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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.

RONALD A GLASS M.D.
NPI 1962441428
Surgery in Saint Charles, MO

Active since June 06, 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 16, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Ronald A Glass M.d. NPPES

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

RONALD A GLASS M.D. (NPI 1962441428) is an individual surgery provider in Saint Charles, Missouri, licensed in Missouri (R7F58) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1962441428
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameRONALD A GLASSCredential: M.D.
Location Address300 1ST CAPITOL DRSaint Charles, MO 63301-2844
Mailing Address1836 Lackland Hill Pkwy, Attn: CredentialingSaint Louis, MO 63146-3572 · (314) 989-0300 · Fax (314) 810-1399
Phone(636) 947-5057
Sole ProprietorNo
Enumeration DateJune 6, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1962441428 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MO · R7F58
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License R7F58 (MO)
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 Ronald Glass's NPI number?

The NPI number for Ronald Glass is 1962441428. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Ronald Glass located?

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

What is Ronald Glass's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

When was this NPI record last updated?

The NPPES record for Ronald Glass 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 36 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.