P Praxis·MD
● Active Type 1 · Individual

DR. David Christopher Irwin, MD

Radiology·Houston, TX· NPI 1013232065 · Enumerated 2010 · 16 years on NPI
Irwin is 1 of 104 radiology providers in Houston and 1 of 408 in Texas.
NPI age
16 years
Enumerated 2010-04-01
Primary specialty
Radiology
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2021-06-16
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org

How this provider compares

Across 408 active radiology providers in Texas.

NPI age
16 years
↑ 2 yr above median (14 yr)
State licenses
1 state
25% of peers hold multiple states
Subspecialties
1
In the 59% of peers with subspecialties

NPI lifetime · 2010 → 2026

2010-04Enumerated in NPPES
2010 2026

Where they practice

Practice location
1515 Holcombe Blvd
Houston, TX 770304000
📞 7137926161
Mailing address
Po Box 4439
Houston, TX 772104439
📞 7137922991

Additional practice locations

1 secondary location on file with NPPES.

Location 2
7026 Old Katy Rd, Suite 276
Houston, TX 770242133
📞 7136217436fax 7139639051

Specialties

  • Radiology Primary
    A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.
    TX license #P0907 taxonomy 2085R0204X
  • Radiology
    A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
    TX license #P0907 taxonomy 2085R0202X

Identifiers

TypeValueNotes
05 (TX) 358744602
01 (TX) P02403658 RR MEDICARE
01 (TX) 358744603 CSHCN MEDICAID
01 (TX) 8LW233 BCBS

Practice context

Part of a multi-provider practice. 3675 other active providers share this practice address in NPPES.

Recently enumerated nearby: 1 new radiology provider has been added in Houston in the last 180 days. See all →
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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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