William C. De La Pena, M.D.
Ophthalmology Physician · Montebello, CA
William C. De La Pena, M.D. is an ophthalmology physician with a practice address in Montebello, California, and NPI 1598784415, issued on Jul 19, 2006. Check the license (California A31272, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William C. De La Pena
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A31272 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2446 W Whittier Blvd, Montebello, CA 90640
- Phone
- (323) 728-5500
- Enumerated
- Jul 19, 2006
- Record last updated
- Aug 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (323) 728-4408
- Entity
- Type 1 · individual
Also registered at 2446 W Whittier Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Richard Foulkes, M.D,Ophthalmology Physician1932312063
- Benjamin Mandel, M.DOphthalmology Physician1396089678
Verify William C. De La Pena in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A31272Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average ophthalmology physician in 2024
32 Medicare Part D claims, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.
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.
11 ophthalmology physician records list a practice address in Montebello
They are 11 of the 728 NPPES records with a practice address in Montebello, and 2,899 ophthalmology physician records in California.
All 11 in Montebello → All 2,899 in California → Every provider in Montebello →
Other ophthalmology physician records in California
- Sam Abbassi, MD, MSWest Hills, CA1881937720
- Richard Abbott, M.D.San Francisco, CA1346276573
- Jean-Paul Abboud, M.D., PH.D.Del Mar, CA1760776728
- Nizar Abdelfattah, MDPasadena, CA1801359393
- Parastou Abedi, MDAliso Viejo, CA1720067333
- Shahla Abedi, MDAliso Viejo, CA1467431072
- Lilit Ablabutyan, M.D.Glendale, CA1497013064
- Nathan Abraham, M.D.Valencia, CA1306224456
- James Abrams, M.D.San Bruno, CA1912903329
- Adam Abroms, MDWestlake Village, CA1497743702
Common questions
What is William C. De La Pena, M.D.'s NPI number?
William C. De La Pena, M.D.'s National Provider Identifier (NPI) is 1598784415, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William C. De La Pena, M.D. located?
The NPPES record lists a practice address at 2446 W Whittier Blvd, Montebello, CA, 90640. Phone: (323) 728-5500. Providers update this record themselves, so call before visiting.
How can I verify William C. De La Pena, M.D.'s license?
NPPES lists California license number A31272, 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 C. De La Pena, M.D. prescribe under Medicare Part D?
In 2024, William C. De La Pena, M.D. had 32 Medicare Part D claims; the average among ophthalmology physician prescribers was 1,518. 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.