ISABEL A ZACHARIAS (MD) – Gastroenterology Physician, NPI 1265603948

ISABEL A ZACHARIAS (MD) is a healthcare provider. based in Worcester, Massachusetts. specializing in Gastroenterology Physician. They hold the professional credentials MD. They hold a License No. 238014 (MA). The NPI Number for ISABEL A ZACHARIAS (MD) is 1265603948

Main info

Female
24 Years Of Experience
Accepts Medicare Assignment
Name
ISABEL A ZACHARIAS (MD)
NPI
1265603948
Phone
(508) 856-2846
Address
55 LAKE AVE N
Enumeration Date
20 March 2008
Last Update Date
30 October 2020

Doctor Profile

Medical School Name
TUFTS UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
-
Graduation Year
2002 (24 years ago)
PAC ID
4486707239
Group Practice PAC ID
4284539891
Professional Enrollment ID
I20090728000066

Contacts

Secure Messaging
izacharias24043@UmassMemorial.direct-ci.com
FHIR Endpoint
https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience65
Completeness85
Years active:18State licenses:1Other namesUpdated within 12 months

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Provider Addresses for ISABEL A ZACHARIAS (MD)

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

    WORCESTER, MA 016550002

    Phone: (508) 856-2846

    Fax: (508) 856-3981

    Type: Location

  • 21 Eastern Ave

    Worcester, MA 016053094

    Phone: (508) 334-3068

    Fax: (508) 334-8437

    Type: Location

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

    BOSTON, MA 022415348

    Phone:

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

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

No Medicare enrollment or revalidation data available for this provider in our database.

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 01655)

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Provider's Procedures

ISABEL A ZACHARIAS (MD) performs procedures in Gastroenterology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
GASTROENTEROLOGYMA43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope1515

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

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Frequently asked questions

Is ISABEL A ZACHARIAS (MD) listed with a National Provider Identifier?
Yes — ISABEL A ZACHARIAS (MD) has NPI 1265603948 on file in the registry.
Would ISABEL A ZACHARIAS (MD) appear as active to a payer?
You can treat ISABEL A ZACHARIAS (MD) as active for directory purposes; confirm clinical privileges separately.
What area of care is associated with ISABEL A ZACHARIAS (MD)?
ISABEL A ZACHARIAS (MD)'s record emphasizes Gastroenterology Physician. Clinical services aligned with this taxonomy classification.
Is ISABEL A ZACHARIAS (MD) located near Worcester?
ISABEL A ZACHARIAS (MD) currently maps to Worcester, Massachusetts in this extract.
When was this NPI issued?
Enumeration for ISABEL A ZACHARIAS (MD) is noted as March 20, 2008 where the registry provides it.

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