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DR. JAMES MESROBIAN MD
NPI 1619936325
Anesthesiology in Summit, WI

Active since March 21, 2006PECOS EnrolledAccepts Medicare Assignment
36500 AURORA DR, SUMMIT, WI 53066(262) 434-1000 Get Directions Write a Review

NPPES record last updated: November 13, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. James Mesrobian Md NPPES

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

DR. JAMES MESROBIAN MD (NPI 1619936325) is an individual anesthesiology provider in Summit, Wisconsin, licensed in Wisconsin (45520) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Ascension All Saints Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1619936325
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. JAMES MESROBIANCredential: MD
Location Address36500 AURORA DRSummit, WI 53066-4899
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250
Phone(262) 434-1000
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateMarch 21, 2006
Last NPPES UpdateNovember 13, 2025
NPPES CertifiedNovember 13, 2025
✔ NPI 1619936325 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in WI · 45520
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
36500 AURORA DR, Summit, WI 53066
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Secondary Practice Locations 2

Location 19200 W Wisconsin AveMilwaukee, WI 53226-3522 · Phone (414) 805-8700 · Fax (414) 259-1522
Location 25000 W Burleigh St, Department of AnesthesiologyMilwaukee, WI 53210-1646 · Phone (414) 447-2000

Other Identifiers 1

Medicaid1619936325WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. James Mesrobian Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911804729
PECOS Enrollment IDI20031218000260
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension All Saints Hospital

Acute Care Hospitals · Racine, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520096
Location3801 Spring StRacine, WI 53405 · Racine County
Emergency services Birthing friendly

Aurora Medical Center

Acute Care Hospitals · Grafton, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520207
Location975 Port Washington RoadGrafton, WI 53024 · Ozaukee County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

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

BIJAN NEZAMI
Internal Medicine (Critical Care Medicine)
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
KEVIN L EGGLESTON M.D.
Hospitalist
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-4711
KODY LEWIS PA C
Physician Assistant
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
REBECCA M STRIET M.D.
Preventive Medicine (Undersea and Hyperbaric Medicine)
36500 AURORA DR, DEPARTMENT OF WOUND CARE/HYPERBARIC MEDICINE 3RD FLOOR
SUMMIT, WI 53066
Waukesha County (262) 434-5000
REBECCA SUSA DPT, ATC-L
Physical Therapist
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-2600
VIJAY JOHNSON M.D
Internal Medicine (Critical Care Medicine)
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
MRS. KELLY S CAMPBELL ANP-BC
Nurse Practitioner
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000
DR. BRETT MCLACHLAN M.D.
Emergency Medicine
36500 AURORA DR
SUMMIT, WI 53066
Waukesha County (262) 434-1000

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 James Mesrobian's NPI number?

The NPI number for James Mesrobian is 1619936325. It was assigned to this individual provider in the NPPES registry on March 21, 2006.

Where is James Mesrobian located?

James Mesrobian practices at 36500 Aurora Dr, Summit, WI 53066. The listed phone number is (262) 434-1000.

What is James Mesrobian's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is James Mesrobian enrolled in Medicare?

Yes. James Mesrobian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does James Mesrobian accept?

Health plans from CareSource (Common Ground Healthcare) list James Mesrobian 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.

Is James Mesrobian affiliated with any hospitals?

According to CMS data, James Mesrobian is affiliated with Ascension All Saints Hospital and Aurora Medical Center.

When was this NPI record last updated?

The NPPES record for James Mesrobian was last updated on November 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.