John Frederick Lewison, MD
Internal Medicine Physician · South Lake Tahoe, CA
John Frederick Lewison, MD is an internal medicine physician with a practice address in South Lake Tahoe, California, and NPI 1497795678, issued on Jun 7, 2006. Check the license (California G146742, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Frederick Lewison
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G146742 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2170 South Ave, South Lake Tahoe, CA 96150
- Phone
- (530) 541-3420
- Enumerated
- Jun 7, 2006
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081205000276); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2170 South Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- B. Patrick BaghdikianAnesthesiology Physician1053417303
- Jeffrey Barbrie, DPTPhysical Therapist1992155527
- Alan Barichievich, MS, PTPhysical Therapist1831254820
Verify John Frederick Lewison in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G146742Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
186 Medicare Part D claims for 65 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Prednisone18 claims
- Famotidine15 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- St Peters HealthHelena, MT · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
John Frederick Lewison among 17,696 internal medicine physician records in California
John Frederick Lewison, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1993 · median 2004 among the 11,065 with a school on file
- Record last updated2018 · 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).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in South Lake Tahoe → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gary Cooper, MDSouth Lake Tahoe, CA 961501487653663
- Oliver Medzihradsky, MDSouth Lake Tahoe, CA 961501972579373
- Meagan Nordstrom, MDSouth Lake Tahoe, CA 961501265052849
- Stefan Schunk, MDSouth Lake Tahoe, CA 961501063473171
- Lisanne Burkholder, MD FACP FRACPTruckee, CA 961611124338116
- Richard GanongTruckee, CA 961611932255403
- Connor LemosTruckee, CA 961611699477067
- Joseph Lombard, MDTruckee, CA 961611821000811
Common questions
What is John Frederick Lewison, MD's NPI number?
John Frederick Lewison, MD's National Provider Identifier (NPI) is 1497795678, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Frederick Lewison, MD located?
The NPPES record lists a practice address at 2170 South Ave, South Lake Tahoe, CA, 96150. Phone: (530) 541-3420. Providers update this record themselves, so call before visiting.
How can I verify John Frederick Lewison, MD's license?
NPPES lists California license number G146742, 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 John Frederick Lewison, MD prescribe under Medicare Part D?
In 2024, John Frederick Lewison, MD had 186 Medicare Part D claims for 65 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John Frederick Lewison, MD's MIPS final score?
The 2023 MIPS final score is 81.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.