What is Gregory Garrison's NPI number?

Gregory Garrison's National Provider Identifier (NPI) is 1003920950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gregory Garrison's specialty?

Gregory Garrison is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is Gregory Garrison located?

Gregory Garrison's practice location on file with NPPES is 4941 Benchmark Centre Dr, Swansea, IL 62226-2038.

What is Gregory Garrison's phone number?

The practice phone number listed in the NPPES registry for Gregory Garrison is (618) 624-9970.

Is Gregory Garrison's NPI active?

Yes — Gregory Garrison's NPI (1003920950) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Gregory Garrison, M.D.

NPI 1003920950 · Pediatrics Physician · Swansea, IL

Gregory Garrison, M.D. is a Pediatrics Physician provider in Swansea, IL (NPI 1003920950).

Provider details

NPI number: 1003920950
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes

Practice location

4941 Benchmark Centre Dr

Suite 100

Swansea, IL 62226-2038

Phone: (618) 624-9970

Fax: (618) 624-9973

Street-level locationGet directions

More IL providers

Mailing address

4941 Benchmark Centre Dr

Swansea, IL 62226-2038

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000X
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(86/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure33% of score
20 yrs in NPPES registry
Profile completeness33% of score
83% of core fields populated
Practice footprint20% of score
1 documented practice location
Open Payments transparency13% of score
Has Open Payments disclosures (2024)

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$134 across 7 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2006-08-18
Last updated: 2007-07-08

Frequently asked questions

What is Gregory Garrison's NPI number?: Gregory Garrison's National Provider Identifier (NPI) is 1003920950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Gregory Garrison's specialty?: Gregory Garrison is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is Gregory Garrison located?: Gregory Garrison's practice location on file with NPPES is 4941 Benchmark Centre Dr, Swansea, IL 62226-2038.
What is Gregory Garrison's phone number?: The practice phone number listed in the NPPES registry for Gregory Garrison is (618) 624-9970.
Is Gregory Garrison's NPI active?: Yes — Gregory Garrison's NPI (1003920950) is active in the NPPES registry as of the last update on 2007-07-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Transparency — industry payments

Frequently asked questions