What is Diana Castellon's NPI number?

Diana Castellon's National Provider Identifier (NPI) is 1003585944, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Diana Castellon's specialty?

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

Where is Diana Castellon located?

Diana Castellon's practice location on file with NPPES is 17904 Georgia Ave Ste 200, Olney, MD 20832-2277.

What is Diana Castellon's phone number?

The practice phone number listed in the NPPES registry for Diana Castellon is (240) 304-3327.

Is Diana Castellon's NPI active?

Yes — Diana Castellon's NPI (1003585944) is active in the NPPES registry as of the last update on 2021-09-13.

IndividualActive

Diana Castellon, LMSW

NPI 1003585944 · Social Worker · Olney, MD

Diana Castellon, LMSW is a Social Worker provider in Olney, MD (NPI 1003585944).

Provider details

NPI number: 1003585944
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: LMSW
Sex: Female
Sole proprietor: No
License: 20544 (MD)

Practice location

17904 Georgia Ave Ste 200

Olney, MD 20832-2277

Phone: (240) 304-3327

Street-level locationGet directions

More MD providers

Mailing address

17904 Georgia Ave Ste 200

Olney, MD 20832-2277

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 20544 (MD)
Behavioral Health & Social Service Providers

Profile Score

Established profile(62/100 index)

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

Registry tenure38% of score
5 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.

Enumerated: 2021-09-13
Last updated: 2021-09-13
Certified: 2021-09-13

Frequently asked questions

What is Diana Castellon's NPI number?: Diana Castellon's National Provider Identifier (NPI) is 1003585944, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Diana Castellon's specialty?: Diana Castellon is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
Where is Diana Castellon located?: Diana Castellon's practice location on file with NPPES is 17904 Georgia Ave Ste 200, Olney, MD 20832-2277.
What is Diana Castellon's phone number?: The practice phone number listed in the NPPES registry for Diana Castellon is (240) 304-3327.
Is Diana Castellon's NPI active?: Yes — Diana Castellon's NPI (1003585944) is active in the NPPES registry as of the last update on 2021-09-13.

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

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions