DR. BENJAMIN WALLBRUNN FELDER (DO) – Internal Medicine Physician, NPI 1003261041
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,218 INTERNAL MEDICINE in MI
Provider Addresses for DR. BENJAMIN WALLBRUNN FELDER (DO)
600 BROADWAY AVE NW APT 307
GRAND RAPIDS, MI 495047318
Phone: (520) 440-3152
Type: Mailing
281 1st Ave
New York, NY 100032925
Phone: (212) 844-1808
Type: Location
600 Broadway Ave NW Apt 307
Grand Rapids, MI 495047318
Phone: (520) 440-3152
Type: Location
FIRST AVENUE AT 16TH STREET
NEW YORK, NY 10003
Phone: (212) 844-1808
Type: Location
1 HEALTHY WAY
OCEANSIDE, NY 115721551
Phone: (516) 632-3666
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $27.
Total Amount is formed as General ($27) + Research ($0) + Ownership ($0) = $27.
Last reported payment date: 2024-03-06 • Largest payer in this snapshot: Kiniksa Pharmaceuticals International, plc ($27).
Total Amount
$27
General + Research + Ownership
Payments
1
Total payment records
General Amount
$27
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Kiniksa Pharmaceuticals International, plc | $27 |
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: 2022-09-21
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 |
|---|---|---|---|---|
| I20220921001783 | I | Internal Medicine | NY | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 143 | 81 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 88 | 50 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 49 | 46 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 27 | 27 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 12 | 12 | $0 |
Insurance plans in this area (ZIP 49504)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Orthopedic Surgery | NY | |
| Vascular Surgery | NY | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NY | |
| R H E U M A T O L O G Y | NY | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NY | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NY | |
| Internal Medicine | NY | |
| Pulmonary Disease, Critical Care (Intensivists), Internal Medicine | NY | |
| Critical Care (Intensivists), Internal Medicine | FL | |
| Orthopedic Surgery | PA |
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