DR. ROBERT WOODWORTH SHAFFER (MD) – Emergency Medicine Physician, NPI 1083608640
Emergency Medicine Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for DR. ROBERT WOODWORTH SHAFFER (MD)
KMS Building, 3621, South State Street, Ann Arbor, Washtenaw County, Michigan, 48108, United States
700 KMS PLACE
ANN ARBOR, MI 48108
Phone: (734) 936-2047
Type: Mailing
Mott Children's Hospital and Von Voigtlander Women's Hospital, 1500, East Medical Center Drive, Ann Arbor, Washtenaw County, Michigan, 48109, United States
B1 FLOOR UNIVERSITY HOSPITAL RECP EMERGENCY
ANN ARBOR, MI 481095301
Phone: (734) 936-6666
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 $55.
Total Amount is formed as General ($55) + Research ($0) + Ownership ($0) = $55.
Last reported payment date: 2024-08-06 • Largest payer in this snapshot: Phathom Pharmaceuticals, Inc. ($55).
Total Amount
$55
General + Research + Ownership
Payments
3
Total payment records
General Amount
$55
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Phathom Pharmaceuticals, Inc. | $55 |
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: 2008-10-10
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20081010000260 | I | Emergency Medicine | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 373 | 351 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 149 | 148 | $0 |
| 93308 | Ultrasound of heart, follow-up | 20 | 20 | $0 |
| 99291 | Critical care, first 30-74 minutes | 19 | 19 | $0 |
Insurance plans in this area (ZIP 48108)
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