Carl B. Wallach, M.D.
NPI 1962593947ActiveIndividual· Internal Medicine, Gastroenterology· Morristown, NJ
Internal Medicine, Gastroenterology (M.D.) in Morristown, New Jersey, trained at University of Miami, Lm Miller School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $1,912,149 for 3,076 claims, against $234,210 paid for services in 2024. Pfizer Inc. was the largest of 19 companies reporting payments in 2025, $5,485 in all, mostly speaking and faculty fees.
Overview
| NPI | 1962593947 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 27, 2006 |
| Last updated in NPPES | Sep 8, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MA05476300 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,104 |
|---|---|
| Services billed | 2,123 across 29 procedure codes |
| Paid by Medicare | $234,210 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,076 · 5,523 30-day fills |
|---|---|
| Patients | 833 |
| Total drug cost | $1,912,149 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | University of Miami, Lm Miller School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Barnabas Health MultispecialtyMorristown, NJ · 23 clinicians
Hospital affiliations
- Ahs Hospital CorpHackettstown, NJ
- Morristown Medical CenterMorristown, NJ
Industry payments (Open Payments)
- 2025$5,485 · 121 payments from 19 companies
- 2024$12,325 · 238 payments from 27 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $3,420 | 11 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $381.11 | 29 |
| Abbvie Inc. | $319.86 | 20 |
| Phathom Pharmaceuticals, Inc. | $240.02 | 4 |
| Intercept Pharmaceuticals, Inc. | $227.70 | 6 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,275 · 1 payment
- Food and Beverage$2,210 · 120 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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