Calumet Internist PC
Calumet Internist PC is a healthcare organization registered as Medical Specialty Clinic/Center in Munster, IN, holding Type 2 (organization) NPI 1659439115 since 2006. The authorized official on file is Lawrence Bernstein, Physician.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1659439115 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Calumet Internist PC |
| Practice address | 9122 COLUMBIA AVE, Munster, IN, 46321 |
| Phone | 2198363366 |
| Enumeration date | 2006-12-05 |
| Last updated in NPPES | 2020-08-22 |
Authorized official
| Name | Lawrence Bernstein |
|---|---|
| Title | Physician |
| Phone | 2198363366 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 261QM2500X | Medical Specialty Clinic/Center | Primary | 50001884A | IN |
Copy-ready billing details
Provider: Calumet Internist PC NPI: 1659439115 Taxonomy: 261QM2500X (Medical Specialty Clinic/Center) Address: 9122 COLUMBIA AVE, Munster, IN, 46321
Verify this record
Cross-check NPI 1659439115 against the authoritative CMS record: view Calumet Internist PC on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is Calumet Internist PC?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.