1. Home
  2. Directory
  3. Missouri
  4. Saint Louis
  5. Thoracic Surgery Cardiothoracic Vascular Surgery
  6. NPI Profile

MASAYA HIRAYAMA
NPI 1023984960
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Saint Louis, MO

Active since October 16, 2025
1800 S BRENTWOOD BLVD APT 213, SAINT LOUIS, MO 63144(314) 368-2002 Get Directions Write a Review

NPPES record last updated: October 16, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Masaya Hirayama NPPES

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

MASAYA HIRAYAMA (NPI 1023984960) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Saint Louis, Missouri, licensed in Missouri (2025011275) and active in the NPI registry since October 2025.

NPPES Registry Identity

NPI1023984960
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameMASAYA HIRAYAMA
Location Address1800 S BRENTWOOD BLVD APT 213Saint Louis, MO 63144-1838
Mailing Address1800 S Brentwood Blvd Apt 213Saint Louis, MO 63144-1838 · (314) 368-2002
Phone(314) 368-2002
Sole ProprietorNo
Enumeration DateOctober 16, 2025
NPPES CertifiedOctober 16, 2025
✔ NPI 1023984960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
License✔ Licensed in MO · 2025011275
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
1800 S BRENTWOOD BLVD APT 213, Saint Louis, MO 63144
Open in Google Maps ↗

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 Masaya Hirayama's NPI number?

The NPI number for Masaya Hirayama is 1023984960. It was assigned to this individual provider in the NPPES registry on October 16, 2025.

Where is Masaya Hirayama located?

Masaya Hirayama practices at 1800 S Brentwood Blvd Apt 213, Saint Louis, MO 63144. The listed phone number is (314) 368-2002.

What is Masaya Hirayama's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

When was this NPI record last updated?

The NPPES record for Masaya Hirayama was last updated on October 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.