CARL B WALLACH (M.D.) – Gastroenterology Physician, NPI 1962593947
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
757 GASTROENTEROLOGY in NJ
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Provider Addresses for CARL B WALLACH (M.D.)
Old Short Hills Road, Short Hills, Millburn, Essex County, New Jersey, 07039, United States
SUITE 217
WEST ORANGE, NJ 070521000
Phone: (973) 731-4600
Fax: (973) 731-0525
Type: Mailing
Madison Avenue, Morristown, Morris County, New Jersey, 07960, United States
MORRISTOWN, NJ 079607357
Phone: (973) 455-0404
Fax: (973) 540-8788
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 444 Open Payments records for all available years, with a total value of $15,681.
Total Amount is formed as General ($15,681) + Research ($0) + Ownership ($0) = $15,681.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: PFIZER INC. ($8,777).
Total Amount
$15,681
General + Research + Ownership
Payments
444
Total payment records
General Amount
$15,681
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $8,777 |
| ABBVIE INC. | $1,509 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | $859 |
| Celgene Corporation | $678 |
| QOL Medical, LLC | $420 |
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: 2010-08-17
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 |
|---|---|---|---|---|
| I20100817000524 | I | Gastroenterology | NJ | 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 | 521 | 383 | $0 |
| 99441 | Telephone medical discussion with physician, 5-10 minutes | 273 | 195 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 257 | 256 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 213 | 213 | $0 |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | 144 | 144 | $0 |
Insurance plans in this area (ZIP 07052)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | CT | |
| P A T H O L O G Y | NJ | |
| A N E S T H E S I O L O G Y | NJ | |
| P A T H O L O G Y | NJ | |
| - | NJ | |
| P A T H O L O G Y | NJ | |
| G A S T R O E N T E R O L O G Y | NJ | |
| A N E S T H E S I O L O G Y | CT | |
| A N E S T H E S I O L O G Y | NJ | |
| - | NJ |
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