Adam Hsu, M.D.
Ophthalmic Plastic and Reconstructive Surgery Physician in City Of Industry, 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 303 in Ophthalmic Plastic and Reconstructive Surgery 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.
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Adam Hsu, M.D. filed 4,792 Medicare Part D claims in 2024 as an Ophthalmic Plastic and Reconstructive Surgery Physician in City Of Industry, California, prescribing 63% generic.
- 5K
- Part D claims, 2024
- 63%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥93rd
- pct by Part D claim volume (lower-bound band)
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 Adam Hsu, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1699825083), first enumerated 01/10/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 4,792 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$610 in reported industry payments (32 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 Adam Hsu, M.D.'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.
Compare Hsu with other Ophthalmic Plastic and Reconstructive Surgery Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in California
- Dr. Jean-Paul Abboud, M.D., PH.D. Del Mar, CA
- Dr. Mica Bergman, M.D., PH.D. Santa Barbara, CA
- Dr. Brian Chon, MD Walnut Creek, CA
- Dr. Atif Collins, M.D. Fresno, CA
- Dr. Nahia Dib El Jalbout, MD La Jolla, CA
- Dr. Linden Doss, M.D. Los Angeles, CA
Other specialties in City Of Industry: Behavior Technician (405) · Pharmacist (31) · Marriage & Family Therapist (22) · Registered Nurse (21)
CMS NPPES provider registry desk
NPI 1699825083 · Ophthalmic Plastic and Reconstructive Surgery Physician
NPI-10 · ENUM-MID · TAX-TRACE · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1699825083
- ENUM-MID 2007
- TAX-TRACE 303
- RX-MID 4,792
- BOOK-THIN 32 in California
- PHOTO-ENUM Joseph Walrath, M.D. · 2007
Adam Hsu, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
4,792 ≥ 93rd percentile 93% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
Adam Hsu, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Adam Hsu, M.D.?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in California
How Ophthalmic Plastic and Reconstructive Surgery Physician compares to other specialties among California providers
Ophthalmic Plastic and Reconstructive Surgery Physician ranks #407 among California's specialties (0% of in-state providers)
Each bar is a specialty's share of the California provider total, by primary NUCC taxonomy. The highlighted bar is Ophthalmic Plastic and Reconstructive Surgery Physician; the long tail of smaller specialties is omitted for legibility.
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Ophthalmic Plastic and Reconstructive Surgery Physician. Verify directly:
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 | 1699825083 |
|---|---|
| Specialty | Ophthalmic Plastic and Reconstructive Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/10/2007 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Adam Hsu, M.D.'s current license status, disciplinary history, and board certifications with the Medical Board of California in California before relying on this page for a clinical or care decision.
How we sourced this profile
Profile fields combine the CMS NPPES monthly snapshot (provider directory, taxonomy, and address) with calendar-year 2023 Medicare Part D and MIPS public-use files when records are present. NPI 1699825083 is the unique 10-digit identifier CMS uses to link Hsu across every Medicare, Medicaid, and HIPAA-covered transaction. Read full methodology →
Hospital and facility affiliations
Facilities where Adam Hsu, 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.
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 Adam Hsu, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$610
Largest payer
Amgen 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 Adam Hsu, M.D.. To verify Adam Hsu, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
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
37% brand-name claims vs 63% generic, on 4,792 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.
Prescribing Breakdown
- 30-Day Fills
- 7,935.734
- Total Day Supply
- 226,995
- Brand vs Generic
- 37% brand / 63% generic
- Brand Drug Cost
- $460K
- Generic Drug Cost
- $84K
Patient Demographics
- Average Patient Age
- 75.1 years
- Avg HCC Risk Score
- 1.17
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 11, 65-74: 406, 75-84: 305, 85+: 89
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Adam Hsu, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
1,892 claims
- Dorzolamide-Timolol 526
Dorzolamide-Timolol
526 claims
- Brimonidine Tartrate 469
Brimonidine Tartrate
469 claims
- Timolol Maleate 331
Timolol Maleate
331 claims
- Cyclosporine 288
Cyclosporine
288 claims
- Lumigan 173
Lumigan
173 claims
- Restasis 165
Restasis
165 claims
- Dorzolamide Hcl 150
Dorzolamide Hcl
150 claims
| Drug | Claims |
|---|---|
| Latanoprost | 1,892 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 526 |
| Brimonidine Tartrate | 469 |
| Timolol Maleate | 331 |
| Cyclosporine | 288 |
| Lumigan Bimatoprost | 173 |
| Restasis Cyclosporine | 165 |
| Dorzolamide Hcl | 150 |
| Erythromycin Erythromycin Base | 126 |
| Azelastine Hcl | 118 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmic Plastic and Reconstructive Surgery Physician Overview
How Adam Hsu, M.D. fits within the Ophthalmic Plastic and Reconstructive Surgery Physician landscape nationally.
Adam Hsu, M.D.'s 4,792 claims are above the specialty average of 642.
Nationwide Ophthalmic Plastic and Reconstructive Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Hsu, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmic Plastic and Reconstructive Surgery Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Hsu.
One of 32 Ophthalmic Plastic and Reconstructive Surgery Physician providers enrolled in California, 11 are shown on this page.
Frequently Asked Questions
What is Adam Hsu, M.D.'s specialty? ▼
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Does Adam Hsu, M.D. prescribe more brand-name or generic drugs? ▼
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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.
- 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.
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