Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1194139923 Individual Practitioner Male Practitioner

Dr. Thoi Hieu Ngo , MD

Surgery • Valhalla, NY

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Thoi Ngo, MD is a certified Surgery practicing in Valhalla, NY. With approximately 12 years of clinical experience since graduating from New York Medical College in 2014, Dr. Ngo delivers high-quality medical care to the local community at 100 WOODS RD.

Dr. Ngo maintains professional affiliations with Westchester Medical Center Advanced Physician Services Pc, Washington University and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include critical care, first, follow-up hospital inpatient care per day, initial hospital care with straightforward or low-level medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

100 Woods Rd

Valhalla, NY 105951530

Telephone 9149096416
Fax 9149096417
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

New York Medical College

Graduation Year

2014

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Valhalla, NY

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
12 Yrs -9.6 yrs vs City Avg
City Avg: 21.6 Yrs
State Avg: 27.8 Yrs
Regional Practice Density
28 Specialists

Practicing in Valhalla, NY (2269 Statewide)

Telehealth Adoption Rate
7.1% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
79.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ngo (12 Years) 12 Yrs
Valhalla Specialty Average (21.6 Years) 21.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99291 Critical care, first 30-74 minutes
55 26 $1170.00 $204.60
99291 Critical care, first 30-74 minutes
52 43 $1170.00 $203.94
99231 Follow-up hospital inpatient care per day, typically 15 minutes
16 16 $138.94 $47.48
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
13 13 $371.92 $125.45

Medical Specialties & State Licenses

CMS Verified: 2026-02-18
Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License NY 341330

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.

Surgery - Surgical Critical Care

NUCC Taxonomy Code: 2086S0102X

State License NY 341330

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
200075875 (MO)

Hospital & Practice Group Affiliations

Washington University

10 Hospital Dr, Saint Peters, MO 633761659

Phone: 6369169000

Westchester Medical Center Advanced Physician Services Pc

95 Grasslands Rd, Valhalla, NY 105951652

Phone: 9144936940

Washington University

1 Barnes Jew Hosp Plz, Saint Louis, MO 631101003

Phone: 3147473000

Westchester Medical Center Advanced Physician Services Pc

100 Woods Rd, Valhalla, NY 105951530

Practice Associates & Co-Workers

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

8 Associated Practitioners
NPI 1083922835

Physician Assistant (Certified), Registered Dietitian, CDCE

Dr. Samantha Norden , MD

Colon & Rectal Surgery

NPI 1114424017

Doctor of Medicine (M.D.)

Dr. Jennifer Cape , MD

Surgery - Plastic and Reconstructive Surgery

NPI 1346964392

Doctor of Medicine (M.D.)

Dr. Odinachi Oguguo , MD

Student in an Organized Health Care Education/Training Program

NPI 1447045836

Doctor of Medicine (M.D.)

Dr. Andrew Gurien , MD

Internal Medicine - Hematology & Oncology

NPI 1629025408

Doctor of Medicine (M.D.)

Dr. Deo Balumuka , MD

Surgery - Plastic and Reconstructive Surgery

NPI 1649774951

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

20 Historical Events
📍
Updated Practice Location January 15, 2026

Registered at 100 WOODS RD, VALHALLA, NY 105951530 (Tel: 9149096416)

📍
Updated Business Mailing Address January 15, 2026

Registered at 19 BRADHURST AVE STE 3100N, HAWTHORNE, NY 105322140 (Tel: 9149099018)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 15, 2026

Surgery (License #341330 in NY)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 03, 2025

Anesthesiology (License #2019034037 in MO)

📍
Updated Business Mailing Address April 17, 2025

Registered at PO BOX 7412011, CHICAGO, IL 606742011 (Tel: 3143625298)

📍
Updated Business Mailing Address April 25, 2024

Registered at PO BOX 60352, SAINT LOUIS, MO 631600352 (Tel: 3143625298)

📍
Updated Practice Location November 15, 2021

Registered at 1 BARNES JEWISH HOSPITAL PLZ, DIV SURG ACCS, SAINT LOUIS, MO 631101003 (Tel: 3143625298)

📍
Updated Business Mailing Address November 15, 2021

Registered at 660 S EUCLID AVE, MSC 8109-43-1160, SAINT LOUIS, MO 631101010 (Tel: 3147472829)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 15, 2021

Surgery (License #2019034037 in MO)

📍
Updated Business Mailing Address August 26, 2020

Registered at 660 S EUCLID AVE, CB 8109, SAINT LOUIS, MO 631101010 (Tel: 3143625298)

👤
Provider Name / Credentials Updated August 26, 2020

Recorded as THOI NGO, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 26, 2020

Surgery (License #2019034037 in MO)

📍
Updated Practice Location October 29, 2019

Registered at 1 BARNES JEWISH HOSPITAL PLZ, SAINT LOUIS, MO 631101003 (Tel: 3143625000)

📍
Updated Business Mailing Address October 29, 2019

Registered at 660 S EUCLID AVE # 8054, SAINT LOUIS, MO 631101010 (Tel: 3143625000)

NPI Profile Active June 19, 2014

NPI status registered as active in NPPES database

📍
Updated Practice Location June 19, 2014

Registered at 100 MADISON AVE, DEPARTMENT OF SURGERY, BOX 88, MORRISTOWN, NJ 079606136 (Tel: 9739715684)

📍
Updated Business Mailing Address June 19, 2014

Registered at 100 MADISON AVE, DEPARTMENT OF SURGERY, BOX 88, MORRISTOWN, NJ 079606136 (Tel: 9739715684)

👤
Provider Name / Credentials Updated June 19, 2014

Recorded as THOI NGO, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 19, 2014

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration June 19, 2014

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: 1194139923
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 19, 2014
Last Update: February 18, 2026
Sole Proprietor: No

Mailing Address

19 Bradhurst Ave Ste 3100n

Hawthorne, NY 105322140

Phone: 9149099018

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.