DR. MONICA M O'SULLIVAN MD
NPI 1043262546
Internal Medicine in West Allis, WI

Active since May 16, 2006PECOS Enrolled
11211 W LINCOLN AVE, WEST ALLIS, WI 53227(414) 454-8300(414) 327-1450 Get Directions Write a Review

NPPES record last updated: September 9, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Monica M O'sullivan Md NPPES

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

DR. MONICA M O'SULLIVAN MD (NPI 1043262546) is an individual internal medicine provider in West Allis, Wisconsin, licensed in Wisconsin (44298) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043262546
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MONICA M O'SULLIVANCredential: MD
Location Address11211 W LINCOLN AVEWest Allis, WI 53227-1035
Mailing Address11211 W Lincoln AveWest Allis, WI 53227-1035 · (414) 454-8300 · Fax (414) 327-1450
Fax(414) 327-1450
Sole ProprietorNo
Enumeration DateMay 16, 2006
Last NPPES UpdateSeptember 9, 2021
NPPES CertifiedSeptember 9, 2021
NPI 1043262546 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in WI · 44298
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
11211 W LINCOLN AVE, West Allis, WI 53227

Other Names 1

Former Name (1)Dr. Monica M Ziebert Md

Other Identifiers 3

Medicaid34193700WI
Other004000261VHumana
Medicaid1043262546WI

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. Monica M O'sullivan Md 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 53227 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
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
17 suppliers30 claims90 services$5.65 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
9 suppliers17 claims24 services$0.94 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 14

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

Obstetrics & Gynecology
11211 W LINCOLN AVE
WEST ALLIS, WI 53227
Nurse Practitioner (Adult Health)
11211 W LINCOLN AVE
WEST ALLIS, WI 53227
Physician Assistant (Medical)
11211 W LINCOLN AVE
WEST ALLIS, WI 53227
Nurse Practitioner (Family)
11211 W LINCOLN AVE
WEST ALLIS, WI 53227
Advanced Practice Midwife
11211 W LINCOLN AVE
WEST ALLIS, WI 53227
Nurse Practitioner (Family)
11211 W LINCOLN AVE
WEST ALLIS, WI 53227
Obstetrics & Gynecology
11211 W LINCOLN AVE, LINCOLN AVENUE CLINIC
MILWAUKEE, WI 53227
Internal Medicine
11211 W LINCOLN AVE, LINCOLN AVENUE CLINIC
WEST ALLIS, WI 53227

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 Monica O'sullivan's NPI number?

The NPI number for Monica O'sullivan is 1043262546. It was assigned to this individual provider in the NPPES registry on May 16, 2006. The provider is also known as Dr. Monica M Ziebert MD.

Where is Monica O'sullivan located?

Monica O'sullivan practices at 11211 W Lincoln Ave, West Allis, WI 53227. The listed phone number is (414) 454-8300.

What is Monica O'sullivan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Monica O'sullivan enrolled in Medicare?

Yes. Monica O'sullivan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Monica O'sullivan was last updated on September 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.