DIORELLA GULOY (DO) – Hospitalist Physician, NPI 1477782597

DIORELLA GULOY (DO) is a healthcare provider. based in Berwyn, Illinois. specializing in INTERNAL MEDICINE. They hold the professional credentials DO. They hold a License No. 036129072 (IL). The NPI Number for DIORELLA GULOY (DO) is 1477782597

Main info

Female
17 Years Of Experience
Accepts Medicare Assignment
Name
DIORELLA GULOY (DO)
NPI
1477782597
Phone
(708) 783-9100
Address
3249 OAK PARK AVE
Enumeration Date
10 July 2009
Last Update Date
11 June 2024

Doctor Profile

Medical School Name
OTHER
Secondary Phone
7087832700
Graduation Year
2009 (17 years ago)
PAC ID
2961640305
Group Practice PAC ID
6305109547
Professional Enrollment ID
I20130524000400
Address ID
IL604023472BE3231XAVEX301
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience61
Completeness75
Years active:16State licenses:1Digital endpointsOther names

8,856 INTERNAL MEDICINE in IL

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Provider Addresses for DIORELLA GULOY (DO)

  • MacNeal Hospital, 3249, Oak Park Avenue, Berwyn, Cook County, Illinois, 60402, United States

    BERWYN, IL 604023429

    Phone: (708) 783-9100

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 9 Open Payments records for all available years, with a total value of $233.

Total Amount is formed as General ($233) + Research ($0) + Ownership ($0) = $233.

Last reported payment date: 2024-08-21 • Largest payer in this snapshot: Melinta Therapeutics, LLC ($115).

Total Amount

$233

General + Research + Ownership

Payments

9

Total payment records

General Amount

$233

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-08-21

Latest reported date

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: 2013-05-24

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
I20130524000400IInternal MedicineILTBD

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
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes289128$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes15987$0
99239Hospital discharge day management, more than 30 minutes9793$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes8280$0
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes1412$0
View full utilization report →

Insurance plans in this area (ZIP 60402)

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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: 6305109547View full group profile
NameSpecialtyState
Family PracticeIL
Endocrinology, Internal MedicineIL
E N D O C R I N O L O G YIL
P S Y C H I A T R YIL
Family PracticeIL
Internal MedicineIL
P S Y C H I A T R YTN
O B S T E T R I C S/ G Y N E C O L O G YIL
Internal MedicineIL
Family PracticeIL

Reviews

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Frequently asked questions

What is the 10-digit NPI for DIORELLA GULOY (DO)?
DIORELLA GULOY (DO) — NPI 1477782597 — is the standard way to identify this listing.
Is DIORELLA GULOY (DO) still practicing?
DIORELLA GULOY (DO) is currently listed as active in the public NPI registry.
What is DIORELLA GULOY (DO) best known for clinically?
Directory data describes DIORELLA GULOY (DO) with Hospitalist Physician. Clinical services aligned with this taxonomy classification.
Where should I expect DIORELLA GULOY (DO) on a map?
Expect Berwyn, Illinois as a primary anchor for DIORELLA GULOY (DO) unless the record lists multiple sites.
Why does DIORELLA GULOY (DO) 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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