Winifred Myrna Loesch, MD
Family Medicine Physician · Nevada City, CA
Winifred Myrna Loesch, MD is a family medicine physician with a practice address in Nevada City, California, and NPI 1891761854, issued on Feb 28, 2006. Check the license (California C42292, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Winifred Myrna Loesch
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C42292 CA
Self-reported in NPPES; status is on the state search - Practice location
- 590 Searls Ave, Nevada City, CA 95959
- Phone
- (530) 798-5003
- Enumerated
- Feb 28, 2006
- Record last updated
- Aug 19, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (530) 271-2338
- Medicaid ID
- OOC422920 CA
- Medicare enrollment
- Enrolled (PECOS I20101018000729); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 1970
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 590 Searls Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Barnes, M.D.Family Medicine Physician1164484317
- Ann Heinrich, LMFTMarriage & Family Therapist1679605034
Verify Winifred Myrna Loesch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C42292Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average family medicine physician in 2024
5,302 Medicare Part D claims for 315 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 340 claims were for opioids.
Most prescribed
- Levothyroxine Sodium296 claims
- Losartan Potassium221 claims
- Atorvastatin Calcium209 claims
- Hydrocodone-Acetaminophen181 claims
- Zolpidem Tartrate128 claims
- Amlodipine Besylate125 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 MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Winifred Myrna Loesch among 17,133 family medicine physician records in California
Winifred Myrna Loesch, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1970 · median 2005 among the 10,652 with a school on file
- Record last updated2010 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 family medicine physician records list a practice address in Nevada City
They are 6 of the 590 NPPES records with a practice address in Nevada City, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Nevada City → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Robert Barnes, M.D.Nevada City, CA 959591164484317
- Laird Caruthers, M.D.Nevada City, CA 959591396925541
- Veronica Daggett, DONevada City, CA 959591205039732
- Laura Hermann, FNPNevada City, CA 959591255529632
- George Scarmon, M.D.Nevada City, CA 959591538144258
- Kaneshka Alamshahi, MDOlivehurst, CA 959611346510419
- Harpreet Johl, MDOlivehurst, CA 959611053423202
- Huy Phung, M.D.Olivehurst, CA 959611356443485
Common questions
What is Winifred Myrna Loesch, MD's NPI number?
Winifred Myrna Loesch, MD's National Provider Identifier (NPI) is 1891761854, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Winifred Myrna Loesch, MD located?
The NPPES record lists a practice address at 590 Searls Ave, Nevada City, CA, 95959. Phone: (530) 798-5003. Providers update this record themselves, so call before visiting.
How can I verify Winifred Myrna Loesch, MD's license?
NPPES lists California license number C42292, 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 Winifred Myrna Loesch, MD prescribe under Medicare Part D?
In 2024, Winifred Myrna Loesch, MD had 5,302 Medicare Part D claims for 315 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Winifred Myrna Loesch, MD's MIPS final score?
The 2023 MIPS final score is 83.3 of 100. 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.