Hilary Diamond Mandel, M.D.
Dermatology Physician · Sepulveda, CA
Hilary Diamond Mandel, M.D. is a dermatology physician with a practice address in Sepulveda, California, and NPI 1285669267, issued on Jul 11, 2006. Check the license (California G87885, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hilary Diamond Mandel
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License numbers
- G87885 CA
04-27711 KS
D0063455 MD
117321 MO
59585 NJ
and 1 more
Self-reported in NPPES; status is on the state search - Practice location
- 16111 Plummer St., Sepulveda, CA 91343
- Phone
- (818) 891-7711
- Enumerated
- Jul 11, 2006
- Record last updated
- Jul 13, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 16111 Plummer St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thomas Munn, D.M.D.General Practice Dentistry1669495123
Verify Hilary Diamond Mandel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G87885Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average dermatology physician in 2024
53 Medicare Part D claims for 26 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.
Most prescribed
- Ketoconazole11 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.
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
Other dermatology physician records in California
- Sam Abaza, M.D.Diamond Bar, CA1831148501
- Farah Abdulla, MDDuarte, CA1093934390
- Robert Abergel, M.D.Santa Monica, CA1841565843
- Karen Abisogun, MDLos Angeles, CA1124474515
- Glynis Ablon, M.D.Manhattan Beach, CA1144292889
- Arthur Abrams, MDMountain View, CA1518093178
- Payam Abrishami, MDAgoura Hills, CA1447288147
- Aseel Abu-NasserRedding, CA1609641711
- Rachel Abuav, M.D.Beverly Hills, CA1356481733
- Boya Abudu, MD, MPHSacramento, CA1336608637
Common questions
What is Hilary Diamond Mandel, M.D.'s NPI number?
Hilary Diamond Mandel, M.D.'s National Provider Identifier (NPI) is 1285669267, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hilary Diamond Mandel, M.D. located?
The NPPES record lists a practice address at 16111 Plummer St., Sepulveda, CA, 91343. Phone: (818) 891-7711. Providers update this record themselves, so call before visiting.
How can I verify Hilary Diamond Mandel, M.D.'s license?
NPPES lists California license number G87885, 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 Hilary Diamond Mandel, M.D. prescribe under Medicare Part D?
In 2024, Hilary Diamond Mandel, M.D. had 53 Medicare Part D claims for 26 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.