX 77598
Open in Google Maps ↗

Secondary Practice Location 1

Location 14801 Alberta AveEl Paso, TX 79905-2707 · Phone (915) 215-5200 · Fax (915) 215-8640

Other Identifiers 7

Other135570304TX · Cshcn
Medicaid135570307TX
Medicaid135570301TX
Medicaid135570303TX
Medicaid135570310TX
Medicaid135570309TX
Other8R1585TX · Blue Cross Of Texas

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gary B Weiss Ph.d, Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Gary Weiss reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Texas Oncology PA
Same address
Medical Oncology
501 MEDICAL CENTER BLVD
Webster, TX 77598
  • Reassigned Medicare billing, Texas enrollment
  • 1,054 clinicians in this Medicare group
NPI 1821265265 (972) 997-8000
Texas Tech University Health Sciences Center
681 mi
Family Medicine
313 S RIO VISTA RD
El Paso, TX 79927
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Texas Tech University Health Sciences Center El Paso
  • 856 clinicians in this Medicare group
NPI 1588622500 (915) 859-0817

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77598 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$176.98 typical visit price
range $58.24 – $176.98
Typical copayment $44.24 (range $14.56 – $44.24)
Most-billed visit code 99205
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

89.44/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality75.85
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ONCOLOGY PHARMACY SERVICES INC
Pharmacy (Specialty Pharmacy)
501 MEDICAL CENTER BLVD
WEBSTER, TX 77598
Harris County (281) 316-4926
DR. DAVID PAUL WALKER MD
Radiology (Radiation Oncology)
501 MEDICAL CENTER BLVD
WEBSTER, TX 77598
Harris County (281) 332-7505
DR. DHATRI KODALI MD
Internal Medicine (Hematology & Oncology)
501 MEDICAL CENTER BLVD
WEBSTER, TX 77598
Harris County (281) 332-7505
MR. DAVID THOMAS BENNER R.PH.
Pharmacist
501 MEDICAL CENTER BLVD
WEBSTER, TX 77598
Harris County (281) 316-4926
TEXAS ONCOLOGY PA
Internal Medicine (Medical Oncology)
501 MEDICAL CENTER BLVD
WEBSTER, TX 77598
Harris County (972) 997-8000
DR. ALAN JOSEPH RODNEY MD
Internal Medicine (Hematology & Oncology)
501 MEDICAL CENTER BLVD
WEBSTER, TX 77598
Harris County (281) 332-7505
DR. DAVID PAUL GILL MD
Internal Medicine (Hematology & Oncology)
501 MEDICAL CENTER BLVD
WEBSTER, TX 77598
Harris County (281) 332-7505

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 Gary Weiss's NPI number?

The NPI number for Gary Weiss is 1215973961. It was assigned to this individual provider in the NPPES registry on June 21, 2006.

Where is Gary Weiss located?

Gary Weiss practices at 501 Medical Center Blvd, Webster, TX 77598. The listed phone number is (281) 332-7505.

What is Gary Weiss's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Gary Weiss enrolled in Medicare?

Yes. Gary Weiss is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Gary Weiss's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gary Weiss reassigns Medicare benefits to 2 organizations: Texas Oncology PA (Webster, TX) and Texas Tech University Health Sciences Center (El Paso, 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 Gary Weiss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gary Weiss accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 6 other insurers list Gary Weiss 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.

When was this NPI record last updated?

The NPPES record for Gary Weiss was last updated on March 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.