William K. Reilly, MD
Geriatric Medicine (Family Medicine) Physician · Los Angeles, CA
William K. Reilly, MD is a geriatric medicine (family medicine) physician with a practice address in Los Angeles, California, and NPI 1407923402, issued on Nov 29, 2006. Check the license (California C36824, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William K. Reilly
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Family Medicine) Physician 207QG0300X
- License number
- C36824 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4733 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 783-4011
- Enumerated
- Nov 29, 2006
- Record last updated
- Sep 23, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (family medicine) physician records → All 243 in California → Look up another NPI →
Also registered at 4733 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Antoine Abcar, MDNephrology Physician1245301159
- Iman Abdalla, MDHematology & Oncology Physician1730248311
- Joseph Abu-Dalu, MDVascular Surgery Physician1821157587
- Isaac Abusleme, M.D.Internal Medicine Physician1891109468
- Nancy Adachi, PTPhysical Therapist1902004245
- Sangeeta Aggarwal, MDInternal Medicine Physician1578655908
Verify William K. Reilly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C36824Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024
37 Medicare Part D claims, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Trazodone Hcl15 claims
- Simvastatin13 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.
William K. Reilly among 243 geriatric medicine (family medicine) physician records in California
William K. Reilly, MD is one of 243 geriatric medicine (family medicine) physician records with a practice address in California. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 53% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 46% of these records are
- Record last updated2008 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Family Medicine) Physician providers in California
There are 243 geriatric medicine (family medicine) physician records in California.
All 243 in California → Every provider in Los Angeles → Geriatric Medicine (Family Medicine) Physician nationwide →
The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes
- David Chang, MDLos Angeles, CA 900271801968136
- Andrea CiseLos Angeles, CA 900271700297710
- Peter Khang, MDLos Angeles, CA 900271609947670
- Eric KimLos Angeles, CA 900271275096489
- Kuo-Wei Lee, MDLos Angeles, CA 900271710047972
- Mario Milch, MDLos Angeles, CA 900271164599189
- Parmis Pouya, MDLos Angeles, CA 900271174690051
- Allegra Rich, MDLos Angeles, CA 900271669549499
Common questions
What is William K. Reilly, MD's NPI number?
William K. Reilly, MD's National Provider Identifier (NPI) is 1407923402, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William K. Reilly, MD located?
The NPPES record lists a practice address at 4733 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 783-4011. Providers update this record themselves, so call before visiting.
How can I verify William K. Reilly, MD's license?
NPPES lists California license number C36824, 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 William K. Reilly, MD prescribe under Medicare Part D?
In 2024, William K. Reilly, MD had 37 Medicare Part D claims; the average among geriatric medicine (family medicine) physician prescribers was 5,222. 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.