Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael J Chmielewski, MD

Obstetrics & Gynecology Physician in Arlington, TX · enumerated 2005 · practices at Laboratory Corporation of America.

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

National Provider Identifier

1659378388

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael J Chmielewski

Credential MD

Sex Male

Practice address 3201 Matlock Rd Ste 220, Arlington, TX, 76015

Phone (469) 506-1671

Enumeration date Jul 7, 2005

Last updated in NPPES Apr 8, 2021

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License MD058381L (PA) 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
0994912000	Other	-	INDEPENDENCE
3799012	Other	-	AETNA
0015878910003	Medicaid	PA	-
232261120	Other	-	COMMERCIAL
30022252	Other	-	OTHER HMO
000880815	Other	-	BS
100769	Other	-	OTHER BS

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

How do I verify Michael Chmielewski's NPI record?

Cross-check NPI 1659378388 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659378388 active?

Yes, as of the latest NPPES snapshot, NPI 1659378388 is active (record last updated 2021-04-08).

Other providers at this practice address

Browse all →

Keith Storts Obstetrics & Gynecology Physician · Arlington, TX NPI 1184626137 Nicole Tenzel Obstetrics & Gynecology Physician · Arlington, TX NPI 1184018681 Laboratory Corporation of America Clinical Medical Laboratory · Arlington, TX NPI 1851065973 Mira Ibrahim Student in an Organized Health Care Education/Training Program · Arlington, TX NPI 1568221125

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-08.