Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marla Krukowski, DO

Infectious Disease Physician in Hammond, IN · enumerated 2015 · practices at Medical Specialists Inc., PC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1174919229

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Registry record

Entity type Individual (Type 1)

Name Marla Krukowski

Credential DO

Sex Female

Practice address 5529 Hohman Ave, Hammond, IN, 46320

Phone (219) 853-7100

Fax (219) 937-5958

Enumeration date Apr 15, 2015

Last updated in NPPES May 4, 2023

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036.146274 (IL) Secondary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 02005939A (IN) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 02005939A (IN) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 36146274 (IL) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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 → Validate an NPI →

Frequently asked questions

Is NPI 1174919229 active?

Yes, as of the latest NPPES snapshot, NPI 1174919229 is active (record last updated 2023-05-04).

How do I verify Marla Krukowski's NPI record?

Cross-check NPI 1174919229 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Luis Manyari Internal Medicine Physician · Hammond, IN NPI 1144297243 Suyin Chi Infectious Disease Physician · Hammond, IN NPI 1346482874 Medical Specialists Inc., PC Internal Medicine Physician · Hammond, IN NPI 1013249697

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-04.