What is Dennis Ryan's NPI number?

Dennis Ryan's National Provider Identifier (NPI) is 1821092628, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Dennis Ryan's specialty?

Dennis Ryan is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).

Where is Dennis Ryan located?

Dennis Ryan's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.

What is Dennis Ryan's phone number?

The practice phone number listed in the NPPES registry for Dennis Ryan is (608) 782-7300.

Is Dennis Ryan's NPI active?

Yes — Dennis Ryan's NPI (1821092628) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Dennis Ryan, MD

NPI 1821092628 · Ophthalmology Physician · La Crosse, WI

Dennis Ryan, MD is a Ophthalmology Physician provider in La Crosse, WI (NPI 1821092628).

Provider details

NPI number: 1821092628
Entity type: Individual
Primary specialty: Ophthalmology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 19157 (WI)

Specialties & taxonomies

Ophthalmology PhysicianPrimary207W00000XLicense 19157 (WI)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

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

Registry tenure38% of score
21 yrs in NPPES registry
Profile completeness38% of score
100% 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

1836 South Ave

La Crosse, WI 54601-5429

Phone: (608) 782-7300

Street-level locationGet directions

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Mailing address