Brian Duffy
Internal Medicine · Houston, TX
At a glance
1201 Fannin St Ste 262, Houston, TX 77002-6943
NPPES record updated May 22, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
1201 Fannin St Ste 262Houston, TX 77002-6943
Additional reported practice locations
5323 Harry Hines BlvdDallas, TX 753907201
Phone: 2146489741
Education & affiliations
- Medical / professional school
- University Of Texas Southwestern Medical School At Dallas
- Graduation year
- 2021
- CMS specialties
- Internal Medicine
Practice groups
Reported hospital affiliations
- Parkland Health & Hospital System Dallas, TX
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Internal Medicine
- Taxonomy code
- 207R00000X
- Enumeration date
- Mar 20, 2018
- Record updated
- May 22, 2026
More registry details
- Provider type
- Individual · Type 1
Reported taxonomies and licenses
207R00000X
License reported: 53499 AL
207R00000X · Primary
License reported: T0772 TX
207R00000X
License reported: 80203 AZ
207R00000X
License reported: C1-0029319 DE
207R00000X
License reported: MD-26705 HI
207R00000X
License reported: 77156 TN
207R00000X
License reported: 01099404A IN
207R00000X
License reported: CDR.0006624 CO
207R00000X
License reported: 2026-01212 NC
207R00000X
License reported: MD70104739 WA
207R00000X
License reported: 47649 OK
207R00000X
License reported: 110890 GA
207R00000X
License reported: 14275320-1235 UT
207R00000X
License reported: 2026012934 MO
207R00000X
License reported: MD-56655 IA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1201 Fannin St Ste 262Houston, TX 77002-6943
- Phone
- (866) 849-0692
Mailing address
PO BOX 211699EAGAN, MN 551213699
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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