2026 NPPES data Ophthalmology Physician NPI 1932270097 WILLIAM MANDRICK
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WILLIAM MANDRICK, WILLIAM MANDRICK

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
740
Medicare Part D claims · 137 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
46%
generic claims · 54% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.3333/100
▼ 10 pts below national avg 83.1 · [object Object]

What the federal data shows

WILLIAM MANDRICK, WILLIAM MANDRICK reported a CMS MIPS final score of 73.3333/100 — below the 83.1 national average — and filed 740 Medicare Part D claims in 2023.

73.3333/100
MIPS score · -10 vs avg
740
Part D claims, 2023
46%
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.

WILLIAM MANDRICK, WILLIAM MANDRICK's MIPS score vs every scored U.S. clinician

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

73 11th percentile higher than 11% 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%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 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)

WILLIAM MANDRICK, WILLIAM MANDRICK 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 WILLIAM MANDRICK, WILLIAM MANDRICK?

Below national average

NPI registry status

Active

Issued 11/12/2006

NPI 1932270097

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

740 48% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

73.3333/100 9.7667% pts

Mid-tier 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

WILLIAM MANDRICK, WILLIAM MANDRICK's 2023 MIPS final score plotted against the Ophthalmology Physician national average

Below national average
MIPS Final Score
73.3333/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 73.3333/100 vs national avg 83.1

0%100%National avg83%73.3%
MIPS final score (Ophthalmology Physician) — 73.3333/100 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).

WILLIAM MANDRICK, WILLIAM MANDRICK appears in the CMS NPPES registry as a Ophthalmology Physician provider holding WILLIAM MANDRICK credentials at 17310 VENTURA BLVD, ENCINO, CA, 91316, with a listed phone of (818) 728-4260. NPI 1932270097 was issued on 11/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MANDRICK 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 740 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $130K in drug spend, split 54% brand-name and 46% 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 73.3333/100 for the 2023 performance year (Quality 26.6667), 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

17310 VENTURA BLVD
ENCINO, CA 91316

Provider Details

NPI 1932270097
Specialty Ophthalmology Physician
Credentials WILLIAM MANDRICK
Gender Male
NPI Issued 11/12/2006

CMS Quality Score (MIPS)

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

73.3333
Final Score
Avg: 83.1
26.6667
Quality

Reporting: Group practice

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 WILLIAM MANDRICK, WILLIAM MANDRICK. To verify WILLIAM MANDRICK, WILLIAM MANDRICK'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 · Brand-heavy

WILLIAM MANDRICK, WILLIAM MANDRICK — brand share 54.0%
Specialty average (est.)

54% brand-name claims vs 46% generic, on 740 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.

740
Total Claims
$130K
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,040
Total Day Supply
27,973
Brand vs Generic
54% brand / 46% generic
Brand Drug Cost
$111K
Generic Drug Cost
$19K

Patient Demographics

Average Patient Age
79.0 years
Avg HCC Risk Score
2.33
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

What WILLIAM MANDRICK, WILLIAM MANDRICK 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
Latanoprost
193
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
67
Restasis
Cyclosporine
65
Bromfenac Sodium
58
Timolol Maleate
48
Prolensa
Bromfenac Sodium
41
Lumigan
Bimatoprost
36
Prednisolone Acetate
36
Rocklatan
Netarsudil Mesylat/Latanoprost
30
Cyclosporine
27

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

Ophthalmology Physician Overview

How WILLIAM MANDRICK, WILLIAM MANDRICK 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

WILLIAM MANDRICK, WILLIAM MANDRICK's 740 claims are below 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 MANDRICK.

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

Frequently Asked Questions

What is WILLIAM MANDRICK, WILLIAM MANDRICK's specialty?
WILLIAM MANDRICK, WILLIAM MANDRICK specializes in Ophthalmology Physician and practices in ENCINO, California. Credentials: WILLIAM MANDRICK.
How much does WILLIAM MANDRICK, WILLIAM MANDRICK prescribe under Medicare Part D?
In 2023, WILLIAM MANDRICK, WILLIAM MANDRICK wrote 740 Medicare Part D claims totaling $130K in drug costs for 137 beneficiaries.
What is WILLIAM MANDRICK, WILLIAM MANDRICK's Medicare quality score?
WILLIAM MANDRICK, WILLIAM MANDRICK has a CMS MIPS Final Score of 73.3333/100 (Quality: 26.6667). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WILLIAM MANDRICK, WILLIAM MANDRICK located?
WILLIAM MANDRICK, WILLIAM MANDRICK is located at 17310 VENTURA BLVD, ENCINO, CA, 91316. Phone: (818) 728-4260.
What is WILLIAM MANDRICK, WILLIAM MANDRICK's NPI number?
WILLIAM MANDRICK, WILLIAM MANDRICK's National Provider Identifier (NPI) is 1932270097, issued on 11/12/2006.
Does WILLIAM MANDRICK, WILLIAM MANDRICK prescribe more brand-name or generic drugs?
WILLIAM MANDRICK, WILLIAM MANDRICK's prescribing is 54% brand-name and 46% generic drugs by claim count, with $111K 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 WILLIAM MANDRICK, WILLIAM MANDRICK prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM MANDRICK, WILLIAM MANDRICK's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Restasis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM MANDRICK, WILLIAM MANDRICK accept Medicare?
WILLIAM MANDRICK, WILLIAM MANDRICK appears in CMS Medicare data with 740 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM MANDRICK, WILLIAM MANDRICK's credentials?
WILLIAM MANDRICK, WILLIAM MANDRICK's NPI is 1932270097 with credentials WILLIAM MANDRICK. 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