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

DR. ALLEN MAO MD
NPI 1427634104
Radiology - Diagnostic Radiology in Boston, MA

Active since March 22, 2021
75 FRANCIS ST, BOSTON, MA 02115(617) 732-5500 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 28, 2026, Mar 23, 2021 (2 updates tracked since 2021).

About Dr. Allen Mao Md NPPES

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

DR. ALLEN MAO MD (NPI 1427634104) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Florida (ME168127) and active in the NPI registry since March 2021.

NPPES Registry Identity

NPI1427634104
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. ALLEN MAOCredential: MD
Location Address75 FRANCIS STBoston, MA 02115-6106
Mailing Address9201 Sw 108th Pl Unit 434Ocala, FL 34481-7945 · (256) 856-0347
Sole ProprietorNo
Enumeration DateMarch 22, 2021
Last NPPES UpdateSeptember 28, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2026
✔ NPI 1427634104 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses✔ Licensed in FL · ME168127✔ Licensed in MA · 3020029
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
75 FRANCIS ST, Boston, MA 02115

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.

Internal Medicine (Gastroenterology)
75 FRANCIS ST
BOSTON, MA 02115
Neurological Surgery
75 FRANCIS ST
BOSTON, MA 02115
Student in an Organized Health Care Education/Training Program
75 FRANCIS ST
BOSTON, MA 02115
Radiology (Diagnostic Radiology)
75 FRANCIS ST, DEPARTMENT OF RADIOLOGY
BOSTON, MA 02115
Surgery (Vascular Surgery)
75 FRANCIS ST, BRIGHAM AND WOMEN'S HOSPITAL
BOSTON, MA 02115
Internal Medicine (Infectious Disease)
75 FRANCIS ST
BOSTON, MA 02115
Emergency Medicine
75 FRANCIS ST, BWH DEPT. OF EMERGENCY MEDICINE
BOSTON, MA 02115
Physician Assistant
75 FRANCIS ST
BOSTON, MA 02115

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 Allen Mao's NPI number?

The NPI number for Allen Mao is 1427634104. It was assigned to this individual provider in the NPPES registry on March 22, 2021.

Where is Allen Mao located?

Allen Mao practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.

What is Allen Mao's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

When was this NPI record last updated?

The NPPES record for Allen Mao was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.