Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Lawton Delisser, MD

Works at hospitals in Medford, WI · Antigo, WI · Marshfield, WI … · Wisconsin, Pennsylvania

Summary

Dr. Lawton Delisser, MD is an emergency medicine doctor at 1000 N Oak Ave, Marshfield, WI 54449. Phone: (715) 387-5511. Accepts Medicare assignment. In 2024, Lawton Delisser had 472 Original Medicare patients and 549 services. NPI 1366499378. 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 Lawton Delisser, 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 Lawton Delisser accept Medicare assignment?
Yes. Medicare's clinician data says Lawton Delisser 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 Lawton Delisser see?
In 2024, CMS data shows 472 Original Medicare patients and 549 services for Lawton Delisser. This counts Original Medicare only and measures volume, not quality.
What is Lawton Delisser's NPI number?
1366499378. 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 Lawton Delisser, 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 patients472
Services billed to Medicare549
Different services or procedures23
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)220 services
  2. Emergency department visit with moderate level of medical decision making (99284)175 services
  3. Emergency department visit with low level of medical decision making (99283)46 services
  4. Critical care, first 30-74 minutes (99291)45 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)25 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 blood pressure75%
  • High cholesterol75%
  • Arthritis55%
  • Anxiety45%
  • Ischemic heart disease43%
  • Depression40%

Hospitals where Lawton Delisser works

Medicare's Facility Affiliation Data lists Lawton Delisser 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 Lawton Delisser is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Lawton Delisser as a member of these groups (CMS data updated October 2, 2026).

  • MCHS Hospitals Inc1,197 clinicians in the group
  • Phoenixville Clinic Company LLC134 clinicians in the group
  • Pottstown Clinic Company LLC111 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Wisconsin →

Other emergency medicine doctors in Marshfield

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

All emergency medicine doctors in Marshfield →

Other clinicians in MCHS Hospitals Inc

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

Clinician information

CredentialMD
Medical schoolMedical College Of Pennsylvania
Graduation year1996 (30 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1366499378
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