Active NPI 1659958239 Individual Practitioner Male Practitioner

Dr. John Leong , MD

General Practice • San Antonio, TX

Professional Overview & Biography Verified Profile Summary

Dr. John Leong, MD is a registered healthcare professional specializing in General Practice in San Antonio, TX. Practice services are available at 1100 WILFORD HALL LOOP under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1100 Wilford Hall Loop

San Antonio, TX 782365638

Telephone 6012963963

Fax 2102927412

Associated Practice Facility / Clinic

🏢 Merit Health Wesley Facility NPI 1881056190

Specialty Benchmarks & Practice Insights

Comparative analytics for General Practice in San Antonio, TX

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 25.2 Yrs

State Avg: 27.9 Yrs

Regional Practice Density

95 Specialists

Practicing in San Antonio, TX (1183 Statewide)

Telehealth Adoption Rate

2.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-07-13

General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

State License MS 30372

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Dr. Bradley Williams , DO

Emergency Medicine

NPI 1023512464

Doctor of Osteopathic Medicine (D.O.)

Dr. Miju Kurtzweil , DO

Emergency Medicine

NPI 1033650031

Doctor of Osteopathic Medicine (D.O.)

Dr. Maitree Patel , MD

Student in an Organized Health Care Education/Training Program

NPI 1033812268

Doctor of Medicine (M.D.)

Dr. Carl Johns , DO

Emergency Medicine

NPI 1043714264

Doctor of Osteopathic Medicine (D.O.)

Dr. Adhvith Reddivari , DO

Emergency Medicine

NPI 1063917615

Doctor of Osteopathic Medicine (D.O.)

Cindy Nguyen

Student in an Organized Health Care Education/Training Program

NPI 1083309868

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events

📍

Updated Practice Location July 13, 2026

Registered at 1100 WILFORD HALL LOOP, SAN ANTONIO, TX 782365638 (Tel: 6012963963)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 13, 2026

General Practice (License #30372 in MS)

✅

NPI Profile Active March 28, 2021

NPI status registered as active in NPPES database

📍

Updated Practice Location March 28, 2021

Registered at 5001 HARDY ST, HATTIESBURG, MS 394021308 (Tel: 6012963963)

📍

Updated Business Mailing Address March 28, 2021

Registered at 3056 NUMANA RD, HONOLULU, HI 968192905 (Tel: 8088242908)

👤

Provider Name / Credentials Updated March 28, 2021

Recorded as JOHN LEONG, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 28, 2021

Student in an Organized Health Care Education/Training Program

🟢

Initial NPI Registration & Enumeration March 28, 2021

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1659958239

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: March 28, 2021

Last Update: July 13, 2026

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

3056 Numana Rd

Honolulu, HI 968192905

Phone: 2106711110

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.