DR. ALAN A NGUYEN M.D.
NPI 1356892293
Pediatrics - Pediatric Allergy/Immunology in Boston, MA
About Dr. Alan A Nguyen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALAN A NGUYEN M.D. (NPI 1356892293) is an individual pediatric allergy/immunology provider in Boston, Massachusetts, licensed in Massachusetts (292418) and active in the NPI registry since October 2016. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 3
Accepted 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. Alan A Nguyen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alan Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 195 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
BOSTON, MA 02115
BOSTON, MA 02115
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 Alan Nguyen's NPI number?
The NPI number for Alan Nguyen is 1356892293. It was assigned to this individual provider in the NPPES registry on October 15, 2016.
Where is Alan Nguyen located?
Alan Nguyen practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Alan Nguyen's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Allergy/Immunology, with taxonomy code 2080P0201X.
Is Alan Nguyen enrolled in Medicare?
Yes. Alan Nguyen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alan Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alan Nguyen reassigns Medicare benefits to 2 organizations: Children's Hospital Pediatric Associates, Inc (Boston, MA) and Child Health Foundation Of Boston, Inc. (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 Alan Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alan Nguyen accept?
Health plans from WellSense Health Plan list Alan Nguyen 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 Alan Nguyen was last updated on July 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# Dr. Alan A Nguyen, M.D. · NPI 1356892293
Pediatric Allergy/Immunology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 15, 2016.
## Identity
- **NPI:** 1356892293 (Entity type: Individual)
- **Enumerated:** October 15, 2016
- **Primary specialty:** Pediatrics - Pediatric Allergy/Immunology · taxonomy 2080P0201X
- **State license:** 292418 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-6000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA); Child Health Foundation Of Boston, Inc. (NPI 1619969920, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 27, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1356892293) · Data from the CMS NPPES public registry.