What is Jon Tierney's NPI number?

Jon Tierney's National Provider Identifier (NPI) is 1225979941, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jon Tierney's specialty?

Jon Tierney is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).

Where is Jon Tierney located?

Jon Tierney's practice location on file with NPPES is 228 Main St, Bar Harbor, ME 04609-1739.

What is Jon Tierney's phone number?

The practice phone number listed in the NPPES registry for Jon Tierney is (207) 461-4338.

Is Jon Tierney's NPI active?

Yes — Jon Tierney's NPI (1225979941) is active in the NPPES registry as of the last update on 2026-04-06.

IndividualActive

Jon Tierney, RN

NPI 1225979941 · Registered Nurse · Bar Harbor, ME

Jon Tierney, RN is a Registered Nurse provider in Bar Harbor, ME (NPI 1225979941).

Provider details

NPI number: 1225979941
Entity type: Individual
Primary specialty: Registered NurseNursing Service Providers
Credential: RN
Sex: Male
Sole proprietor: No
License: RN79125 (ME)

Specialties & taxonomies

Registered NursePrimary163W00000XLicense RN79125 (ME)
Nursing Service Providers

Profile Score

Established profile(53/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

228 Main St

Bar Harbor, ME 04609-1739

Phone: (207) 461-4338

Street-level locationGet directions

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Mailing address