Doctor profile · Federal record

Dr. Oliver Gantz, M.D.

Otolaryngology Physician (CMS: Otolaryngology) · Student in an Organized Health Care Education/Training Program · Thousand Oaks, CA

  • NPI 1952758260
  • Accepts Medicare
  • MIPS 85.0 / 100 · 2023
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
100 Moody CT Ste 200
Thousand Oaks, CA 913606082
(805) 418-3500
Additional location
1540 Alcazar Street, Suite 204
Los Angeles, CA 90033
(323) 442-4830
Additional location
27235 Tourney RD Ste 2500
Santa Clarita, CA 913555908
(661) 253-5851
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
September 30, 2020
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207Y00000X — NUCC code
State license (1)
California #147332

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1952758260. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,294
Distinct HCPCS
10
Medicare allowed
$149,327
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 368 261 $99
69210 Removal of impacted ear wax 202 166 $49
99203 New patient office or other outpatient visit, 30-44 minutes 169 169 $122
99214 Established patient office or other outpatient visit, 30-39 minutes 152 126 $140
31575 Diagnostic exam of voice box using a flexible endoscope 108 104 $145
31231 Diagnostic exam of nasal passages using an endoscope 85 72 $215
92504 Exam of ear using a microscope 82 67 $34
99204 New patient office or other outpatient visit, 45-59 minutes 68 68 $182
31579 Exam to assess movement of vocal cord flaps using an endoscope 21 19 $226
92524 Analysis of voice and resonance production 20 18 $120

In context: peer comparison

Among 5 peers in this city , average services per provider: 150. This provider delivers 8.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
591
Patients
234
Total drug cost
$18,729
Drug Type Claims Patients Total cost
Fluticasone Propionate Generic 192 79 $3,755
Ipratropium Bromide Generic 133 57 $7,148
Azelastine Hcl Generic 114 49 $4,569
Famotidine Generic 82 33 $1,383
Pantoprazole Sodium Generic 24 0 $576
Fluocinolone Acetonide Oil Generic 17 16 $779
Montelukast Sodium Generic 15 0 $217
Omeprazole Generic 14 0 $304

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Oliver Gantz's medical specialty?
Dr. Oliver Gantz practices Otolaryngology Physician in Thousand Oaks, CA.
Where does Dr. Oliver Gantz practice?
Dr. Oliver Gantz practices at 100 Moody CT Ste 200, Thousand Oaks, CA 913606082. Office phone: 8054183500.
What is Dr. Oliver Gantz's NPI?
Dr. Oliver Gantz's National Provider Identifier (NPI) is 1952758260, issued by NPPES.
Does Dr. Oliver Gantz accept Medicare assignment?
Yes. Dr. Oliver Gantz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Oliver Gantz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Removal of impacted ear wax (HCPCS 69210); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.