Quick answers
- Does Mary L. Barringer accept Medicare assignment?
- Yes. Medicare's clinician data says Mary L. Barringer 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 Mary L. Barringer see?
- In 2024, CMS data shows 98 Original Medicare patients and 139 services for Mary L. Barringer. This counts Original Medicare only and measures volume, not quality.
- What is Mary L. Barringer's NPI number?
- 1952647083. 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 Mary L. Barringer, 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 | 98 |
|---|---|
| Services billed to Medicare | 139 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)74 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)44 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).
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)70%
- High blood pressure66%
- High cholesterol66%
- Arthritis46%
- Anxiety35%
- Depression34%
Hospitals where Mary L. Barringer works
Medicare's Facility Affiliation Data lists Mary L. Barringer 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.
- Beaumont Hospital - DearbornDearborn, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230020
- Edward W Sparrow HospitalLansing, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230230
- Memorial HealthcareOwosso, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230121
- Sparrow Ionia HospitalIonia, MI · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 231331
- University of Michigan Health - Sparrow EatonCharlotte, MI · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 231327
Practice locations
Addresses where Mary L. Barringer is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1200 E Michigan Ave, 325 Sparrow Women'S HealthLansing, MI 48912 (517) 364‑5610
- 1215 E Michigan AveLansing, MI 48912 (517) 364‑5640
- 245 S 2nd StCarson City, MI 48811
- 401 E Elm StCarson City, MI 48811 (989) 584‑6217
- 401 E Elm St, Sparrow Medical Group General Surgery CarsoCarson City, MI 48811 (989) 584‑6217
Group practices
Medicare enrollment lists Mary L. Barringer as a member of these groups (CMS data updated October 2, 2026).
- Edward W Sparrow Hospital Association730 clinicians in the group
- Sparrow Carson Hospital64 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Lansing
Clinicians with the same Medicare primary specialty in Lansing, MI — not a recommendation.
Other clinicians in Edward W Sparrow Hospital Association
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| School | Wayne State University School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952647083 |
| 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