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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.

DR. MARCUS LEON GANN JR. M.D.
NPI 1124207527
Surgery in Bethesda, MD

Active since November 01, 2007PECOS Enrolled
8001 WOODMONT AVE APT 817, BETHESDA, MD 20814(310) 900-5669 Get Directions Write a Review

NPPES record last updated: August 29, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Marcus Leon Gann Jr. M.d. NPPES

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

DR. MARCUS LEON GANN JR. M.D. (NPI 1124207527) is an individual surgery provider in Bethesda, Maryland, licensed in Maryland (D0108068) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124207527
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. MARCUS LEON GANN JR.Credential: M.D.
Location Address8001 WOODMONT AVE APT 817Bethesda, MD 20814-3776
Mailing Address8001 Woodmont Ave Apt 817Bethesda, MD 20814-3776 · (410) 900-5669
Phone(310) 900-5669
Sole ProprietorYes
Enumeration DateNovember 1, 2007
Last NPPES UpdateAugust 29, 2026
NPPES CertifiedAugust 29, 2026
✔ NPI 1124207527 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MD · D0108068
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
8001 WOODMONT AVE APT 817, Bethesda, MD 20814
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Marcus Leon Gann Jr. M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 20814 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
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
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.

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 Marcus Gann's NPI number?

The NPI number for Marcus Gann is 1124207527. It was assigned to this individual provider in the NPPES registry on November 1, 2007.

Where is Marcus Gann located?

Marcus Gann practices at 8001 Woodmont Ave Apt 817, Bethesda, MD 20814. The listed phone number is (310) 900-5669.

What is Marcus Gann's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Marcus Gann enrolled in Medicare?

Yes. Marcus Gann is registered in the Medicare PECOS enrollment system.

What insurance does Marcus Gann accept?

Health plans from CareSource list Marcus Gann as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marcus Gann was last updated on August 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.