Michael Napolitano, DO
General Practice Physician · Westlake Village, CA
Michael Napolitano, DO is a general practice physician with a practice address in Westlake Village, California, and NPI 1871238907, issued on May 3, 2022. Check the license (California 20A22389, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Napolitano
- Credential
- DO
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 20A22389 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5743 Corsa Ave Ste 120, Westlake Village, CA 91362
- Phone
- (805) 244-4988
- Enumerated
- May 3, 2022
- Entity
- Type 1 · individual
Verify Michael Napolitano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A22389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
89% fewer Medicare Part D claims than the average general practice physician in 2024
330 Medicare Part D claims for 67 beneficiaries, against an average of 2,957 among the 8,605 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Bupropion Xl15 claims
- Hydrocodone-Acetaminophen12 claims
- Trazodone Hcl12 claims
- Aripiprazole11 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.
Industry payments in 2024: $242.58
11 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 4,601 providers of this specialty with any payment received $1,297.26 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
General Practice Physician providers in California
There are 1,869 general practice physician records in California.
All 1,869 in California → Every provider in Westlake Village →
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- Kenric Aban, M.D.Oceanside, CA1336218023
- Tahira Abbasi, MDLa Jolla, CA1619062346
- Ryan Abbott, M.D.Los Angeles, CA1194016030
- Adel Abdelsayed, M.D.Huntington Park, CA1922164961
- Brittany Abeldt, MDOakland, CA1982353884
- Ilona Abraham, MDEncino, CA1700939576
- Jerry Abraham, MD, MPH, CMQLos Angeles, CA1932514874
- Azniv Abrahamian, M.D.North Hollywood, CA1033270293
Common questions
What is Michael Napolitano, DO's NPI number?
Michael Napolitano, DO's National Provider Identifier (NPI) is 1871238907, issued on May 3, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Michael Napolitano, DO located?
The NPPES record lists a practice address at 5743 Corsa Ave Ste 120, Westlake Village, CA, 91362. Phone: (805) 244-4988. Providers update this record themselves, so call before visiting.
How can I verify Michael Napolitano, DO's license?
NPPES lists California license number 20A22389, 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 Michael Napolitano, DO prescribe under Medicare Part D?
In 2024, Michael Napolitano, DO had 330 Medicare Part D claims for 67 beneficiaries; the average among general practice physician prescribers was 2,957. 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.