Cassandra Williams, PMHNP
NPI 1851796957 · Psychiatric/Mental Health Nurse Practitioner · Mount Vernon, NY
Cassandra Williams, PMHNP is a Psychiatric/Mental Health Nurse Practitioner provider in Mount Vernon, NY (NPI 1851796957).
Provider details
- NPI number
- 1851796957
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 691006 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$118 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 813 Astoria BlvdAstoria, NY 11102-4028Phone: (929) 238-3092
Registry dates
- Enumerated
- 2014-10-31
- Last updated
- 2022-11-21
- Certified
- 2022-11-02
Frequently asked questions
- What is Cassandra Williams's NPI number?
- Cassandra Williams's National Provider Identifier (NPI) is 1851796957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Williams's specialty?
- Cassandra Williams is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cassandra Williams located?
- Cassandra Williams's practice location on file with NPPES is 625 Gramatan Ave Apt 5l, Mount Vernon, NY 10552-1817.
- What is Cassandra Williams's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Williams is (347) 264-7101.
- Is Cassandra Williams's NPI active?
- Yes — Cassandra Williams's NPI (1851796957) is active in the NPPES registry as of the last update on 2022-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.