DR. MARIELLE YOUNG MD, MPH (5/2017)
NPI 1639667371
Allergy & Immunology in Boston, MA

Q: What is Marielle Young's NPI number?

The NPI number for Marielle Young is 1639667371. It was assigned to this individual provider in the NPPES registry on April 27, 2018.

Q: What is Marielle Young's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Marielle Young was last updated on August 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since April 27, 2018PECOS Enrolled

55 FRUIT ST, BOSTON, MA 02114(617) 726-2687(617) 726-5964 Get Directions Write a Review

NPPES record last updated: August 22, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 22, 2024, Aug 9, 2021, Apr 27, 2018 (3 updates tracked since 2018).

On this page

About Dr. Marielle Young Md, Mph (5/2017) NPPES

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

DR. MARIELLE YOUNG MD, MPH (5/2017) (NPI 1639667371) is an individual allergy & immunology provider in Boston, Massachusetts, licensed in Massachusetts (287737) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639667371

Entity TypeIndividualFemale

Primary Taxonomy207K00000X

Provider Legal NameDR. MARIELLE YOUNGCredential: MD, MPH (5/2017)

Location Address55 FRUIT STBoston, MA 02114-2621

Mailing Address55 Fruit StBoston, MA 02114-2696 · (617) 724-4133 · Fax (617) 724-3947

Phone(617) 726-2687

Fax(617) 726-5964

Sole ProprietorNo

Enumeration DateApril 27, 2018

Last NPPES UpdateAugust 22, 20243 updates tracked since enumeration

NPPES CertifiedAugust 22, 2024

✔ NPI 1639667371 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in MA · 287737

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Also ListedPediatricsTaxonomy 208000000X · License 287737 (MA)

55 FRUIT ST, Boston, MA 02114

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Marielle Young Md, Mph (5/2017) 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

Medicare enrollment records show Marielle Young 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.

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.

STUTI GIRISH SHROFF MD, MBBS

Pathology (Anatomic Pathology)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 726-2971

NANCY WANG M.D.

Internal Medicine (Hematology & Oncology)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (017) 724-4000

DR. DUSAN HANIDZIAR M.D., PH.D.

Anesthesiology

55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114

Suffolk County (617) 726-3030

JOHN JOSEPH DANKO DO

Physical Medicine & Rehabilitation

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 726-2000

DR. MICHAEL ANDREW LOBRITZ M.D, PH.D.

Internal Medicine (Infectious Disease)

55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114

Suffolk County (617) 724-9248

MS. KELLY ELISHA TRECARTIN NP

Nurse Practitioner (Acute Care)

55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114

Suffolk County (617) 726-7400

JAMIE MARIE ALLEN NP

Nurse Practitioner

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 724-4410

DR. DHAVAL SANJEEV KOLTE M.B.B.S., PH.D.

Internal Medicine (Cardiovascular Disease)

55 FRUIT ST
BOSTON, MA 02114

Suffolk County (617) 643-3238

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 Marielle Young's NPI number?

The NPI number for Marielle Young is 1639667371. It was assigned to this individual provider in the NPPES registry on April 27, 2018.

Where is Marielle Young located?

Marielle Young practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2687.

What is Marielle Young's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Marielle Young enrolled in Medicare?

Yes. Marielle Young is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marielle Young's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marielle Young 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 Marielle Young's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marielle Young was last updated on August 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.