2026 NPPES data Cornea and External Diseases Specialist Physician NPI 1851376511 M.D.
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DAVID FUERST, M.D.

Cornea and External Diseases Specialist Physician in WEST COVINA, 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
4K
Medicare Part D claims · 616 beneficiaries · Cornea and External Diseases Specialist Physician avg: 1K
Generic prescribing
46%
generic claims · 54% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
70.5638/100
▼ 13 pts below national avg 83.1 · [object Object]
Industry payments
$380.03
5 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DAVID FUERST, M.D. is a Cornea and External Diseases Specialist Physician ([object Object]) practicing in WEST COVINA, California with a Medicare Part D prescribing footprint of 4K claims across 616 beneficiaries — 54% brand-name prescribing . Their CMS MIPS Final Score of 70.5638/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $380.03 across 5 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DAVID FUERST, M.D. reported a CMS MIPS final score of 70.5638 out of 100, below the 83.1 national average, and filed 3,800 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 FUERST, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

DAVID FUERST, M.D. at a glance

Below national average

NPI registry status

Active

Issued 12/14/2005

NPI 1851376511

Primary specialty

Cornea and External Diseases Specialist Physician

Rare

294 US NPIs in this specialty

Medicare Part D claims

3,800 208% vs specialty avg

2023 prescription claims

Specialty avg: 1,232

MIPS final score

70.5638/100 12.536199999999994% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in California

How Cornea and External Diseases Specialist Physician compares to other specialties among California providers

California providers

Cornea and External Diseases Specialist Physician share within California

1. Cornea and External Diseases Specialist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cornea and External Diseases Specialist Physician share within California

Medicare quality performance — MIPS

DAVID FUERST, M.D.'s 2023 MIPS final score plotted against the Cornea and External Diseases Specialist Physician national average

Below national average
MIPS Final Score
70.5638/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Cornea and External Diseases Specialist Physician) — 70.5638/100 vs national avg 83.1

0%100%National avg83%70.6%
MIPS final score (Cornea and External Diseases Specialist Physician) — 70.5638/100 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 FUERST, M.D. is a Cornea and External Diseases Specialist Physician provider practicing in WEST COVINA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1851376511. 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 FUERST, M.D. appears in the CMS NPPES registry as a Cornea and External Diseases Specialist Physician provider holding M.D. credentials at 1135 S. SUNSET AVE, WEST COVINA, CA, 91790, with a listed phone of (626) 856-2020. NPI 1851376511 was issued on 12/14/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FUERST 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 3,800 prescription claims written by this provider, covering 616 Medicare beneficiaries and totaling roughly $743K 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 70.5638/100 for the 2023 performance year (Quality 86.1487, Cost 16.6739), compared with the national average of 83.1.

Cornea and External Diseases Specialist Physician is a narrow specialty nationwide, with 294 enrolled providers across 43 states and an average of 1,232 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

1135 S. SUNSET AVE
WEST COVINA, CA 91790

Provider Details

NPI 1851376511
Specialty Cornea and External Diseases Specialist Physician
Credentials M.D.
Gender Male
NPI Issued 12/14/2005

CMS Quality Score (MIPS)

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

70.5638
Final Score
Avg: 83.1
86.1487
Quality
16.6739
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where DAVID FUERST, 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.

CHA MEDICAL AND SURGICAL GROUP PC
LOS ANGELES, CA
DAVID J FUERST M D INC
GLENDALE, 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 FUERST, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$380

Largest payer

Alcon Vision LLC

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 FUERST, M.D.. To verify DAVID FUERST, 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 · Brand-heavy

DAVID FUERST, M.D. — brand share 54.0%
Specialty average (est.)

54% brand-name claims vs 46% generic, on 3,800 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.

3,800
Total Claims
$743K
Total Drug Cost
616
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,176
Total Day Supply
175,290
Brand vs Generic
54% brand / 46% generic
Brand Drug Cost
$672K
Generic Drug Cost
$71K
Antibiotic Claims
36

Patient Demographics

Average Patient Age
78.7 years
Avg HCC Risk Score
1.50
Gender Split
59% female / 41% male
Age Distribution
<65: 14, 65-74: 199, 75-84: 244, 85+: 159

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisolone Acetate
582
Latanoprost
507
Lumigan
Bimatoprost
338
Ketorolac Tromethamine
268
Timolol Maleate
205
Moxifloxacin
Moxifloxacin Hcl
149
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
148
Restasis
Cyclosporine
146
Alphagan P
Brimonidine Tartrate
113
Brimonidine Tartrate
109

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

Cornea and External Diseases Specialist Physician Overview

How DAVID FUERST, M.D. fits within the Cornea and External Diseases Specialist Physician landscape nationally.

294
Cornea and External Diseases Specialist Physician Providers in US
43
States with Cornea and External Diseases Specialist Physician
1,232
Avg Claims per Provider

DAVID FUERST, M.D.'s 3,800 claims are above the specialty average of 1,232.

Nearby Cornea and External Diseases Specialist Physician Providers in California

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

Compare Cornea and External Diseases Specialist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVID FUERST, M.D.'s specialty?
DAVID FUERST, M.D. specializes in Cornea and External Diseases Specialist Physician and practices in WEST COVINA, California. Credentials: M.D..
How much does DAVID FUERST, M.D. prescribe under Medicare Part D?
In 2023, DAVID FUERST, M.D. wrote 3,800 Medicare Part D claims totaling $743K in drug costs for 616 beneficiaries.
What is DAVID FUERST, M.D.'s Medicare quality score?
DAVID FUERST, M.D. has a CMS MIPS Final Score of 70.5638/100 (Quality: 86.1487, Cost: 16.6739). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DAVID FUERST, M.D. located?
DAVID FUERST, M.D. is located at 1135 S. SUNSET AVE, WEST COVINA, CA, 91790. Phone: (626) 856-2020.
What is DAVID FUERST, M.D.'s NPI number?
DAVID FUERST, M.D.'s National Provider Identifier (NPI) is 1851376511, issued on 12/14/2005.
Does DAVID FUERST, M.D. prescribe more brand-name or generic drugs?
DAVID FUERST, M.D.'s prescribing is 54% brand-name and 46% generic drugs by claim count, with $672K in brand drug costs.
How many Cornea and External Diseases Specialist Physician providers are there in the US?
There are 294 Cornea and External Diseases Specialist Physician providers across 43 states in the US. The average Cornea and External Diseases Specialist Physician provider writes 1,232 Medicare Part D claims per year.
What drugs does DAVID FUERST, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DAVID FUERST, M.D.'s most frequently prescribed drugs include Prednisolone Acetate, Latanoprost, Lumigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID FUERST, M.D. accept Medicare?
DAVID FUERST, M.D. appears in CMS Medicare data with 3,800 Part D claims and 616 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID FUERST, M.D.'s credentials?
DAVID FUERST, M.D.'s NPI is 1851376511 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