Doctor profile · Federal record

Dr. Cosmo Fraser, MD

Nephrology Physician (CMS: Nephrology) · Yuba City, CA

  • NPI 1215026760
  • Accepts Medicare
  • MIPS 18.8 / 100 · 2023
  • 47 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2115 E Onstott RD
Yuba City, CA 959911556
(530) 751-0339
fax (530) 751-0449
Mailing address
220 Standiford Ave, Ste F
Modesto, CA 953501159

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
October 30, 2023
Year of graduation
1979 — 47 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
California #C40203
Medicaid
CA #00C402030

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215026760. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,394
Distinct HCPCS
10
Medicare allowed
$750,131
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 1,447 228 $119
99214 Established patient office or other outpatient visit, 30-39 minutes 998 379 $129
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 907 103 $353
90935 Hemodialysis procedure with physician evaluation 498 83 $71
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 354 237 $174
99215 Established patient office or other outpatient visit, 40-54 minutes 69 61 $182
99204 New patient office or other outpatient visit, 45-59 minutes 44 44 $169
99291 Critical care, first 30-74 minutes 37 31 $211
90937 Hemodialysis procedure requiring repeated evaluation 24 21 $102
99213 Established patient office or other outpatient visit, 20-29 minutes 16 16 $92

In context: peer comparison

Among 4 peers in this city , average services per provider: 230. This provider delivers 19× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$105
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Ardelyx, Inc. 3 $60.40
CorMedix Inc. 1 $26.37
AstraZeneca Pharmaceuticals LP 1 $18.08

By nature of payment

Food and Beverage
$105

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
976
Patients
285
Total drug cost
$70,120
Drug Type Claims Patients Total cost
Allopurinol Generic 250 69 $4,487
Amlodipine Besylate Generic 104 29 $917
Fludrocortisone Acetate Generic 104 25 $2,353
Furosemide Generic 74 20 $749
Hydralazine Hcl Generic 61 21 $1,079
Sevelamer Carbonate Generic 46 13 $12,719
Clonidine Hcl Generic 45 15 $563
Gabapentin Generic 43 0 $768
Potassium Chloride Generic 43 13 $1,221
Calcium Acetate Generic 42 16 $5,154

Frequently asked questions

Auto-generated from federal data
What is Dr. Cosmo Fraser's medical specialty?
Dr. Cosmo Fraser practices Nephrology Physician in Yuba City, CA.
Where does Dr. Cosmo Fraser practice?
Dr. Cosmo Fraser practices at 2115 E Onstott RD, Yuba City, CA 959911556. Office phone: 5307510339.
What is Dr. Cosmo Fraser's NPI?
Dr. Cosmo Fraser's National Provider Identifier (NPI) is 1215026760, issued by NPPES.
Does Dr. Cosmo Fraser accept Medicare assignment?
Yes. Dr. Cosmo Fraser accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cosmo Fraser commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960). Source: CMS Medicare Physician & Other Practitioners file.