Theodore Nadelen, MS, RN, FNP
NPI 1144391962 · Family Nurse Practitioner · Lyndonville, NY
Theodore Nadelen, MS, RN, FNP is a Family Nurse Practitioner provider in Lyndonville, NY (NPI 1144391962).
Provider details
- NPI number
- 1144391962
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MS, RN, FNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 334787-1 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
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
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
- 2006-11-13
- Last updated
- 2013-02-26
Frequently asked questions
- What is Theodore Nadelen's NPI number?
- Theodore Nadelen's National Provider Identifier (NPI) is 1144391962, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theodore Nadelen's specialty?
- Theodore Nadelen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Theodore Nadelen located?
- Theodore Nadelen's practice location on file with NPPES is 77 S Main St, Lyndonville, NY 14098-9771.
- What is Theodore Nadelen's phone number?
- The practice phone number listed in the NPPES registry for Theodore Nadelen is (585) 765-2060.
- Is Theodore Nadelen's NPI active?
- Yes — Theodore Nadelen's NPI (1144391962) is active in the NPPES registry as of the last update on 2013-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.