1. Home
  2. Directory
  3. Wisconsin
  4. La Crosse
  5. Emergency Medicine
  6. NPI Profile

DR. JOHN JOSEPH FLAHERTY JR. M.D., MPH
NPI 1528143807
Emergency Medicine in La Crosse, WI

Active since October 26, 2006PECOS EnrolledAccepts Medicare Assignment
83.84/100
CMS Quality Rating
1836 SOUTH AVE, LA CROSSE, WI 54601(608) 782-7300 Get Directions Write a Review

NPPES record last updated: April 3, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 3, 2026, Jun 24, 2025 (2 updates tracked since 2025).

About Dr. John Joseph Flaherty Jr. M.d., Mph NPPES

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

DR. JOHN JOSEPH FLAHERTY JR. M.D., MPH (NPI 1528143807) is an individual emergency medicine provider in La Crosse, Wisconsin, licensed in Wisconsin (86972) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Roosevelt General Hospital, and is a graduate of Other (1981).

NPPES Registry Identity

NPI1528143807
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. JOHN JOSEPH FLAHERTY JR.Credential: M.D., MPH
Location Address1836 SOUTH AVELa Crosse, WI 54601-5429
Mailing Address1836 South AveLa Crosse, WI 54601-5429 · (608) 782-7300
Phone(608) 782-7300
Sole ProprietorNo
Medical School CMSOtherGraduated 1981
Enumeration DateOctober 26, 2006
Last NPPES UpdateApril 3, 20262 updates tracked since enumeration
NPPES CertifiedApril 3, 2026
✔ NPI 1528143807 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in WI · 86972✔ Licensed in IL · 036064476✔ Licensed in MN · 81701
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.
Also ListedGeneral PracticeTaxonomy 208D00000X · License MD2022-1413 (NM)
1836 SOUTH AVE, La Crosse, WI 54601
Open in Google Maps ↗

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. John Joseph Flaherty Jr. M.d., Mph 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 ID7315978780
PECOS Enrollment IDI20221227000800, I20260413000512, I20260413000653
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.

Areas of Expertise CMS Part B claims

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.
15 services15 patients

Hospital Affiliations CMS Care Compare 3

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

Roosevelt General Hospital

Acute Care Hospitals · Portales, NM
OwnershipGovernment - Hospital District or Authority
CMS Certification Number320084
Location42121 Us Highway 70Portales, NM 88130 · Roosevelt County
Emergency services

Cibola General Hospital

Critical Access Hospitals · Grants, NM
OwnershipVoluntary non-profit - Private
CMS Certification Number321308
Location1016 E Roosevelt AvenueGrants, NM 87020 · Cibola County
Emergency services Birthing friendly

Gundersen Lutheran Medical Center

Acute Care Hospitals · La Crosse, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520087
Location1910 South AveLa Crosse, WI 54601 · La Crosse County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54601 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.

83.84/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality84.59
Promoting Interoperability100
Improvement Activities40
Cost58.63

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.

JEFFREY BRIAN TROHKIMOINEN M.D.
Anesthesiology
1836 SOUTH AVE, GUNDERSEN CLINIC, LTD.
LA CROSSE, WI 54601
La Crosse County (608) 775-2031
JESSICA E THESING CRNA
Nurse Anesthetist, Certified Registered
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
DR. MICHAEL DAVID SMITH PSY.D.
Psychologist
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JESSICA MAE RASMUSSEN
Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
JULIE SONSALLA APNP
Nurse Practitioner (Adult Health)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
LAURA KLINGBEIL
Orthopaedic Surgery
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
SUSAN CAROL SORRENTINO RN
Registered Nurse (Addiction (Substance Use Disorder))
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300
NAOMI MUTHONI RUIRU APNP
Nurse Practitioner (Family)
1836 SOUTH AVE
LA CROSSE, WI 54601
La Crosse County (608) 782-7300

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 John Flaherty's NPI number?

The NPI number for John Flaherty is 1528143807. It was assigned to this individual provider in the NPPES registry on October 26, 2006.

Where is John Flaherty located?

John Flaherty practices at 1836 South Ave, La Crosse, WI 54601. The listed phone number is (608) 782-7300.

What is John Flaherty's specialty?

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

Is John Flaherty enrolled in Medicare?

Yes. John Flaherty 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.

Is John Flaherty affiliated with any hospitals?

According to CMS data, John Flaherty is affiliated with Roosevelt General Hospital, Cibola General Hospital and Gundersen Lutheran Medical Center.

When was this NPI record last updated?

The NPPES record for John Flaherty was last updated on April 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.