OLIVER HOLGER GANTZ M.D.
NPI 1952758260
Otolaryngology in Thousand Oaks, CA
About Oliver Holger Gantz M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OLIVER HOLGER GANTZ M.D. (NPI 1952758260) is an individual otolaryngology provider in Thousand Oaks, California, licensed in California (147332) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Oliver Holger Gantz M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Oliver Gantz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 37 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 10
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91360 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
THOUSAND OAKS, CA 91360
THOUSAND OAKS, CA 91360
THOUSAND OAKS, CA 91360
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Oliver Gantz's NPI number?
The NPI number for Oliver Gantz is 1952758260. It was assigned to this individual provider in the NPPES registry on May 17, 2016.
Where is Oliver Gantz located?
Oliver Gantz practices at 100 Moody Ct Ste 200, Thousand Oaks, CA 91360. The listed phone number is (805) 418-3500.
What is Oliver Gantz's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Oliver Gantz enrolled in Medicare?
Yes. Oliver Gantz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Oliver Gantz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Oliver Gantz reassigns Medicare benefits to The Regents Of The University Of California (Los Angeles, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Oliver Gantz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Oliver Gantz was last updated on September 30, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Oliver Holger Gantz, M.D. · NPI 1952758260
Otolaryngology physician in Thousand Oaks, California. Individual provider, active in the CMS NPPES registry since May 17, 2016.
## Identity
- **NPI:** 1952758260 (Entity type: Individual)
- **Enumerated:** May 17, 2016
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** 147332 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 MOODY CT STE 200, Thousand Oaks, CA 91360-6082
- **Phone:** (805) 418-3500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Regents Of The University Of California (NPI 1619935251, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** September 30, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1952758260) · Data from the CMS NPPES public registry.