Spencer H. Wenger, MD
Internal Medicine Physician · Hawthorne, CA
Spencer H. Wenger, MD is an internal medicine physician with a practice address in Hawthorne, California, and NPI 1649271040, issued on Aug 9, 2005. Check the license (California A33619, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Spencer H. Wenger
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A33619 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12618 Hawthorne Blvd., Hawthorne, CA 90250
- Phone
- (310) 263-5700
- Enumerated
- Aug 9, 2005
- Record last updated
- Nov 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A336190 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 12618 Hawthorne Blvd.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Maureen Oneill, MDPediatrics Physician1114928744
- Doris Ragland, MDInternal Medicine Physician1760484430
- Jessica Ramirez, M.D.Pediatrics Physician1013208826
Verify Spencer H. Wenger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A33619Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,887 Medicare Part D claims for 325 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Atorvastatin Calcium264 claims
- Metformin Hcl89 claims
- Amlodipine Besylate77 claims
- Rosuvastatin Calcium72 claims
- Losartan Potassium63 claims
- Lisinopril49 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.
Spencer H. Wenger among 17,696 internal medicine physician records in California
Spencer H. Wenger, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 internal medicine physician records list a practice address in Hawthorne
They are 18 of the 818 NPPES records with a practice address in Hawthorne, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Hawthorne → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alfonso Brigham, M.D.Hawthorne, CA 902501902858343
- Jennifer Chiu, M.D.Hawthorne, CA 902501962528430
- Malay Das, MDHawthorne, CA 902501164526224
- Mehmet Demirozu, M.D.Hawthorne, CA 902501295753234
- Valentin Hernandez, M.D.Hawthorne, CA 902501871520320
- Augustine Iluore, MDHawthorne, CA 902501336205442
- Raymond Jing, MDHawthorne, CA 902501518968536
- Mark Kim, M.D.Hawthorne, CA 902501073743621
Common questions
What is Spencer H. Wenger, MD's NPI number?
Spencer H. Wenger, MD's National Provider Identifier (NPI) is 1649271040, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Spencer H. Wenger, MD located?
The NPPES record lists a practice address at 12618 Hawthorne Blvd., Hawthorne, CA, 90250. Phone: (310) 263-5700. Providers update this record themselves, so call before visiting.
How can I verify Spencer H. Wenger, MD's license?
NPPES lists California license number A33619, 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 Spencer H. Wenger, MD prescribe under Medicare Part D?
In 2024, Spencer H. Wenger, MD had 1,887 Medicare Part D claims for 325 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.