Calumet Internists, P.C.
NPI 1659300317 · Internal Medicine Physician · Hammond, IN
Calumet Internists, P.C. is a Internal Medicine Physician organization in Hammond, IN (NPI 1659300317).
Provider details
- NPI number
- 1659300317
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Lawrence Bernstein, Owner(219) 931-7400
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-02
- Last updated
- 2020-08-22
Frequently asked questions
- What is Calumet Internists, P.C.'s NPI number?
- Calumet Internists, P.C.'s National Provider Identifier (NPI) is 1659300317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Calumet Internists, P.C.?
- Calumet Internists, P.C. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Calumet Internists, P.C. located?
- Calumet Internists, P.C.'s practice location on file with NPPES is 5500 S Hohman Ave, Hammond, IN 46320-1965.
- What is Calumet Internists, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Calumet Internists, P.C. is (219) 931-7400.
- Who is the authorized official for Calumet Internists, P.C.?
- The authorized official listed on Calumet Internists, P.C.'s NPPES record is Lawrence Bernstein, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Calumet Internists, P.C.'s NPI active?
- Yes — Calumet Internists, P.C.'s NPI (1659300317) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.