Cosmo Lyle Fraser, MD
Nephrology Physician · Yuba City, CA
Cosmo Lyle Fraser, MD is a nephrology physician with a practice address in Yuba City, California, and NPI 1215026760, issued on Oct 12, 2006. Check the license (California C40203, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cosmo Lyle Fraser
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- C40203 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2115 E Onstott RD, Yuba City, CA 95991
- Phone
- (530) 751-0339
- Enumerated
- Oct 12, 2006
- Record last updated
- Oct 30, 2023
- Fax
- (530) 751-0449
- Medicaid ID
- 00C402030 CA
- Medicare enrollment
- Enrolled (PECOS I20120404000755); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1979
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 2115 E Onstott RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Candice Ocel, NP-CFamily Nurse Practitioner1316643471
Verify Cosmo Lyle Fraser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C40203Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average nephrology physician in 2024
1,078 Medicare Part D claims for 221 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Allopurinol161 claims
- Fludrocortisone Acetate79 claims
- Amlodipine Besylate69 claims
- Furosemide67 claims
- Potassium Chloride46 claims
- Hydralazine Hcl44 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): 18.8 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).
Industry payments in 2024: $104.85
5 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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.
Cosmo Lyle Fraser among 1,468 nephrology physician records in California
Cosmo Lyle Fraser, MD is one of 1,468 nephrology physician records with a practice address in California. 88% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1979 · median 2001 among the 1,128 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in Yuba City → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Raghavender Boothpur, MDYuba City, CA 959911578613543
- Subil Go, MDYuba City, CA 959911104043660
- Hiba Hamdan, M.D.Yuba City, CA 959911487856142
- Venu Kondle, M.D.Yuba City, CA 959911023025863
- Jasminder Momi, MDYuba City, CA 959911952459869
- Marcia McCampbell, M.D.Redding, CA 960011205845765
- Norman Wall, DORedding, CA 960011861416661
- Bruce Bartlow, M.D.Redding, CA 960031316956865
Common questions
What is Cosmo Lyle Fraser, MD's NPI number?
Cosmo Lyle Fraser, MD's National Provider Identifier (NPI) is 1215026760, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cosmo Lyle Fraser, MD located?
The NPPES record lists a practice address at 2115 E Onstott RD, Yuba City, CA, 95991. Phone: (530) 751-0339. Providers update this record themselves, so call before visiting.
How can I verify Cosmo Lyle Fraser, MD's license?
NPPES lists California license number C40203, 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 Cosmo Lyle Fraser, MD prescribe under Medicare Part D?
In 2024, Cosmo Lyle Fraser, MD had 1,078 Medicare Part D claims for 221 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Cosmo Lyle Fraser, MD's MIPS final score?
The 2023 MIPS final score is 18.8 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.