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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JUSTIN WU MARSON MD
NPI 1831650548
Dermatology - MOHS-Micrographic Surgery in Costa Mesa, CA

Active since March 26, 2019PECOS Enrolled
3080 BRISTOL ST STE 650, COSTA MESA, CA 92626(949) 317-2558(213) 408-4414 Get Directions Write a Review

NPPES record last updated: October 1, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Oct 1, 2026, Jan 5, 2022, Aug 15, 2021 and 2 more (5 updates tracked since 2019).

About Justin Wu Marson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JUSTIN WU MARSON MD (NPI 1831650548) is an individual mohs-micrographic surgery provider in Costa Mesa, California, licensed in California (201566) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of Rutgers R W Johnson Medical School (cam/new Bruns/pisc) (2019).

NPPES Registry Identity

NPI1831650548
Entity TypeIndividualMale
Primary Taxonomy207ND0101X
Provider Legal NameJUSTIN WU MARSONCredential: MD
Location Address3080 BRISTOL ST STE 650Costa Mesa, CA 92626-7311
Mailing Address3080 Bristol St Ste 650Costa Mesa, CA 92626-7311 · (949) 317-2558 · Fax (213) 408-4414
Phone(949) 317-2558
Fax(213) 408-4414
Sole ProprietorNo
Medical School CMSRutgers R W Johnson Medical School (cam/new Bruns/pisc)Graduated 2019
Enumeration DateMarch 26, 2019
Last NPPES UpdateOctober 1, 20265 updates tracked since enumeration
NPPES CertifiedOctober 1, 2026
✔ NPI 1831650548 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyDermatology · MOHS-Micrographic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207ND0101X
License✔ Licensed in CA · 201566
Definition
The highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased tissue, preserving healthy tissue and minimizing the cosmetic impact of the surgery. Mohs surgeons who belong to the American College of Mohs Surgery (ACMS) have completed a minimum of one year of fellowship training at one of the ACMS-approved training centers in the U.S.
Also ListedDermatologyTaxonomy 207N00000X · License 201566 (CA), 306483 (NY)
3080 BRISTOL ST STE 650, Costa Mesa, CA 92626
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Justin Wu Marson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8022599893
PECOS Enrollment IDI20260720000589
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92626 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. RAYMOND EDWARD KLEINFELDER III D.O.
Dermatology
3080 BRISTOL ST STE 650
COSTA MESA, CA 92626
Orange County (949) 317-2558
BERNICE YAN
Dermatology
3080 BRISTOL ST STE 650
COSTA MESA, CA 92626
Orange County (213) 319-3339

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Justin Marson's NPI number?

The NPI number for Justin Marson is 1831650548. It was assigned to this individual provider in the NPPES registry on March 26, 2019.

Where is Justin Marson located?

Justin Marson practices at 3080 Bristol St Ste 650, Costa Mesa, CA 92626. The listed phone number is (949) 317-2558.

What is Justin Marson's specialty?

The primary specialty registered for this NPI is Dermatology, specializing in MOHS-Micrographic Surgery, with taxonomy code 207ND0101X.

Is Justin Marson enrolled in Medicare?

Yes. Justin Marson is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Justin Marson was last updated on October 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.