H. G. BRENNAN M.D. – NPI #1558396895
Otolaryngology
An otolaryngologist who specializes in the diagnosis and surgical treatment of head and neck conditions.
H. BRENNAN is an otolaryngologist located in NEWPORT BEACH, CA. NPPES has assigned the NPI number 1558396895 to H. BRENNAN on July 12, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 207YX0905X from the Health Care Provider Taxonomy code set, which is classified as Otolaryngology, specializing in Otolaryngology/Facial Plastic Surgery
The NPI profile was last updated on Mar 10, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for H. BRENNAN below.
NPI Profile for
H. G. BRENNAN
(about 20 years ago)
STE. 100
NEWPORT BEACH, CA 92660-7601 Phone: (949) 644-1641 Fax:
STE. 440
LOS ANGELES, CA 90049-5131 Phone: (310) 440-3131 Fax: (310) 472-9582
A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.
| Taxonomy Classification / Specialization | State | License |
|---|---|---|
| 207YX0905X - Otolaryngology / Otolaryngology/Facial Plastic Surgery (Primary) |
CA | C27484 |
The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.