What is Sydney Mosier's NPI number?

Sydney Mosier's National Provider Identifier (NPI) is 1649153420, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sydney Mosier's specialty?

Sydney Mosier is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is Sydney Mosier located?

Sydney Mosier's practice location on file with NPPES is 550 E Church St Ste F2, Elmira, NY 14901-2850.

What is Sydney Mosier's phone number?

The practice phone number listed in the NPPES registry for Sydney Mosier is (607) 734-0980.

Is Sydney Mosier's NPI active?

Yes — Sydney Mosier's NPI (1649153420) is active in the NPPES registry as of the last update on 2025-07-29.

IndividualActive

Sydney Mosier, LMSW

NPI 1649153420 · Social Worker · Elmira, NY

Sydney Mosier, LMSW is a Social Worker provider in Elmira, NY (NPI 1649153420).

Provider details

NPI number: 1649153420
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: LMSW
Sex: Female
Sole proprietor: No
License: 127638-01 (NY)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 127638-01 (NY)
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 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

550 E Church St Ste F2

Elmira, NY 14901-2850

Phone: (607) 734-0980

Fax: (607) 734-0981

Street-level locationGet directions

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Mailing address