Serena Mraz, M.D.
Dermatology · Vallejo, CA
At a glance
2290 Sacramento St, Vallejo, CA 94590-2929
Published activity: Melanoma (skin cancer) excision · Removal of skin lesions · Removal or shaving of skin growth. View counts and coverage
NPPES record updated May 10, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
2290 Sacramento StVallejo, CA 94590-2929
Additional reported practice locations
480 Chadbourne RdFairfield, CA 945349639
Phone: 7073994500
Fax: 7073999410
Education & affiliations
- Medical / professional school
- Tufts University School Of Medicine
- Graduation year
- 1993
- CMS specialties
- Dermatology
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Melanoma (skin cancer) excision | 24 |
| Removal of skin lesions | 2226 |
| Removal or shaving of skin growth | 1-10 |
| Skin biopsy | 1672 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Services other than consulting | $34,125.00 |
| Travel and lodging | $2,491.34 |
| Food and beverage | $2,101.56 |
| Education | $72.00 |
Reporting companies
| Company | Amount |
|---|---|
| GALDERMA LABORATORIES, L.P. | $37,450.39 |
| ABBVIE INC. | $654.30 |
| ORTHO DERMATOLOGICS, A DIVISION OF BAUSCH HEALTH US, LLC | $140.63 |
| UCB, INC. | $102.87 |
| GENZYME CORPORATION | $102.22 |
| JANSSEN BIOTECH, INC. | $101.97 |
| ARCUTIS BIOTHERAPEUTICS, INC. | $92.40 |
| PFIZER INC. | $49.18 |
| Other reporting companies | $95.94 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Dermatology
- Taxonomy code
- 207N00000X
- Enumeration date
- May 19, 2006
- Record updated
- May 10, 2023
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- SERENA MRAZ-GERNHARD
- Reported credentials
- M.D.
Reported taxonomies and licenses
207NS0135X
License reported: G81439 CA
207N00000X · Primary
License reported: G81439 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
2290 Sacramento StVallejo, CA 94590-2929
- Phone
- (707) 643-5785
- Fax
- (707) 643-8810
Mailing address
2290 SACRAMENTO STVALLEJO, CA 945902929
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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