Doctor profile · Federal record

Dr. Adrianne van Norman, DO

Gastroenterology Physician (CMS: Gastroenterology) · Houston, TX

  • NPI 1699137612
  • Accepts Medicare
  • 10 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
18300 Katy Freeway, Medical Building 2, Ste. 425
Houston, TX 77094
(832) 522-8560
fax (832) 522-8561
Additional location
4502 Medical Dr
San Antonio, TX 782294402
(210) 358-3000
Additional location
6414 Fannin St Ste G125
Houston, TX 77030
(713) 704-5910

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
December 13, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Texas #S2686

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1699137612. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
717
Distinct HCPCS
10
Medicare allowed
$94,495
HCPCS Description Services Patients Avg allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 118 116 $132
99214 Established patient office or other outpatient visit, 30-39 minutes 111 85 $130
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 85 51 $120
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 62 49 $80
99213 Established patient office or other outpatient visit, 20-29 minutes 53 47 $92
45380 Biopsy of large bowel using a flexible endoscope 48 47 $156
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 44 44 $181
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 40 40 $90
99204 New patient office or other outpatient visit, 45-59 minutes 40 40 $169
45378 Diagnostic exam of large bowel using a flexible endoscope 32 31 $175

In context: peer comparison

Among 86 peers in this city , average services per provider: 77. This provider delivers 9.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,333
Transactions
63
Manufacturers
14
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 18 $286.28
Lilly USA, LLC 7 $167.04
Salix Pharmaceuticals, a division of Bausch Health US, LLC 8 $155.68
Phathom Pharmaceuticals, Inc. 5 $108.40
Takeda Pharmaceuticals U.S.A., Inc. 4 $98.27
Celgene Corporation 5 $87.12
GENZYME CORPORATION 3 $81.63
Medtronic, Inc. 2 $73.34
AIMMUNE THERAPEUTICS, INC. 4 $65.90
Merit Medical Systems Inc 1 $57.25
Janssen Biotech, Inc. 2 $54.93
AstraZeneca Pharmaceuticals LP 2 $52.55
Ardelyx, Inc. 1 $27.12
EVOKE PHARMA, INC. 1 $17.94

By nature of payment

Food and Beverage
$1,333

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
619
Patients
283
Total drug cost
$81,529
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 189 62 $3,326
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 129 120 $10,363
Dicyclomine Hcl Generic 58 26 $2,916
Linzess (Linaclotide) Brand 33 17 $20,674
Famotidine Generic 30 16 $439
Sutab (Sod Sulf/Pot Chloride/Mag Sulf) Brand 25 25 $4,187
Cholestyramine (Cholestyramine (With Sugar)) Brand 19 0 $2,862
Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) Brand 19 17 $3,400
Loperamide (Loperamide Hcl) Brand 19 0 $176
Zenpep (Lipase/Protease/Amylase) Brand 18 0 $24,842

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Adrianne van Norman's medical specialty?
Dr. Adrianne van Norman practices Gastroenterology Physician in Houston, TX.
Where does Dr. Adrianne van Norman practice?
Dr. Adrianne van Norman practices at 18300 Katy Freeway, Houston, TX 77094. Office phone: 8325228560.
What is Dr. Adrianne van Norman's NPI?
Dr. Adrianne van Norman's National Provider Identifier (NPI) is 1699137612, issued by NPPES.
Does Dr. Adrianne van Norman accept Medicare assignment?
Yes. Dr. Adrianne van Norman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Adrianne van Norman commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.