Nancy Marcussen, LMHC, CASAC
NPI 1104477900 · Mental Health Counselor · Buffalo, NY
Nancy Marcussen, LMHC, CASAC is a Mental Health Counselor provider in Buffalo, NY (NPI 1104477900).
Provider details
- NPI number
- 1104477900
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC, CASAC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 009671 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
- 2019-09-23
- Last updated
- 2019-09-23
Frequently asked questions
- What is Nancy Marcussen's NPI number?
- Nancy Marcussen's National Provider Identifier (NPI) is 1104477900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Marcussen's specialty?
- Nancy Marcussen is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Nancy Marcussen located?
- Nancy Marcussen's practice location on file with NPPES is 135 Delaware Ave Ste 210, Buffalo, NY 14202-2410.
- What is Nancy Marcussen's phone number?
- The practice phone number listed in the NPPES registry for Nancy Marcussen is (716) 481-6923.
- Is Nancy Marcussen's NPI active?
- Yes — Nancy Marcussen's NPI (1104477900) is active in the NPPES registry as of the last update on 2019-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.