DR. GARY A GREGO (M.D.) – Family Medicine Physician, NPI 1396726303

DR. GARY A GREGO (M.D.) is a healthcare provider. based in Defiance, Ohio. specializing in Family Medicine Physician. They hold the professional credentials M.D.. They hold a License No. 35060999G (OH). The NPI Number for DR. GARY A GREGO (M.D.) is 1396726303

Main info

Male
37 Years Of Experience
Accepts Medicare Assignment
Name
DR. GARY A GREGO (M.D.)
NPI
1396726303
Phone
(419) 784-1414
Address
1400 E 2ND ST
Enumeration Date
7 November 2005
Last Update Date
3 September 2010

Doctor Profile

Medical School Name
WAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
4197841414
Graduation Year
1989 (37 years ago)
PAC ID
2365334943
Group Practice PAC ID
0244407823
Professional Enrollment ID
I20091210000473
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. GARY A GREGO (M.D.)

  • East 2nd Street, Defiance, Defiance County, Ohio, 43512, United States

    DEFIANCE, OH 435122440

    Phone: (419) 784-1414

    Type: Mailing

  • North Street, Napoleon Township, Jackson County, Michigan, 49201, United States

    NAPOLEON, OH 43545

    Phone: (419) 599-5600

    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 $22.

Total Amount is formed as General ($22) + Research ($0) + Ownership ($0) = $22.

Last reported payment date: 2023-07-17 • Largest payer in this snapshot: Amgen Inc. ($22).

Total Amount

$22

General + Research + Ownership

Payments

1

Total payment records

General Amount

$22

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-07-17

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Amgen Inc.$22
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.

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 43512)

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Provider's Procedures

DR. GARY A GREGO (M.D.) performs procedures in Family Medicine Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
FAMILY MEDICINEOH83036Hemoglobin A1C level17087

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: 0244407823View full group profile

Reviews

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Frequently asked questions

Does DR. GARY A GREGO (M.D.) have a public NPI I can cite?
Public records show DR. GARY A GREGO (M.D.) under NPI 1396726303.
Should I treat DR. GARY A GREGO (M.D.) as an active provider?
Patients and plans typically see DR. GARY A GREGO (M.D.) as active in the national extract.
Which specialty label fits DR. GARY A GREGO (M.D.)?
NPPES ties DR. GARY A GREGO (M.D.) to Family Medicine Physician in the taxonomy section. Clinical services aligned with this taxonomy classification.
Is DR. GARY A GREGO (M.D.) tied to Defiance, Ohio?
If you are local to Defiance, Ohio, DR. GARY A GREGO (M.D.) may be relevant to your search.
Who maintains DR. GARY A GREGO (M.D.)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

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