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

Family Practice

Sarah J. Lewis, DO

Works at hospitals in Rapid City, SD · Spearfish, SD · Sturgis, SD · South Dakota

Summary

Dr. Sarah J. Lewis, DO is a family doctor at 61 Charles St, Deadwood, SD 57732. Phone: (605) 717-6000. Accepts Medicare assignment. In 2024, Sarah J. Lewis had 116 Original Medicare patients and 188 services. NPI 1124581384. 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 Sarah J. Lewis, 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 Sarah J. Lewis accept Medicare assignment?
Yes. Medicare's clinician data says Sarah J. Lewis 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 Sarah J. Lewis see?
In 2024, CMS data shows 116 Original Medicare patients and 188 services for Sarah J. Lewis. This counts Original Medicare only and measures volume, not quality.
What is Sarah J. Lewis's NPI number?
1124581384. 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 Sarah J. Lewis, 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 patients116
Services billed to Medicare188
Different services or procedures14
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)78 services
  2. Hospital discharge day management, more than 30 minutes (99239)42 services
  3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)29 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)11 services
  5. Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)11 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 cholesterol68%
  • Arthritis44%
  • Heart failure42%
  • Ischemic heart disease35%
  • COPD35%

Hospitals where Sarah J. Lewis works

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

Group practices

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

  • Monument Health Network Inc160 clinicians in the group

Specialties

Find other Family Practice doctors in South Dakota →

Other family doctors in South Dakota

Clinicians with the same Medicare primary specialty in South Dakota — not a recommendation.

All family doctors in South Dakota →

Other clinicians in Monument Health Network Inc

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

Clinician information

CredentialDO
Medical schoolAt Still University Of Health Sciences, College Of Osteo Med, Kirksville
Graduation year2019 (7 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1124581384
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