ANDREW J. GILLIS-SMITH (M.D.) – Hematology & Oncology Physician, NPI 1063859387

ANDREW J. GILLIS-SMITH (M.D.) is a healthcare provider. based in Marlborough, Massachusetts. specializing in HEMATOLOGY/ONCOLOGY. They hold the professional credentials M.D.. They hold a License No. 283509 (MA). The NPI Number for ANDREW J. GILLIS-SMITH (M.D.) is 1063859387

Main info

Male
13 Years Of Experience
Accepts Medicare Assignment
Name
ANDREW J. GILLIS-SMITH (M.D.)
NPI
1063859387
Phone
(508) 486-6700
Address
157 Union St
Enumeration Date
28 May 2013
Last Update Date
7 May 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
5083341000
Graduation Year
2013 (13 years ago)
PAC ID
0941427355
Group Practice PAC ID
4284539891
Professional Enrollment ID
I20200923000890
Address ID
MA016550002WO55XXXNXXX400
Telehealth
Yes

Contacts

Secure Messaging
agillissmith28711@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
Experience50
Completeness85
Years active:13State licenses:1Other namesUpdated within 12 months

610 HEMATOLOGY/ONCOLOGY in MA

Provider Addresses for ANDREW J. GILLIS-SMITH (M.D.)

  • 157 Union St

    Marlborough, MA 017521228

    Phone: (508) 486-6700

    Type: Location

  • PO BOX 415348

    BOSTON, MA 022415348

    Phone: (800) 225-8885

    Fax: (508) 334-1977

    Type: Mailing

  • 55 LAKE AVE N

    WORCESTER, MA 016550002

    Phone: (774) 442-3903

    Fax: (774) 442-6715

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 4 Open Payments records for all available years, with a total value of $1,359.

Total Amount is formed as General ($91) + Research ($1,268) + Ownership ($0) = $1,359.

Last reported payment date: 2024-12-31 • Largest payer in this snapshot: F. Hoffmann-La Roche AG ($1,233).

Total Amount

$1,359

General + Research + Ownership

Payments

4

Total payment records

General Amount

$91

General payments

Research Amount

$1,268

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-31

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: 2020-09-23

PECOS data refreshed: 2026-06-15

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
I20200923000890IHematology/OncologyMATBD

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99213Established patient office or other outpatient visit, 20-29 minutes13273$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes10531$0
99214Established patient office or other outpatient visit, 30-39 minutes7246$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes4722$0
99215Established patient office or other outpatient visit, 40-54 minutes4430$0
View full utilization report →

Insurance plans in this area (ZIP 01752)

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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
-MA
-MA
Family PracticeMA
Physician AssistantMA
A N E S T H E S I O L O G YNY
Pulmonary Disease, Critical Care (Intensivists), Allergy/ImmunologyMA
-MA
-MA
Internal MedicineMA
Nurse PractitionerMA

Reviews

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Frequently asked questions

Is ANDREW J. GILLIS-SMITH (M.D.) listed with a National Provider Identifier?
Yes — ANDREW J. GILLIS-SMITH (M.D.) has NPI 1063859387 on file in the registry.
Is ANDREW J. GILLIS-SMITH (M.D.) shown as active in public data?
Registry records indicate ANDREW J. GILLIS-SMITH (M.D.) maintains an active NPI.
What area of care is associated with ANDREW J. GILLIS-SMITH (M.D.)?
ANDREW J. GILLIS-SMITH (M.D.)'s record emphasizes Hematology & Oncology Physician. Clinical services aligned with this taxonomy classification.
Is ANDREW J. GILLIS-SMITH (M.D.) associated with Marlborough?
Public fields place ANDREW J. GILLIS-SMITH (M.D.) around Marlborough, Massachusetts. Always confirm the exact site before visiting.
Can I trust this NPI listing for ANDREW J. GILLIS-SMITH (M.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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