H. Brennan, M.D.
Otolaryngology/Facial Plastic Surgery Physician · Newport Beach, CA
H. Brennan, M.D. is an otolaryngology/facial plastic surgery physician with a practice address in Newport Beach, California, and NPI 1558396895, issued on Jul 12, 2006. Check the license (California C27484, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- H. Brennan
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology/Facial Plastic Surgery Physician 207YX0905X
- License number
- C27484 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Newport Center Dr, Newport Beach, CA 92660
- Phone
- (949) 644-1641
- Enumerated
- Jul 12, 2006
- Entity
- Type 1 · individual
Also registered at 400 Newport Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Barber, MDObstetrics & Gynecology Physician1336257138
- Michael Barnes, DDSDentist1801002787
- Susan Cederstrom, M.D.Internal Medicine Physician1578529012
- John Chiu, MDAllergy & Immunology Physician1326121716
- H Chun, MDPlastic Surgery Physician1902961691
- Tanya Foreman, M.D.MOHS-Micrographic Surgery Physician1497706113
Verify H. Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C27484Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
95% fewer Medicare Part D claims than the average otolaryngology/facial plastic surgery physician in 2024
31 Medicare Part D claims for 11 beneficiaries, against an average of 601 among the 593 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Otolaryngology/Facial Plastic Surgery Physician providers in California
There are 103 otolaryngology/facial plastic surgery physician records in California.
Other otolaryngology/facial plastic surgery physician records in California
- Esrafil Abedi, MDLaguna Hills, CA1093794604
- David Alessi, MDBeverly Hills, CA1477588721
- William Anderson, MDTurlock, CA1366490724
- Anwuli Anyah, D.O.Modesto, CA1407238835
- Behrad Aynehchi, M.D.Culver City, CA1275709040
- Babak Azizzadeh, MDBeverly Hills, CA1124051172
- Corliss Best, MDOrange, CA1821720129
- George Boris, MDCulver City, CA1699833996
- Lorenzo Brown, MDInglewood, CA1770594749
- Ryan Casserly, MDMonterey, CA1114344025
Common questions
What is H. Brennan, M.D.'s NPI number?
H. Brennan, M.D.'s National Provider Identifier (NPI) is 1558396895, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is H. Brennan, M.D. located?
The NPPES record lists a practice address at 400 Newport Center Dr, Newport Beach, CA, 92660. Phone: (949) 644-1641. Providers update this record themselves, so call before visiting.
How can I verify H. Brennan, M.D.'s license?
NPPES lists California license number C27484, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does H. Brennan, M.D. prescribe under Medicare Part D?
In 2024, H. Brennan, M.D. had 31 Medicare Part D claims for 11 beneficiaries; the average among otolaryngology/facial plastic surgery physician prescribers was 601. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.