DR. JAY G. FONG (M.D.) – Pediatric Gastroenterology Physician, NPI 1801977640

DR. JAY G. FONG (M.D.) is a healthcare provider. based in Boston, Massachusetts. specializing in GASTROENTEROLOGY, PEDIATRIC MEDICINE. They hold the professional credentials M.D.. They hold a License No. 230289 (MA). The NPI Number for DR. JAY G. FONG (M.D.) is 1801977640

Main info

Male
27 Years Of Experience
Accepts Medicare Assignment
Name
DR. JAY G. FONG (M.D.)
NPI
1801977640
Phone
(800) 225-8885
Address
PO BOX 415348
Enumeration Date
18 October 2006
Last Update Date
9 November 2020

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7744425695
Graduation Year
1999 (27 years ago)
PAC ID
2466537808
Group Practice PAC ID
4284539891
Professional Enrollment ID
I20080311000082
Address ID
MA015322130NO333XXCUTO300

Contacts

Secure Messaging
jfong22679@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
Experience62
Completeness85
Years active:19State licenses:1Other namesUpdated within 12 months

829 GASTROENTEROLOGY in MA

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Provider Addresses for DR. JAY G. FONG (M.D.)

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

    BOSTON, MA 022415348

    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

    WORCESTER, MA 01655

    Phone: (774) 441-8082

    Fax: (774) 441-8056

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $113.

Total Amount is formed as General ($113) + Research ($0) + Ownership ($0) = $113.

Last reported payment date: 2023-05-10 • Largest payer in this snapshot: FUJIFILM Healthcare Americas Corporation ($113).

Total Amount

$113

General + Research + Ownership

Payments

1

Total payment records

General Amount

$113

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-05-10

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2008-03-11

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20080311000082IGastroenterologyMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

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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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4284539891View full group profile
NameSpecialtyState
Certified Registered Nurse Anesthetist (Crna)MA
-MA
-MA
Family PracticeMA
Physician AssistantMA
Pulmonary Disease, Critical Care (Intensivists), Allergy/ImmunologyMA
-MA
-MA
Internal MedicineMA
Nurse PractitionerMA

Reviews

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Frequently asked questions

Can I use this page to confirm DR. JAY G. FONG (M.D.)'s NPI?
Yes. DR. JAY G. FONG (M.D.) is listed with NPI 1801977640 in the public NPI dataset.
Does the file indicate DR. JAY G. FONG (M.D.) is practicing under active NPI?
Directory data currently reports DR. JAY G. FONG (M.D.) as active.
What taxonomy line describes DR. JAY G. FONG (M.D.)?
For research purposes, treat DR. JAY G. FONG (M.D.) as Pediatric Gastroenterology Physician in this dataset. Clinical services aligned with this taxonomy classification.
Does DR. JAY G. FONG (M.D.) list a practice location?
Patients near Boston, Massachusetts may find DR. JAY G. FONG (M.D.) in results; validate coverage separately.
Why does DR. JAY G. FONG (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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