DR. JULIA ANNE LEO D.O.
NPI 1891953295
Internal Medicine - Gastroenterology in Milwaukee, WI

Q: What is Julia Leo's NPI number?

The NPI number for Julia Leo is 1891953295. It was assigned to this individual provider in the NPPES registry on June 2, 2008.

Q: What is Julia Leo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Julia Leo was last updated on January 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.

Active since June 02, 2008PECOS EnrolledAccepts Medicare Assignment

2801 W KINNICKINNIC RIVER PKWY STE 1080, MILWAUKEE, WI 53215(414) 908-6500(414) 908-6565 Get Directions Write a Review

NPPES record last updated: January 26, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 26, 2026, Oct 25, 2020 (2 updates tracked since 2020).

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About Dr. Julia Anne Leo D.o. NPPES

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

DR. JULIA ANNE LEO D.O. (NPI 1891953295) is an individual gastroenterology provider in Milwaukee, Wisconsin, licensed in Wisconsin (53753-21) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, is affiliated with Ascension St Francis Hospital, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1891953295

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameDR. JULIA ANNE LEOCredential: D.O.

Location Address2801 W KINNICKINNIC RIVER PKWY STE 1080Milwaukee, WI 53215-3689

Mailing Address2801 W Kinnickinnic River Pkwy Ste 1080Milwaukee, WI 53215-3689 · (414) 908-6506 · Fax (414) 908-6510

Phone(414) 908-6500

Fax(414) 908-6565

Sole ProprietorNo

Medical School CMSOtherGraduated 2008

Enumeration DateJune 2, 2008

Last NPPES UpdateJanuary 26, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 26, 2026

✔ NPI 1891953295 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in WI · 53753-21

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

2801 W KINNICKINNIC RIVER PKWY STE 1080, Milwaukee, WI 53215

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Julia Anne Leo D.o. 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 ID3678889524

PECOS Enrollment IDI20150908002919

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.

Medicare Billing Reassignments

Medicare enrollment records show Julia Leo reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Aurora Medical Group, Inc.

0.4 mi

Nurse Anesthetist, Certified Registered

3301 W FOREST HOME AVE
Milwaukee, WI 53215

Reassigned Medicare billing, Wisconsin enrollment
4,609 clinicians in this Medicare group

NPI 1427271378 (877) 576-3544

Ascension Medical Group-Southeast Wisconsin Inc

6.0 mi

Anesthesiology

2301 N LAKE DR
Milwaukee, WI 53211

Reassigned Medicare billing, Wisconsin enrollment
1,343 clinicians in this Medicare group

NPI 1194473066 (414) 585-1000

Gi Associates LLC

15 mi

Gastroenterology

2801 W KK RIVER PKWY STE 1080
Milwaukee, WI 53215

Reassigned Medicare billing, Wisconsin enrollment
45 clinicians in this Medicare group

NPI 1801863501 (414) 908-6500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

52 services43 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

38 services38 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

35 services34 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

30 services29 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

27 services21 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

22 services22 patients

Hospital Affiliations CMS Care Compare 3

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

Ascension St Francis Hospital

Acute Care Hospitals · Milwaukee, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520078

Location3237 S 16th StMilwaukee, WI 53215 · Milwaukee County

Emergency services

Ascension SE Wisconsin Hospital

Acute Care Hospitals · Milwaukee, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520136

Location5000 W Chambers StMilwaukee, WI 53210 · Milwaukee County

Emergency services Birthing friendly

Aurora St Lukes Medical Center

Acute Care Hospitals · Milwaukee, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520138

Location2900 W Oklahoma AveMilwaukee, WI 53215 · Milwaukee County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53215 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.

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.

MRS. NICOLE THERESA WHITE APNP

Nurse Practitioner (Family)