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DR. THOMAS STEPHEN BRENNAN MD
NPI 1215937255
Internal Medicine - Nephrology in Houston, TX

Active since July 29, 2005PECOS Enrolled
1415 LA CONCHA LN, HOUSTON, TX 77054(713) 790-9080(713) 790-1664 Get Directions Write a Review

NPPES record last updated: October 26, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Thomas Stephen Brennan Md NPPES

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

DR. THOMAS STEPHEN BRENNAN MD (NPI 1215937255) is an individual nephrology provider in Houston, Texas, licensed in Texas (H1743) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1215937255
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. THOMAS STEPHEN BRENNANCredential: MD
Location Address1415 LA CONCHA LNHouston, TX 77054-1801
Mailing Address242 Blalock RdHouston, TX 77024-7307 · (713) 975-7542 · Fax (713) 789-3847
Phone(713) 790-9080
Fax(713) 790-1664
Sole ProprietorNo
Enumeration DateJuly 29, 2005
Last NPPES UpdateOctober 26, 2007
✔ NPI 1215937255 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in TX · H1743
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1415 LA CONCHA LN, Houston, TX 77054
Open in Google Maps ↗

Other Identifiers 4

Medicare UPINE38992TX
Other8637K3TX · Blue Cross Blue Shield
MedicaidPO8637K37TX
Medicare PIN8637K3TX

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Thomas Stephen Brennan 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 Reassignment

Medicare enrollment records show Thomas Brennan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Nephrology Dialysis And Transplantation Associates PA
1.4 mi
Nephrology
6560 FANNIN ST STE 1824
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 19 clinicians in this Medicare group
NPI 1437104429 (713) 790-9080

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 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.

New Patient
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
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.

Reported Quality Measures

Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
75%297 patients2/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
100%115 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
2%48 patients1/55-star benchmark: 99%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
14%155 patients1/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 73% · 119 patients
76%119 patients
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
44%48 patients2/55-star benchmark: 100%
Use of High-Risk Medications in the Elderly
Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication.
Lower rates are better for this measure.
Patients 2+: 2% · 66 patients
2%66 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
10 suppliers44 claims4,920 services$0.31 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
6 suppliers47 claims9,240 services$0.19 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
13 suppliers51 claims51 services$18.97 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
11 suppliers38 claims40 services$11.66 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

DR. WADI N SUKI MD
Internal Medicine (Nephrology)
1415 LA CONCHA LN
HOUSTON, TX 77054
Harris County (713) 790-9080
FARAZ M KHAN MD
Internal Medicine (Nephrology)
1415 LA CONCHA LN
HOUSTON, TX 77054
Harris County (713) 790-9080
DR. BINH T NGUYEN MD
Internal Medicine (Nephrology)
1415 LA CONCHA LN
HOUSTON, TX 77054
Harris County (713) 790-9080

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 Thomas Brennan's NPI number?

The NPI number for Thomas Brennan is 1215937255. It was assigned to this individual provider in the NPPES registry on July 29, 2005.

Where is Thomas Brennan located?

Thomas Brennan practices at 1415 La Concha Ln, Houston, TX 77054. The listed phone number is (713) 790-9080.

What is Thomas Brennan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Thomas Brennan enrolled in Medicare?

Yes. Thomas Brennan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Thomas Brennan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Brennan reassigns Medicare benefits to Nephrology Dialysis And Transplantation Associates PA (Houston, TX). The 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 Thomas Brennan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Thomas Brennan was last updated on October 26, 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.