MARK GAON, M.D.
Plastic and Reconstructive Surgery Physician in CORONA DEL MAR, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What stands out: MARK GAON, M.D. filed 98 Medicare Part D claims in 2023 across CORONA DEL MAR, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.
MARK GAON, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
MARK GAON, M.D. at a glance
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in California
How Plastic and Reconstructive Surgery Physician compares to other specialties among California providers
Plastic and Reconstructive Surgery Physician share within California
Plastic and Reconstructive Surgery Physician is one of the more visible NUCC categories in California
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Plastic and Reconstructive Surgery Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Plastic and Reconstructive Surgery Physician ABMS/AOA estimate
Est. board-certified rate (Plastic and Reconstructive Surgery Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Plastic and Reconstructive Surgery Physician US NPIs
Specialty board-certified rate — Plastic and Reconstructive Surgery Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
MARK GAON, M.D. is a Plastic and Reconstructive Surgery Physician provider practicing in CORONA DEL MAR, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1275770471. 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.
MARK GAON, M.D. appears in the CMS NPPES registry as a Plastic and Reconstructive Surgery Physician provider holding M.D. credentials at 2121 E COAST HWY STE 270, CORONA DEL MAR, CA, 92625, with a listed phone of (949) 642-3424. NPI 1275770471 was issued on 01/10/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GAON 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 98 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $741 in drug spend, with an opioid prescribing rate of 25.5%. 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.
Plastic and Reconstructive Surgery Physician is a narrow specialty nationwide, with 2,352 enrolled providers across 54 states and an average of 86 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
Provider Details
| NPI | 1275770471 |
|---|---|
| Specialty | Plastic and Reconstructive Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/10/2009 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm MARK GAON, 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
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 MARK GAON, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$438
Largest payer
ABBVIE 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 MARK GAON, M.D.. To verify MARK GAON, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 110
- Total Day Supply
- 1,260
- Generic Drug Cost
- $740
- Opioid Claims
- 25 (25.5% rate)
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 70.6 years
- Avg HCC Risk Score
- 0.82
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Ondansetron Odt Ondansetron | 20 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 19 |
| Cefadroxil | 17 |
| Diazepam | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Plastic and Reconstructive Surgery Physician Overview
How MARK GAON, M.D. fits within the Plastic and Reconstructive Surgery Physician landscape nationally.
MARK GAON, M.D.'s 98 claims are above the specialty average of 86.
Nearby 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 GAON.
Compare Plastic and Reconstructive Surgery Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
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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.
- 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