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Family Practice

Timothy J. Houlihan, MD

Works at hospitals in New London, WI · Waupaca, WI · Appleton, WI … · Wisconsin

Summary

Dr. Timothy J. Houlihan, MD is a family doctor at 1405 Mill St, New London, WI 54961. Phone: (920) 831-5050. Accepts Medicare assignment. In 2024, Timothy J. Houlihan had 142 Original Medicare patients and 802 services. NPI 1346260494. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Timothy J. Houlihan, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Timothy J. Houlihan accept Medicare assignment?
Yes. Medicare's clinician data says Timothy J. Houlihan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Timothy J. Houlihan see?
In 2024, CMS data shows 142 Original Medicare patients and 802 services for Timothy J. Houlihan. This counts Original Medicare only and measures volume, not quality.
What is Timothy J. Houlihan's NPI number?
1346260494. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Timothy J. Houlihan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients142
Services billed to Medicare802
Different services or procedures64
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)194 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)84 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)47 services
  4. Administration of influenza virus vaccine (G0008)41 services
  5. Influenza vaccine split virus, preservative free (90662)39 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure73%
  • Diabetes32%
  • Arthritis30%
  • Chronic kidney disease29%
  • Ischemic heart disease24%

Hospitals where Timothy J. Houlihan works

Medicare's Facility Affiliation Data lists Timothy J. Houlihan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Timothy J. Houlihan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Timothy J. Houlihan as a member of this group (CMS data updated October 2, 2026).

  • Thedacare, Incorporated647 clinicians in the group

Specialties

Find other Family Practice doctors in Wisconsin →

Other family doctors in New London

Clinicians with the same Medicare primary specialty in New London, WI — not a recommendation.

All family doctors in New London →

Other clinicians in Thedacare, Incorporated

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolMedical College Of Wisconsin
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346260494
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians