2026 NPPES data Nephrology Physician NPI 1962423590 M.D.
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VICTOR WASSILY, M.D.

Nephrology Physician in MONTEBELLO, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
13K
Medicare Part D claims · 427 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
69.5268/100
▼ 14 pts below national avg 83.1 · [object Object]
Industry payments
$102.74
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

VICTOR WASSILY, M.D. reported a CMS MIPS final score of 69.5268/100 — below the 83.1 national average — and filed 13,257 Medicare Part D claims in 2023.

69.5268/100
MIPS score · -14 vs avg
13K
Part D claims, 2023
85%
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.

VICTOR WASSILY, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

70 8th percentile higher than 8% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). This entry sits in this band. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

VICTOR WASSILY, M.D. 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 VICTOR WASSILY, M.D.?

Below national average

NPI registry status

Active

Issued 07/21/2006

NPI 1962423590

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

13,257 812% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

MIPS final score

69.5268/100 13.5732% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in California

How Nephrology Physician compares to other specialties among California providers

California providers

Nephrology Physician share within California

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within California

Medicare quality performance — MIPS

VICTOR WASSILY, M.D.'s 2023 MIPS final score plotted against the Nephrology Physician national average

Below national average
MIPS Final Score
69.5268/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Nephrology Physician) — 69.5268/100 vs national avg 83.1

0%100%National avg83%69.5%
MIPS final score (Nephrology Physician) — 69.5268/100 vs national avg 83.1

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).

VICTOR WASSILY, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 101 E BEVERLY BLVD STE 202, MONTEBELLO, CA, 90640, with a listed phone of (323) 722-7711. NPI 1962423590 was issued on 07/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WASSILY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 13,257 prescription claims written by this provider, covering 427 Medicare beneficiaries and totaling roughly $1.7 million in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 1.4%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 69.5268/100 for the 2023 performance year (Quality 75.7878, Cost 72.6347), compared with the national average of 83.1.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

101 E BEVERLY BLVD STE 202
MONTEBELLO, CA 90640

Provider Details

NPI 1962423590
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 07/21/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

69.5268
Final Score
Avg: 83.1
75.7878
Quality
72.6347
Cost
0
Promoting Interoperability

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 VICTOR WASSILY, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$103

Largest payer

Novo Nordisk 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 VICTOR WASSILY, M.D.. To verify VICTOR WASSILY, M.D.'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 · Typical

VICTOR WASSILY, M.D. — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 13,257 2023 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 2023.

13,257
Total Claims
$1.7M
Total Drug Cost
427
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
23,274
Total Day Supply
674,315
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$1.2M
Generic Drug Cost
$539K
Opioid Claims
184 (1.4% rate)
Antibiotic Claims
390

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
2.62
Gender Split
56% female / 44% male
Age Distribution
<65: 34, 65-74: 211, 75-84: 112, 85+: 70

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What VICTOR WASSILY, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
636
Omeprazole
395
Gabapentin
391
Furosemide
389
Metformin Hcl
353
Glimepiride
321
Tamsulosin Hcl
307
Amlodipine Besylate
303
Irbesartan
293
Eliquis
Apixaban
281

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Nephrology Physician Overview

How VICTOR WASSILY, M.D. fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

VICTOR WASSILY, M.D.'s 13,257 claims are above the specialty average of 1,454.

Nearby Nephrology Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as WASSILY.

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is VICTOR WASSILY, M.D.'s specialty?
VICTOR WASSILY, M.D. specializes in Nephrology Physician and practices in MONTEBELLO, California. Credentials: M.D..
How much does VICTOR WASSILY, M.D. prescribe under Medicare Part D?
In 2023, VICTOR WASSILY, M.D. wrote 13,257 Medicare Part D claims totaling $1.7M in drug costs for 427 beneficiaries.
What is VICTOR WASSILY, M.D.'s Medicare quality score?
VICTOR WASSILY, M.D. has a CMS MIPS Final Score of 69.5268/100 (Quality: 75.7878, Cost: 72.6347). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is VICTOR WASSILY, M.D. located?
VICTOR WASSILY, M.D. is located at 101 E BEVERLY BLVD STE 202, MONTEBELLO, CA, 90640. Phone: (323) 722-7711.
What is VICTOR WASSILY, M.D.'s NPI number?
VICTOR WASSILY, M.D.'s National Provider Identifier (NPI) is 1962423590, issued on 07/21/2006.
Does VICTOR WASSILY, M.D. prescribe more brand-name or generic drugs?
VICTOR WASSILY, M.D.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $1.2M in brand drug costs.
Does VICTOR WASSILY, M.D. prescribe opioids?
Yes, VICTOR WASSILY, M.D. had 184 opioid claims in 2023 with an opioid prescribing rate of 1.4%.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does VICTOR WASSILY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, VICTOR WASSILY, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Omeprazole, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does VICTOR WASSILY, M.D. accept Medicare?
VICTOR WASSILY, M.D. appears in CMS Medicare data with 13,257 Part D claims and 427 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify VICTOR WASSILY, M.D.'s credentials?
VICTOR WASSILY, M.D.'s NPI is 1962423590 with credentials M.D.. 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

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 (2023). 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 April 2026 (NPPES) / 2023 (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