NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1215026760 MD
Verify on CMS → Cosmo Fraser, MD
Nephrology Physician in Yuba City, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,806 in Nephrology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 221 beneficiaries · Nephrology Physician avg: 2K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
18.8/100
▼ 65 pts below national avg 83.5 · Below average
Industry payments
$104.85
5 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Cosmo Fraser, MD reported a CMS MIPS final score of 18.8/100 - below the 83.5 national average - and filed 1,078 Medicare Part D claims in 2024.
- 18.8/100
- MIPS score · -65 vs avg
- 1K
- Part D claims, 2024
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Cosmo Fraser, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1215026760), first enumerated 10/12/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,078 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 18.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Industry payment transparency
$104.85 in reported industry payments (5 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Cosmo Fraser, MD's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1215026760 · Nephrology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-LOW · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1215026760
- ENUM-LEGACY 2006
- TAX-MID 11K Nephrology Physician
- MIPS-LOW 18.8/100
- RX-MID 1,078
- BOOK-LIGHT 1,165 in California
- PHOTO-FINISH Chokri Alioua · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Fraser · this pr…
Fraser · this provider
18.8 MIPS pts
- Jonathan Zuniga,…
Jonathan Zuniga, M.D.
18.8 MIPS pts
- Chokri Alioua · …
Chokri Alioua
18.8 MIPS pts
- Tony Leung, MD ·…
Tony Leung, MD
18.9 MIPS pts
- Helga Vamenta-Mo…
Helga Vamenta-Morris, M.D.
18.9 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Cosmo Fraser, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
19 ≥ 2nd percentile 2% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Cosmo Fraser, MD sits
This provider among nephrology physician peers
Across the 2,230 nephrology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Cosmo Fraser, MD writes more Part D claims than 51% of them and scores higher on MIPS quality than 8% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one nephrology physician peer from a representative sample of 60; the gold marker is Cosmo Fraser, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Cosmo Fraser, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Cosmo Fraser, MD?
Below national averagePrimary specialty
Nephrology Physician
Medicare Part D claims
1,078 29% vs specialty avg
MIPS final score
18.8/100 64.7 pts vs avg
Specialty distribution in California
How Nephrology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Cosmo Fraser, MD's 2023 MIPS final score plotted against the Nephrology Physician national average
- MIPS Final Score
- 18.8/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1215026760 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/12/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
18.8127
Final Score
Measured-score avg: 83.5
0
Quality
62.7091
Cost
Reporting: Individual
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Cosmo Fraser, MD. Source: openpaymentsdata.cms.gov.
Total received
$105
Largest payer
Ardelyx, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - California MBC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Cosmo Fraser, MD. To verify Cosmo Fraser, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Cosmo Fraser, MD - brand share 9.0%
Nephrology Physician average
9% brand-name claims vs 91% generic, on 1,078 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,078
Total Claims
$112K
Total Drug Cost
221
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,019.7
- Total Day Supply
- 57,907
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $77K
- Generic Drug Cost
- $35K
- Antibiotic Claims
- 65
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 3.99
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 44, 65-74: 76, 75-84: 74, 85+: 27
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Cosmo Fraser, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Allopurinol
Allopurinol
161 claims
- Fludrocortisone Ac…
Fludrocortisone Acetate
79 claims
- Amlodipine Besylate
Amlodipine Besylate
69 claims
- Furosemide
Furosemide
67 claims
- Potassium Chloride 46
Potassium Chloride
46 claims
- Hydralazine Hcl 44
Hydralazine Hcl
44 claims
- Cinacalcet Hcl 38
Cinacalcet Hcl
38 claims
- Calcium Acetate 30
Calcium Acetate
30 claims
| Drug | Claims |
|---|---|
| Allopurinol | 161 |
| Fludrocortisone Acetate | 79 |
| Amlodipine Besylate | 69 |
| Furosemide | 67 |
| Potassium Chloride | 46 |
| Hydralazine Hcl | 44 |
| Cinacalcet Hcl | 38 |
| Calcium Acetate | 30 |
| Levofloxacin | 30 |
| Clonidine Hcl | 28 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Cosmo Fraser, MD fits within the Nephrology Physician landscape nationally.
10,806
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,511
Avg Claims per Provider
Cosmo Fraser, MD's 1,078 claims are below the specialty average of 1,511.
Nationwide Nephrology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Fraser, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (18.8 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nephrology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Fraser.
One of 1,165 Nephrology Physician providers enrolled in California, 5 are shown here.
Dr. Antoine Abcar
MD
Los Angeles, CA
Dr. Basmah Abdalla
M.D.
Los Angeles, CA
Dr. Omaran Abdeen
M.D.
Mission Hills, CA
Dr. Anas Abou-Ismail
MD
Palm Springs, CA
Dr. Sreedhar Adapa
M.D.
Visalia, CA
Compare Nephrology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Cosmo Fraser, MD's specialty? ▼
Cosmo Fraser, MD specializes in Nephrology Physician and practices in Yuba City, California. Credentials: MD.
How much does Cosmo Fraser, MD prescribe under Medicare Part D? ▼
In 2024, Cosmo Fraser, MD wrote 1,078 Medicare Part D claims totaling $112K in drug costs for 221 beneficiaries.
What is Cosmo Fraser, MD's Medicare quality score? ▼
Cosmo Fraser, MD has a CMS MIPS Final Score of 18.8/100 (Quality: 0, Cost: 62.7). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Cosmo Fraser, MD located? ▼
Cosmo Fraser, MD is located at 2115 E ONSTOTT RD, Yuba City, CA, 95991. Phone: (530) 751-0339.
What is Cosmo Fraser, MD's NPI number? ▼
Cosmo Fraser, MD's National Provider Identifier (NPI) is 1215026760, issued on 10/12/2006.
Does Cosmo Fraser, MD prescribe more brand-name or generic drugs? ▼
Cosmo Fraser, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $77K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,806 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,511 Medicare Part D claims per year.
What drugs does Cosmo Fraser, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Cosmo Fraser, MD's most frequently prescribed drugs include Allopurinol, Fludrocortisone Acetate, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cosmo Fraser, MD accept Medicare? ▼
Cosmo Fraser, MD appears in CMS Medicare data with 1,078 Part D claims and 221 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cosmo Fraser, MD's credentials? ▼
Cosmo Fraser, MD's NPI is 1215026760 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.