DR. JOHN L SULLIVAN (M.D.) – Pediatric Allergy/Immunology Physician, NPI 1821072547

DR. JOHN L SULLIVAN (M.D.) is a healthcare provider. based in Boston, Massachusetts. specializing in Pediatric Allergy/Immunology Physician. They hold the professional credentials M.D.. They hold a License No. 42650 (MA). The NPI Number for DR. JOHN L SULLIVAN (M.D.) is 1821072547

Main info

Male
Name
DR. JOHN L SULLIVAN (M.D.)
NPI
1821072547
Phone
(800) 225-8885
Address
PO BOX 415348
Enumeration Date
6 December 2005
Last Update Date
9 November 2020

Contacts

Secure Messaging
jsullivan85779@UmassMemorial.direct-ci.com
FHIR Endpoint
https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

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Provider Addresses for DR. JOHN L SULLIVAN (M.D.)

  • PO Box 846028, Albany Street, Church Green, Financial District, Boston, Suffolk County, Massachusetts, 02284-6028, United States

    BOSTON, MA 022410001

    Phone: (800) 225-8885

    Fax: (508) 334-1977

    Type: Mailing

  • UMASS Memorial Medical Center University Campus Hospital, 55, Lake Avenue North, Worcester, Worcester County, Massachusetts, 01653, United States

    DEPARTMENT OF PEDIATRIC ALLERGY & IMMUNOLOGY

    WORCESTER, MA 016550002

    Phone: (508) 856-1572

    Fax: (508) 856-5004

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

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Medicare Enrollment & Revalidation

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Medicare Utilization (FFS)

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No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 02241)

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Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. JOHN L SULLIVAN (M.D.)?
DR. JOHN L SULLIVAN (M.D.) — NPI 1821072547 — is the standard way to identify this listing.
Is DR. JOHN L SULLIVAN (M.D.) still practicing?
DR. JOHN L SULLIVAN (M.D.) is currently listed as active in the public NPI registry.
What is DR. JOHN L SULLIVAN (M.D.)'s specialty?
The listing groups DR. JOHN L SULLIVAN (M.D.) with Pediatric Allergy/Immunology Physician. Clinical services aligned with this taxonomy classification.
What address line appears for DR. JOHN L SULLIVAN (M.D.)?
DR. JOHN L SULLIVAN (M.D.)'s geographic hint is Boston, Massachusetts in our summary view.
Why does DR. JOHN L SULLIVAN (M.D.) have multiple addresses?
2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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