What is Gregory Nelligan's NPI number?

Gregory Nelligan's National Provider Identifier (NPI) is 1205924842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gregory Nelligan's specialty?

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

Where is Gregory Nelligan located?

Gregory Nelligan's practice location on file with NPPES is 2500 Overlook Ter, Madison, WI 53705-2254.

What is Gregory Nelligan's phone number?

The practice phone number listed in the NPPES registry for Gregory Nelligan is (608) 256-1901.

Is Gregory Nelligan's NPI active?

Yes — Gregory Nelligan's NPI (1205924842) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Gregory Nelligan, M.D.

NPI 1205924842 · Gastroenterology Physician · Madison, WI

Gregory Nelligan, M.D. is a Gastroenterology Physician provider in Madison, WI (NPI 1205924842).

Provider details

NPI number: 1205924842
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100X
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(84/100 index)

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

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

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.

Practice location

2500 Overlook Ter

Madison, WI 53705-2254

Phone: (608) 256-1901

Fax: (608) 280-7020

Street-level locationGet directions

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Mailing address