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DR. LEO TREYSMAN M.D.
NPI 1184838575
Emergency Medicine in Hartford, WI

Active since May 09, 2007PECOS Enrolled
95.81/100
CMS Quality Rating
1032 E SUMNER ST, HARTFORD, WI 53027(262) 673-2300 Get Directions Write a Review

NPPES record last updated: May 31, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 24, 2021, Nov 8, 2019 (2 updates tracked since 2019).

About Dr. Leo Treysman M.d. NPPES

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

DR. LEO TREYSMAN M.D. (NPI 1184838575) is an individual emergency medicine provider in Hartford, Wisconsin, licensed in Wisconsin (2022) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1184838575
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. LEO TREYSMANCredential: M.D.
Location Address1032 E SUMNER STHartford, WI 53027-1608
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250
Phone(262) 673-2300
Sole ProprietorNo
Enumeration DateMay 9, 2007
Last NPPES UpdateMay 31, 20242 updates tracked since enumeration
NPPES CertifiedMay 31, 2024
✔ NPI 1184838575 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in WI · 2022✔ Licensed in IL · 036-124362
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1032 E SUMNER ST, Hartford, WI 53027
Open in Google Maps ↗

Secondary Practice Locations 3

Location 11740 W Taylor StChicago, IL 60612-7232 · Phone (866) 600-2273
Location 22661 County Highway IChippewa Falls, WI 54729-5407 · Phone (715) 723-1811
Location 3900 W Clairemont AveEau Claire, WI 54701-6122 · Phone (715) 717-4121

Other Identifiers 1

Medicaid100015773WI

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Leo Treysman M.d. 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.

Medicare Billing Reassignments

3

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

Emergency Medicine Specialists, S.C.
20 mi
Emergency Medicine
10625 W NORTH AVE, SUITE 102
Milwaukee, WI 53226
  • Reassigned Medicare billing, Wisconsin enrollment
  • Medicare enrollment name: Emergency Medicine Specialists Sc
  • 244 clinicians in this Medicare group
NPI 1568413524 (414) 877-5350
Ascension Calumet Hospital, Inc
45 mi
Critical Access
614 MEMORIAL DR
Chilton, WI 53014
  • Reassigned Medicare billing, Wisconsin enrollment
  • 91 clinicians in this Medicare group
NPI 1376541748 (920) 849-2386
Door County Memorial Hospital
116 mi
Critical Access
323 S 18TH AVE
Sturgeon Bay, WI 54235
  • Reassigned Medicare billing, Wisconsin enrollment
  • 131 clinicians in this Medicare group
NPI 1093743874 (920) 743-5566

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 4

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.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
45 services45 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
44 services44 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
31 services29 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53027 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
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

95.81/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality100
Promoting Interoperability81
Improvement Activities40

Reported Quality Measures

Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%959 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

HEATHER LUDY
Clinical Nurse Specialist
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-7616
JENNA L KOEPPEL P.T.
Physical Therapist
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-4300
JOSHUA DILDAY D.O.
Surgery
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 673-2300
MRS. HEIDI RENEE LUMINA RD, CD, CNSC
Dietitian, Registered
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-7293
MICHELE MANDEL
Occupational Therapist (Hand)
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-4300
JANET L TEMMER PT
Physical Therapist
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-7000
LARA N MRAK MD
Radiology (Diagnostic Radiology)
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 673-2300
MAYE R BERROYA MD
Preventive Medicine (Undersea and Hyperbaric Medicine)
1032 E SUMNER ST
HARTFORD, WI 53027
Washington County (262) 670-7213

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 Leo Treysman's NPI number?

The NPI number for Leo Treysman is 1184838575. It was assigned to this individual provider in the NPPES registry on May 9, 2007.

Where is Leo Treysman located?

Leo Treysman practices at 1032 E Sumner St, Hartford, WI 53027. The listed phone number is (262) 673-2300.

What is Leo Treysman's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Leo Treysman enrolled in Medicare?

Yes. Leo Treysman is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Leo Treysman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leo Treysman reassigns Medicare benefits to 3 organizations: Emergency Medicine Specialists, S.C. (Milwaukee, WI), Ascension Calumet Hospital, Inc (Chilton, WI) and Door County Memorial Hospital (Sturgeon Bay, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leo Treysman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Leo Treysman accept?

Health plans from CareSource (Common Ground Healthcare) list Leo Treysman 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.

When was this NPI record last updated?

The NPPES record for Leo Treysman was last updated on May 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.