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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Nirmal Nair, MD

Endocrinology, Diabetes & Metabolism Physician in Munster, IN · enumerated 2017.

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

National Provider Identifier

1336674399

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Registry record

Entity type Individual (Type 1)
Name Nirmal Nair
Credential MD
Sex Male
Practice address Munster, IN, 46321
Phone (219) 922-3020
Fax (219) 922-3023
Enumeration date Apr 27, 2017
Last updated in NPPES Oct 13, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01088182A (IN) Secondary
207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 01088182A (IN) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

Where does Nirmal Nair practice?
The practice location on file with NPPES is in Munster, IN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Nirmal Nair?
The National Provider Identifier (NPI) for Nirmal Nair is 1336674399, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-13.