1. Home
  2. Directory
  3. Massachusetts
  4. Boston
  5. Pediatrics
  6. NPI Profile

DR. MARY STEPHANIE HUANG MD
NPI 1811987142
Pediatrics - Pediatric Hematology-Oncology in Boston, MA

Active since October 27, 2005PECOS Enrolled
55 FRUIT STREET YAW 8 B, BOSTON, MA 02114(617) 726-2737(617) 724-0702 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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

About Dr. Mary Stephanie Huang Md NPPES

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

DR. MARY STEPHANIE HUANG MD (NPI 1811987142) is an individual pediatric hematology-oncology provider in Boston, Massachusetts, licensed in Massachusetts (74556) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811987142
Entity TypeIndividualFemale
Primary Taxonomy2080P0207X
Provider Legal NameDR. MARY STEPHANIE HUANGCredential: MD
Location Address55 FRUIT STREET YAW 8 BBoston, MA 02114-2696
Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894
Phone(617) 726-2737
Fax(617) 724-0702
Sole ProprietorNo
Enumeration DateOctober 27, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1811987142 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in MA · 74556
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
Also ListedPediatricsTaxonomy 208000000X · License 74556 (MA)
55 FRUIT STREET YAW 8 B, Boston, MA 02114
Open in Google Maps ↗

Other Identifiers 3

OtherJ11340MA · Bcbs Ma
Medicaid3124487MA
Other074556MA · Tufts Health Plan

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mary Stephanie Huang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Mary Huang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Massachusetts General Physicians Organization Inc
Same address
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287
The General Hospital Corporation
Same address
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Mary Huang's NPI number?

The NPI number for Mary Huang is 1811987142. It was assigned to this individual provider in the NPPES registry on October 27, 2005.

Where is Mary Huang located?

Mary Huang practices at 55 Fruit Street Yaw 8 B, Boston, MA 02114. The listed phone number is (617) 726-2737.

What is Mary Huang's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Mary Huang enrolled in Medicare?

Yes. Mary Huang is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mary Huang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Huang reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Huang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Huang accept?

Health plans from Taro Health list Mary Huang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary Huang 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 3 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.