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Internal Medicine

Camelia E. Marian, MD

Works at hospitals in Barrington, IL · Elgin, IL · Janesville, WI … · Illinois, Wisconsin

Summary

Camelia E. Marian, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Barrington, IL, Elgin, IL and Janesville, WI and other places. NPI 1851451132. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Camelia E. Marian, 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
YesOffers telehealth
33Years since medical school (graduated 1993)
FemaleGender (as listed)
Mercy Health System CorporationGroup practice

Quick answers

Which hospitals does Camelia E. Marian work at?
Medicare's official clinician data lists Camelia E. Marian at 5 hospitals: Advocate Good Shepherd Hospital, Advocate Sherman Hospital, Mercy Health System Corp, Mercyhealth Hospital & Physician Clinic-Crystal LA… and Northwestern Medicine McHenry. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Camelia E. Marian see patients?
Medicare's clinician data lists 5 practice locations, including Algonquin, IL, Harvard, IL and Barrington, IL. Call before your visit to confirm the address.
What is Camelia E. Marian's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Camelia E. Marian accept Medicare assignment?
Yes. Medicare's clinician data says Camelia E. Marian 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.
Does Camelia E. Marian offer telehealth?
Medicare's clinician data says Camelia E. Marian offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Camelia E. Marian?
(815) 363-8866, as listed in official Medicare / NPI Registry data.
What is Camelia E. Marian's NPI number?
1851451132. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Camelia E. Marian works

Medicare's Facility Affiliation Data lists Camelia E. Marian at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Camelia E. Marian is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Camelia E. Marian as a member of this group (CMS data updated 2026-10-02).

  • Mercy Health System Corporation753 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Algonquin

Clinicians with the same Medicare primary specialty in Algonquin, IL — not a recommendation.

All internal medicine doctors in Algonquin →

Clinician information

CredentialMD
Graduation year1993
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1851451132
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians