Doctor profile · Federal record

Dr. Madeleine Gantz, MD

Dermatology Physician (CMS: Dermatology) · Houston, TX

  • NPI 1821526674
  • Accepts Medicare
  • MIPS 98.3 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 7 locations .

NPPES Updated May 11, 2026
Primary practice
1900 Saint James Pl Ste 600
Houston, TX 770564136
(713) 850-0240
Additional location
12319 N Mopac Expy Ste 100
Austin, TX 787582486
(512) 837-3376
Additional location
13830 Sawyer Ranch RD Ste 304
Dripping Springs, TX 786205514
(512) 829-0009
Show 4 more locations
Additional location
1601 E Pflugerville Pkwy Ste 1102
Pflugerville, TX 786606148
(512) 252-3700
Additional location
3705 Medical Pkwy Ste 340
Austin, TX 787051023
(512) 454-3781
Additional location
3944 S Fm 620, Bldg 6, Ste 201
Bee Cave, TX 78738
(512) 366-8568
Additional location
5145 Fm 620 N Ste B-110
Austin, TX 787321852
(512) 266-0007
Mailing address
1601 E Pflugerville Pkwy Ste 1102
Pflugerville, TX 786606148

Credentials & registration

NPPES · NUCC
NPI registered
May 2017 — 9 yrs on file
Profile last updated
July 25, 2022
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207N00000X — NUCC code
State license (1)
Texas #T0487

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1821526674. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
330
Distinct HCPCS
10
Medicare allowed
$20,982
HCPCS Description Services Patients Avg allowed
17003 Destruction of precancer skin growth, 2-14 growths 108 24 $7
99213 Established patient office or other outpatient visit, 20-29 minutes 46 45 $88
17000 Destruction of precancer skin growth, 1 growth 37 35 $54
11102 Biopsy of related skin growth, first growth 31 30 $89
99214 Established patient office or other outpatient visit, 30-39 minutes 24 21 $125
99203 New patient office or other outpatient visit, 30-44 minutes 22 22 $109
17110 Destruction of skin growth, 1-14 growths 20 19 $113
99212 Established patient office or other outpatient visit, 10-19 minutes 15 14 $57
11103 Biopsy of related skin growth, each additional growth 14 12 $52
99204 New patient office or other outpatient visit, 45-59 minutes 13 13 $167

In context: peer comparison

Among 44 peers in Houston Dermatology Physician, average services per provider: 163. This provider delivers 2.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$841
Transactions
19
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 13 $477.00
Galderma Laboratories, L.P. 4 $145.46
Merz North America, INC. 1 $138.34
Sanofi-Aventis U.S. LLC 1 $79.99

By nature of payment

Food and Beverage
$761
Education
$80

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
45
Patients
28
Total drug cost
$1,143
Drug Type Claims Patients Total cost
Ketoconazole Generic 20 16 $401
Triamcinolone Acetonide Generic 13 12 $159
Clobetasol Propionate Generic 12 0 $582

Frequently asked questions

Auto-generated from federal data
What is Dr. Madeleine Gantz's medical specialty?
Dr. Madeleine Gantz practices Dermatology Physician in Houston, TX.
Where does Dr. Madeleine Gantz practice?
Dr. Madeleine Gantz practices at 1900 Saint James Pl Ste 600, Houston, TX 770564136. Office phone: 7138500240.
What is Dr. Madeleine Gantz's NPI?
Dr. Madeleine Gantz's National Provider Identifier (NPI) is 1821526674, issued by NPPES.
Does Dr. Madeleine Gantz accept Medicare assignment?
Yes. Dr. Madeleine Gantz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Madeleine Gantz commonly perform?
Top Medicare-reported procedures in 2023: Destruction of precancer skin growth, 2-14 growths (HCPCS 17003); Established patient office or other outpatient visit (HCPCS 99213); Destruction of precancer skin growth, 1 growth (HCPCS 17000). Source: CMS Medicare Physician & Other Practitioners file.