Mark Harrigan, RN
NPI 1871934398 · Psychiatric/Mental Health Registered Nurse · Buffalo, NY
Mark Harrigan, RN is a Psychiatric/Mental Health Registered Nurse provider in Buffalo, NY (NPI 1871934398).
Provider details
- NPI number
- 1871934398
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 463327-1 (NY)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
Mailing address
Registry dates
- Enumerated
- 2013-07-12
- Last updated
- 2013-07-12
Frequently asked questions
- What is Mark Harrigan's NPI number?
- Mark Harrigan's National Provider Identifier (NPI) is 1871934398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Harrigan's specialty?
- Mark Harrigan is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Mark Harrigan located?
- Mark Harrigan's practice location on file with NPPES is 1384 Broadway, Buffalo, NY 14212.
- What is Mark Harrigan's phone number?
- The practice phone number listed in the NPPES registry for Mark Harrigan is (716) 894-9672.
- Is Mark Harrigan's NPI active?
- Yes — Mark Harrigan's NPI (1871934398) is active in the NPPES registry as of the last update on 2013-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.