DR. MARK W. SCHAAR (MD) – Family Medicine Physician, NPI 1932180148
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,418 FAMILY PRACTICE in MI
Provider Addresses for DR. MARK W. SCHAAR (MD)
3955 PATIENT CARE DR STE A
LANSING, MI 489114271
Phone: (517) 374-7600
Fax: (885) 480-9150
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 254 Open Payments records for all available years, with a total value of $4,911.
Total Amount is formed as General ($4,911) + Research ($0) + Ownership ($0) = $4,911.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: ABBVIE INC. ($650).
Total Amount
$4,911
General + Research + Ownership
Payments
254
Total payment records
General Amount
$4,911
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $650 |
| PFIZER INC. | $545 |
| Otsuka America Pharmaceutical, Inc. | $498 |
| GlaxoSmithKline, LLC. | $465 |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | $194 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-08-31
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040831000028 | I | Family Practice | MI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 173 | 77 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 48 | 48 | $0 |
| G0444 | Annual depression screening, 5 to 15 minutes | 45 | 45 | $0 |
| 83036 | Hemoglobin a1c level | 33 | 17 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 21 | 21 | $0 |
Insurance plans in this area (ZIP 48911)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physical Therapist In Private Practice | WV | |
| Occupational Therapist In Private Practice | PA | |
| Occupational Therapist In Private Practice | DC | |
| Internal Medicine | MI | |
| Anesthesiology, Interventional Pain Management | MI | |
| Occupational Therapist In Private Practice | WV | |
| Family Practice | MI | |
| Family Practice | MI | |
| Physical Therapist In Private Practice | MO | |
| Occupational Therapist In Private Practice | MD |
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