DR. STEPHEN C. SCHWARTZ (M.D.) – Hematology & Oncology Physician, NPI 1871580092
Hematology & Oncology Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
185 MEDICAL ONCOLOGY in MI
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Provider Addresses for DR. STEPHEN C. SCHWARTZ (M.D.)
Huron Valley-Sinai Hospital, 1, William Carls Drive, Commerce Charter Township, Oakland County, Michigan, 48382, United States
COMMERCE TWP, MI 483822201
Phone: (248) 522-0222
Fax: (248) 522-0225
Type: Mailing
834 Sheridan St
Port Townsend, WA 983682443
Phone: (360) 385-2200
Type: Location
300 North Ave
Battle Creek, MI 490173307
Phone: (269) 245-8660
Type: Location
1 Medical Center Dr
Lebanon, NH 037560001
Phone: (603) 650-5000
Type: Location
1440 E Mullan Ave
Post Falls, ID 838549064
Phone: (208) 625-4900
Fax: (208) 625-4911
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $71.
Total Amount is formed as General ($71) + Research ($0) + Ownership ($0) = $71.
Last reported payment date: 2024-07-31 • Largest payer in this snapshot: Tempus AI, Inc ($24).
Total Amount
$71
General + Research + Ownership
Payments
3
Total payment records
General Amount
$71
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Tempus AI, Inc | $24 |
| Adaptive Biotechnologies Corporation | $24 |
| Novartis Pharmaceuticals Corporation | $22 |
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: 2025-12-22
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 5 Medicare enrollment records; no due dates published yet.
Enrollment records
5
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 |
|---|---|---|---|---|
| I20060323000702 | I | Hematology/Oncology | MI | TBD |
| I20230303000537 | I | Internal Medicine | VA | TBD |
| I20240912003206 | I | Medical Oncology | NH | TBD |
| I20241003001800 | I | Medical Oncology | VT | TBD |
| I20251222003811 | I | Medical Oncology | ID | 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 | 114 | 68 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 37 | 37 | $0 |
Insurance plans in this area (ZIP 48382)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | NY | |
| Emergency Medicine | ID | |
| Physician Assistant | ID | |
| Family Practice | ID | |
| Cardiovascular Disease (Cardiology) | TX | |
| Pulmonary Disease, Critical Care (Intensivists) | ID | |
| Nurse Practitioner | ID | |
| Nurse Practitioner | ID | |
| E N D O C R I N O L O G Y | ID | |
| Registered Dietitian Or Nutrition Professional | ID |
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