What is Mary Nickel-Nguy's NPI number?

Mary Nickel-Nguy's National Provider Identifier (NPI) is 1417401910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Nickel-Nguy's specialty?

Mary Nickel-Nguy is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Mary Nickel-Nguy located?

Mary Nickel-Nguy's practice location on file with NPPES is 4815 Watt Ave, North Highlands, CA 95660-5108.

What is Mary Nickel-Nguy's phone number?

The practice phone number listed in the NPPES registry for Mary Nickel-Nguy is (916) 569-8484.

Is Mary Nickel-Nguy's NPI active?

Yes — Mary Nickel-Nguy's NPI (1417401910) is active in the NPPES registry as of the last update on 2025-12-02.

IndividualActive

Mary Nickel-Nguy, MSSW, LICSW

NPI 1417401910 · Clinical Social Worker · North Highlands, CA

Mary Nickel-Nguy, MSSW, LICSW is a Clinical Social Worker provider in North Highlands, CA (NPI 1417401910).

Provider details

NPI number: 1417401910
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: MSSW, LICSW
Sex: Female
Sole proprietor: No
License: 77775 (CA)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 77775 (CA)
Behavioral Health & Social Service Providers
Clinical Social Worker1041C0700XLicense LW 60330023 (WA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(80/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
9 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 documented practice locations

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

4815 Watt Ave

North Highlands, CA 95660-5108

Phone: (916) 569-8484

Street-level locationGet directions

More CA providers

Mailing address

1860 Howe Ave Ste 440

Sacramento, CA 95825-1098

Additional practice locations (2)

3065 Freeport Blvd Ste 8
Sacramento, CA 95818-4347
Phone: (206) 491-9710
1600 E Jefferson St
Suite 600
Seattle, WA 98122-5698
Phone: (206) 215-4545
Fax: (206) 215-4550

Enumerated: 2016-08-12
Last updated: 2025-12-02
Certified: 2025-12-02

Frequently asked questions

What is Mary Nickel-Nguy's NPI number?: Mary Nickel-Nguy's National Provider Identifier (NPI) is 1417401910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mary Nickel-Nguy's specialty?: Mary Nickel-Nguy is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
Where is Mary Nickel-Nguy located?: Mary Nickel-Nguy's practice location on file with NPPES is 4815 Watt Ave, North Highlands, CA 95660-5108.
What is Mary Nickel-Nguy's phone number?: The practice phone number listed in the NPPES registry for Mary Nickel-Nguy is (916) 569-8484.
Is Mary Nickel-Nguy's NPI active?: Yes — Mary Nickel-Nguy's NPI (1417401910) is active in the NPPES registry as of the last update on 2025-12-02.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.