Quick answers
- Does Douglas W. Lynch accept Medicare assignment?
- Yes. Medicare's clinician data says Douglas W. Lynch 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 Douglas W. Lynch see?
- In 2024, CMS data shows 926 Original Medicare patients and 2,765 services for Douglas W. Lynch. This counts Original Medicare only and measures volume, not quality.
- What is Douglas W. Lynch's NPI number?
- 1174767842. 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 Douglas W. Lynch, 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 patients | 926 |
|---|---|
| Services billed to Medicare | 2,765 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)952 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)376 services
- Blood smear interpretation by physician with written report (85060)238 services
- Special stained specimen slides to examine tissue, initial procedure (88342)225 services
- Pathology examination of tissue using a microscope, moderately high complexity (88307)138 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%
- Arthritis47%
- Ischemic heart disease38%
- Chronic kidney disease32%
- Diabetes31%
Hospitals where Douglas W. Lynch works
Medicare's Facility Affiliation Data lists Douglas W. Lynch 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.
- Hawarden Regional HealthcareHawarden, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161311
- Sanford Medical Center AberdeenAberdeen, SD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 430097
- Sanford Usd Medical CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 430027
- Sanford Worthington Medical CenterWorthington, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240022
- United Hospital DistrictBlue Earth, MN · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 241369
Practice locations
Addresses where Douglas W. Lynch is enrolled with Medicare (CMS data updated October 2, 2026).
- 1301 W 18th StSioux Falls, SD 57105
- 1305 W 18th StSioux Falls, SD 57105
- 525 N Foster StMitchell, SD 57301 (605) 995‑5635
- PO Box, Suite 5074Sioux Falls, SD 57117
Group practices
Medicare enrollment lists Douglas W. Lynch as a member of these groups (CMS data updated October 2, 2026).
- Sanford Clinic268 clinicians in the group
- Huron Regional Medical Center Inc46 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Other clinicians in Sanford Clinic
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Sanford School Of Medicine Of University Of South Dakota |
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174767842 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians