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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. MARIO KARAM SHAMMAS MD, PHD
NPI 1366230799
Psychiatry & Neurology - Neurology in Rochester, MN

Active since April 26, 2025PECOS Enrolled
200 1ST ST. S.W., ROCHESTER, MN 55905(507) 284-2511 Get Directions Write a Review

NPPES record last updated: July 22, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 22, 2026, Aug 4, 2025 (2 updates tracked since 2025).

About Dr. Mario Karam Shammas Md, Phd NPPES

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

DR. MARIO KARAM SHAMMAS MD, PHD (NPI 1366230799) is an individual neurology provider in Rochester, Minnesota, licensed in Minnesota (83076) and active in the NPI registry since April 2025. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366230799
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. MARIO KARAM SHAMMASCredential: MD, PHD
Location Address200 1ST ST. S.W.Rochester, MN 55905-0001
Mailing AddressPo Box 860912Minneapolis, MN 55486-0912 · (507) 284-2511
Phone(507) 284-2511
Sole ProprietorNo
Enumeration DateApril 26, 2025
Last NPPES UpdateJuly 22, 20262 updates tracked since enumeration
NPPES CertifiedJuly 22, 2026
✔ NPI 1366230799 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in MN · 83076
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
Also ListedInternal MedicineTaxonomy 207R00000X · License 35341 (MN)
200 1ST ST. S.W., Rochester, MN 55905
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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)

Dr. Mario Karam Shammas Md, Phd 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 55905 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
$127.61 typical visit price
range $56.00 – $168.28
Typical copayment $31.90 (range $14.00 – $42.07)
Most-billed visit code 99204
Established Patient
$98.61 typical visit price
range $18.32 – $138.04
Typical copayment $24.65 (range $4.58 – $34.51)
Most-billed visit code 99214
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 4

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

CHRISTIAN ANDRE SANGIO MD
Internal Medicine
200 1ST ST. S.W.
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
INGRID MARIA CURRAN PHARMD
Pharmacist
200 1ST ST. S.W.
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
DANIEL JOHN KROLL DPT
Physical Therapist
200 1ST ST. S.W.
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
MCKAYLA MARY VLIEM MD
Pediatrics
200 1ST ST. S.W.
ROCHESTER, MN 55905
Olmsted County (507) 284-2511

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 Mario Shammas's NPI number?

The NPI number for Mario Shammas is 1366230799. It was assigned to this individual provider in the NPPES registry on April 26, 2025.

Where is Mario Shammas located?

Mario Shammas practices at 200 1st St. S.W., Rochester, MN 55905. The listed phone number is (507) 284-2511.

What is Mario Shammas's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Mario Shammas enrolled in Medicare?

Yes. Mario Shammas is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mario Shammas was last updated on July 22, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.