Physician Profile
Omar I. Madriz, M.D. practices colon & rectal surgery in Houston, TX. Omar is a 1995 graduate of Baylor College of Medicine. According to Medicare claims data, Omar cared for 274 Medicare patients across 312 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, diagnostic exam of rectum and lower large bowel using an endoscope, and diagnostic exam of anus using an endoscope.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
915 GESSNER RD STE 725
Houston, TX 77024
23920 Katy Fwy Suite 580
Katy, TX 77494
312 services · 274 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of rectum and lower large bowel using an endoscope | Procedure | 45300 |
43 | More often than most peers in Colon & Rectal Surgery |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
39 | As often as other peers in Colon & Rectal Surgery |
| Removal of external hemorrhoids by rubber banding | Procedure | 46221 |
26 | As often as other peers in Colon & Rectal Surgery |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
22 | As often as other peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
57 | More often than most peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
28 | As often as other peers in Colon & Rectal Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
28 | As often as other peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
23 | As often as other peers in Colon & Rectal Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
17 | Less often than most peers in Colon & Rectal Surgery |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
15 | As often as other peers in Colon & Rectal Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Omar I. Madriz is a colorectal surgeon in Houston, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Colon & Rectal Surgery”.
NPI registry
Omar I. Madriz is listed at 915 Gessner Rd Ste 725, Houston, TX 77024. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (713) 486-4680. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Omar I. Madriz's National Provider Identifier is 1598871204. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Omar I. Madriz attended Baylor College of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
Omar I. Madriz has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Omar I. Madriz performs procedures including diagnostic exam of rectum and lower large bowel using an endoscope, diagnostic exam of anus using an endoscope and removal of external hemorrhoids by rubber banding, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Omar I. Madriz. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.