NPPES file of Aug 9, 2026

Lou Nishimura, M.D.

Internal Medicine Physician · Carmichael, CA

Lou Nishimura, M.D. is an internal medicine physician with a practice address in Carmichael, California, and NPI 1831207315, issued on Aug 26, 2006. Check the license (California G46283, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831207315
Name
Lou Nishimura
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G46283 CA
Self-reported in NPPES; status is on the state search
Practice location
6500 Coyle Ave, Carmichael, CA 95608
Phone
(916) 967-4030
Enumerated
Aug 26, 2006
Record last updated
Dec 1, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(916) 967-4060
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 6500 Coyle Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Elicia AlvaradoPrimary Care Nurse Practitioner1265384291
  2. Camelia Cifor, D.D.S.General Practice Dentistry1750609806
  3. Victor Hawkins, DDSDentist1669649240
  4. John Henson, D.D.S.Pediatric Dentistry1679785307
  5. Raquel Livoni, MDFamily Medicine Physician1679730956

Verify Lou Nishimura in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G46283
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

100% fewer Medicare Part D claims than the average internal medicine physician in 2024

14 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Lou Nishimura14
  2. Specialty average3,176

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.

35 internal medicine physician records list a practice address in Carmichael

They are 35 of the 1,440 NPPES records with a practice address in Carmichael, and 17,696 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Lou Nishimura, M.D.'s NPI number?

Lou Nishimura, M.D.'s National Provider Identifier (NPI) is 1831207315, issued on Aug 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lou Nishimura, M.D. located?

The NPPES record lists a practice address at 6500 Coyle Ave, Carmichael, CA, 95608. Phone: (916) 967-4030. Providers update this record themselves, so call before visiting.

How can I verify Lou Nishimura, M.D.'s license?

NPPES lists California license number G46283, 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 Lou Nishimura, M.D. prescribe under Medicare Part D?

In 2024, Lou Nishimura, M.D. had 14 Medicare Part D claims; 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.