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

Dr. Arthur H Katz, M.D.

Otolaryngology Physician in Munster, IN · enumerated 2005.

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

National Provider Identifier

1417944109

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Registry record

Entity type Individual (Type 1)

Name Dr. Arthur H Katz

Credential M.D.

Sex Male

Practice address Munster, IN, 46321

Phone (219) 934-9396

Fax (219) 924-7899

Enumeration date Sep 29, 2005

Last updated in NPPES Jan 13, 2017

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

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 036-055188 (IL) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 01027712A (IN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
2275913	Other	IN	AETNA
363140314C	Other	IN	HUMANA
200859940A	Medicaid	IN	-
K34318	Other	IL	MEDICARE ID - TYPE UNSPECIFIED
200859940B	Medicaid	IN	-
520377	Other	IL	UNITED HEALTHCARE
21609195	Other	IL	BLUE CROSS BLUE SHIELD
363140314001	Other	IN	CHAMPUS/TRICARE (ME)
036055188	Medicaid	IL	-
363140314002	Other	IL	CHAMPUS/TRICARE
363140314C	Other	IL	HUMANA
4028726	Other	IN	AETNA
000000095404	Other	IN	ANTHEM BCBS OF IN
2275913	Other	IL	AETNA
363140314	Other	IN	CHAMPUS/TRICARE (MU)
4028726	Other	IL	AETNA
520377	Other	IN	UNITED HEALTHCARE

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

Is NPI 1417944109 active?

Yes, as of the latest NPPES snapshot, NPI 1417944109 is active (record last updated 2017-01-13).

How do I verify Arthur Katz's NPI record?

Cross-check NPI 1417944109 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-13.