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DR. MAREK MICHAL LORENC MD
NPI 1992813588
Dermatology - Procedural Dermatology in Santa Rosa, CA

Active since August 25, 2006Opted out of Medicare · through Oct 1, 2026
3562 ROUND BARN CIR, SUITE 320, SANTA ROSA, CA 95403(707) 578-1900(707) 578-1111 Get Directions Write a Review

NPPES record last updated: September 6, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Marek Michal Lorenc Md NPPES

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

DR. MAREK MICHAL LORENC MD (NPI 1992813588) is an individual procedural dermatology provider in Santa Rosa, California, licensed in California (G53057) and active in the NPI registry since August 2006. He has opted out of Medicare through October 1, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1992813588
Entity TypeIndividualMale
Primary Taxonomy207NS0135X
Provider Legal NameDR. MAREK MICHAL LORENCCredential: MD
Location Address3562 ROUND BARN CIR, SUITE 320Santa Rosa, CA 95403-0179
Mailing Address3562 Round Barn Cir, Suite 320Santa Rosa, CA 95403-0179 · (707) 578-1900 · Fax (707) 578-1111
Phone(707) 578-1900
Fax(707) 578-1111
Sole ProprietorYes
Enumeration DateAugust 25, 2006
Last NPPES UpdateSeptember 6, 2011
✔ NPI 1992813588 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatology · Procedural DermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207NS0135X
License✔ Licensed in CA · G53057
Definition
Procedural Dermatology, a subspecialty of Dermatology, encompassing a wide variety of surgical procedures and methods to remove or modify skin tissue for health or cosmetic benefit. These methods include scalpel surgery, laser surgery, chemical surgery, cryosurgery (liquid nitrogen), electrosurgery, aspiration surgery, liposuction, injection of filler substances, and Mohs micrographic controlled surgery (a special technique for the removal of growths, especially skin cancers).
3562 ROUND BARN CIR, Santa Rosa, CA 95403
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINA52423CA
Medicare PIN00G530570CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Dr. Marek Michal Lorenc Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 1, 2018 through October 1, 2026.

Opt-Out Effective DateOctober 1, 2018
Opt-Out In Effect ThroughOctober 1, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95403 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
$96.16 typical visit price
range $63.04 – $187.01
Typical copayment $24.04 (range $15.76 – $46.75)
Most-billed visit code 99203
Established Patient
$77.94 typical visit price
range $21.02 – $153.40
Typical copayment $19.48 (range $5.25 – $38.35)
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

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

MAREK MICHAL LORENC, M.D.
Dermatology (Procedural Dermatology)
3562 ROUND BARN CIR, SUITE 320
SANTA ROSA, CA 95403
Sonoma County (707) 578-1900

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 Marek Lorenc's NPI number?

The NPI number for Marek Lorenc is 1992813588. It was assigned to this individual provider in the NPPES registry on August 25, 2006.

Where is Marek Lorenc located?

Marek Lorenc practices at 3562 Round Barn Cir Suite 320, Santa Rosa, CA 95403. The listed phone number is (707) 578-1900.

What is Marek Lorenc's specialty?

The primary specialty registered for this NPI is Dermatology, specializing in Procedural Dermatology, with taxonomy code 207NS0135X.

Is Marek Lorenc enrolled in Medicare?

No. Marek Lorenc has opted out of Medicare through October 1, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Marek Lorenc was last updated on September 6, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.