2026 NPPES data Ophthalmology Physician NPI 1346221728 M.D.
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DAVID AIZUSS, M.D.

Ophthalmology Physician in ENCINO, 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
2K
Medicare Part D claims · 436 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
53%
generic claims · 47% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$419.99
9 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DAVID AIZUSS, M.D. is a Ophthalmology Physician ([object Object]) practicing in ENCINO, California with a Medicare Part D prescribing footprint of 2K claims across 436 beneficiaries — 47% brand-name prescribing . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $419.99 across 9 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DAVID AIZUSS, M.D. reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 1,643 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DAVID AIZUSS, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

DAVID AIZUSS, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 11/11/2005

NPI 1346221728

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,643 16% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in California

How Ophthalmology Physician compares to other specialties among California providers

California providers

Ophthalmology Physician share within California

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

Medicare quality performance — MIPS

DAVID AIZUSS, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

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

0%100%National avg83%99%
MIPS final score (Ophthalmology Physician) — 100/100 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).

DAVID AIZUSS, M.D. is a Ophthalmology Physician provider practicing in ENCINO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1346221728. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

DAVID AIZUSS, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 16311 VENTURA BLVD, ENCINO, CA, 91436, with a listed phone of (818) 990-3623. NPI 1346221728 was issued on 11/11/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AIZUSS 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 1,643 prescription claims written by this provider, covering 436 Medicare beneficiaries and totaling roughly $255K in drug spend, split 47% brand-name and 53% generic by claim count. 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 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

16311 VENTURA BLVD
ENCINO, CA 91436

Provider Details

NPI 1346221728
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 11/11/2005

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where DAVID AIZUSS, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

OPHTHALMOLOGY ASSOCIATES OF THE VALLEY MEDICAL GROUP
ENCINO, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 DAVID AIZUSS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$420

Largest payer

Glaukos Corporation

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 DAVID AIZUSS, M.D.. To verify DAVID AIZUSS, 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 · Above average

DAVID AIZUSS, M.D. — brand share 47.0%
Specialty average (est.)

47% brand-name claims vs 53% generic, on 1,643 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.

1,643
Total Claims
$255K
Total Drug Cost
436
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,856
Total Day Supply
80,098
Brand vs Generic
47% brand / 53% generic
Brand Drug Cost
$223K
Generic Drug Cost
$33K
Antibiotic Claims
49

Patient Demographics

Average Patient Age
79.1 years
Avg HCC Risk Score
1.21
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
641
Timolol Maleate
219
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
75
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
74
Restasis
Cyclosporine
68
Xiidra
Lifitegrast
66
Prednisolone Acetate
60
Travoprost
46
Dorzolamide Hcl
45
Atropine Sulfate
39

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

Ophthalmology Physician Overview

How DAVID AIZUSS, M.D. fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

DAVID AIZUSS, M.D.'s 1,643 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in California

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

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

Frequently Asked Questions

What is DAVID AIZUSS, M.D.'s specialty?
DAVID AIZUSS, M.D. specializes in Ophthalmology Physician and practices in ENCINO, California. Credentials: M.D..
How much does DAVID AIZUSS, M.D. prescribe under Medicare Part D?
In 2023, DAVID AIZUSS, M.D. wrote 1,643 Medicare Part D claims totaling $255K in drug costs for 436 beneficiaries.
What is DAVID AIZUSS, M.D.'s Medicare quality score?
DAVID AIZUSS, M.D. has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DAVID AIZUSS, M.D. located?
DAVID AIZUSS, M.D. is located at 16311 VENTURA BLVD, ENCINO, CA, 91436. Phone: (818) 990-3623.
What is DAVID AIZUSS, M.D.'s NPI number?
DAVID AIZUSS, M.D.'s National Provider Identifier (NPI) is 1346221728, issued on 11/11/2005.
Does DAVID AIZUSS, M.D. prescribe more brand-name or generic drugs?
DAVID AIZUSS, M.D.'s prescribing is 47% brand-name and 53% generic drugs by claim count, with $223K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does DAVID AIZUSS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DAVID AIZUSS, M.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Tobramycin-Dexamethasone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID AIZUSS, M.D. accept Medicare?
DAVID AIZUSS, M.D. appears in CMS Medicare data with 1,643 Part D claims and 436 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID AIZUSS, M.D.'s credentials?
DAVID AIZUSS, M.D.'s NPI is 1346221728 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