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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

BAHAELDEEN A LAZ M.D.
NPI 1720031784
Internal Medicine in Saint Charles, MO

Active since May 18, 2006
300 1ST CAPITOL DR, SAINT CHARLES, MO 63301(636) 947-5057 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Bahaeldeen A Laz M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BAHAELDEEN A LAZ M.D. (NPI 1720031784) is an individual internal medicine provider in Saint Charles, Missouri, licensed in Missouri (1999142855) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1720031784
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameBAHAELDEEN A LAZCredential: M.D.
Location Address300 1ST CAPITOL DRSaint Charles, MO 63301-2844
Mailing Address1836 Lackland Hill Pkwy, Att: CredentialingSaint Louis, MO 63146-3572 · (314) 989-0300 · Fax (314) 810-1399
Phone(636) 947-5057
Sole ProprietorNo
Enumeration DateMay 18, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1720031784 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 1999142855
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
300 1ST CAPITOL DR, Saint Charles, MO 63301
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KATHLEEN F. CHRISTLIEB PA
Physician Assistant
300 1ST CAPITOL DR
SAINT CHARLES, MO 63301
St. Charles County (636) 947-5000
JULIE L ROACH CRNA
Nurse Anesthetist, Certified Registered
300 1ST CAPITOL DR
SAINT CHARLES, MO 63301
St. Charles County (314) 989-3000
DR. ROMEL IZQUIERDO-MALON M.D.
Internal Medicine
300 1ST CAPITOL DR
SAINT CHARLES, MO 63301
St. Charles County (314) 317-0600
RACHAEL KING RD
Dietitian, Registered
300 1ST CAPITOL DR
SAINT CHARLES, MO 63301
St. Charles County (636) 947-5156
ANGELA GLASS MSOTR/L
Occupational Therapist
300 1ST CAPITOL DR
SAINT CHARLES, MO 63301
St. Charles County (636) 947-5000
FRANK S CALANDRINO JR MD LLC
Internal Medicine (Pulmonary Disease)
300 1ST CAPITOL DR
SAINT CHARLES, MO 63301
St. Charles County (314) 330-8616
DR. DAVID N MAYWRIGHT PHARMD
Pharmacist
300 1ST CAPITOL DR
SAINT CHARLES, MO 63301
St. Charles County (314) 541-9482
ANTHONY W JENNINGS M.D.
Emergency Medicine
300 1ST CAPITOL DR
SAINT CHARLES, MO 63301
St. Charles County (636) 947-5000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Bahaeldeen Laz's NPI number?

The NPI number for Bahaeldeen Laz is 1720031784. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Bahaeldeen Laz located?

Bahaeldeen Laz practices at 300 1st Capitol Dr, Saint Charles, MO 63301. The listed phone number is (636) 947-5057.

What is Bahaeldeen Laz's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Bahaeldeen Laz was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.