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Internal Medicine

Fredric S. Sirkis, MD

Sees patients in Timonium, MD · Baltimore, MD · Maryland

Summary

Fredric S. Sirkis, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Timonium, MD and Baltimore, MD. NPI 1649356247. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Fredric S. Sirkis, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
48Years since medical school (graduated 1978)
University Of Maryland School Of MedicineMedical school
MaleGender (as listed)
Maryland Family Care IncGroup practice

Quick answers

Where does Fredric S. Sirkis see patients?
Medicare's clinician data lists 2 practice locations, including Timonium, MD and Baltimore, MD. Call before your visit to confirm the address.
What is Fredric S. Sirkis's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Geriatric Medicine.
Does Fredric S. Sirkis accept Medicare assignment?
Yes. Medicare's clinician data says Fredric S. Sirkis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Fredric S. Sirkis?
(800) 657-6268, as listed in official Medicare / NPI Registry data.
What is Fredric S. Sirkis's NPI number?
1649356247. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Fredric S. Sirkis is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Fredric S. Sirkis as a member of this group (CMS data updated 2026-10-02).

  • Maryland Family Care Inc157 clinicians in the group

Specialties

Find other Internal Medicine doctors in Maryland →

Other internal medicine doctors in Timonium

Clinicians with the same Medicare primary specialty in Timonium, MD — not a recommendation.

All internal medicine doctors in Timonium →

Clinician information

CredentialMD
Medical schoolUniversity Of Maryland School Of Medicine
Graduation year1978
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1649356247
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians