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Physician Assistant

Lindsey K. Martens

Works at hospitals in Watertown, WI · Wisconsin

Summary

Lindsey K. Martens is a physician assistant at 123 Hospital Dr, Watertown, WI 53098. Phone: (920) 262-4371. Accepts Medicare assignment. In 2024, Lindsey K. Martens had 91 Original Medicare patients and 118 services. NPI 1093459885. 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.

  • Specialty: Physician assistant
  • Address: 123 Hospital Dr, Watertown, WI 53098 · Directions (3 more locations)
  • Phone: (920) 262‑4371
  • Medicare: Accepts Medicare assignment
  • Hospital: Watertown Memorial Hospital
  • Group practice: Watertown Physician Practices LLC
  • School: graduated 2022
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Lindsey K. Martens, 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 Lindsey K. Martens accept Medicare assignment?
Yes. Medicare's clinician data says Lindsey K. Martens 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 Lindsey K. Martens see?
In 2024, CMS data shows 91 Original Medicare patients and 118 services for Lindsey K. Martens. This counts Original Medicare only and measures volume, not quality.
What is Lindsey K. Martens's NPI number?
1093459885. 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 Lindsey K. Martens, 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 patients91
Services billed to Medicare118
Different services or procedures15
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)23 services
  2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)20 services
  3. Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)14 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)12 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 pressure70%
  • Arthritis40%
  • Diabetes34%
  • Chronic kidney disease31%
  • Anxiety27%

Hospitals where Lindsey K. Martens works

Medicare's Facility Affiliation Data lists Lindsey K. Martens 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.

  • Watertown Memorial HospitalWatertown, WI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 520116

Practice locations

Addresses where Lindsey K. Martens is enrolled with Medicare (CMS data updated October 2, 2026).

  • 123 Hospital DrWatertown, WI 53098
  • 125 Hospital DrWatertown, WI 53098
  • 125 Hospital Dr, Suite 2003Watertown, WI 53098 (920) 262‑4371
  • 1507 Doctors CtWatertown, WI 53094 (920) 261‑4111

Group practices

Medicare enrollment lists Lindsey K. Martens as a member of this group (CMS data updated October 2, 2026).

  • Watertown Physician Practices LLC67 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Wisconsin →

Other physician assistants in Watertown

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

All physician assistants in Watertown →

Other clinicians in Watertown Physician Practices LLC

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

Clinician information

Graduation year2022
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093459885
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