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Family Practice

Diane M. Mater, DO

Works at hospitals in Lansing, MI · Michigan

Summary

Dr. Diane M. Mater, DO is a family doctor at 2682 E Grand River Ave, Sparrow Urgent Care East Lansing, East Lansing, MI 48823. Phone: (517) 333-6562. Accepts Medicare assignment. In 2024, Diane M. Mater had 93 Original Medicare patients and 391 services. NPI 1932316114. 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: Family doctor (Medicare lists Family Practice)
  • Address: 2682 E Grand River Ave, Sparrow Urgent Care East Lansing, East Lansing, MI 48823 · Directions
  • Phone: (517) 333‑6562
  • Medicare: Accepts Medicare assignment
  • Hospital: Edward W Sparrow Hospital
  • Group practice: Edward W Sparrow Hospital Association
  • Medical school: Michigan State University College Of Osteopathic Medicine · graduated 2007 (19 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Diane M. Mater, 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 Diane M. Mater accept Medicare assignment?
Yes. Medicare's clinician data says Diane M. Mater 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 Diane M. Mater see?
In 2024, CMS data shows 93 Original Medicare patients and 391 services for Diane M. Mater. This counts Original Medicare only and measures volume, not quality.
What is Diane M. Mater's NPI number?
1932316114. 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 Diane M. Mater, 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 patients93
Services billed to Medicare391
Different services or procedures28
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)144 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)83 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)59 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)36 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)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 cholesterol68%
  • High blood pressure67%
  • Arthritis41%
  • Depression31%
  • Anxiety30%
  • COPD22%

Hospitals where Diane M. Mater works

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

  • 2682 E Grand River Ave, Sparrow Urgent Care East LansingEast Lansing, MI 48823 (517) 333‑6562

Group practices

Medicare enrollment lists Diane M. Mater as a member of this group (CMS data updated October 2, 2026).

  • Edward W Sparrow Hospital Association730 clinicians in the group

Specialties

Find other Family Practice doctors in Michigan →

Other family doctors in East Lansing

Clinicians with the same Medicare primary specialty in East Lansing, MI — not a recommendation.

All family doctors in East Lansing →

Other clinicians in Edward W Sparrow Hospital Association

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

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1932316114
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