What is Diane Osborne's NPI number?

Diane Osborne's National Provider Identifier (NPI) is 1013916402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Diane Osborne's specialty?

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

Where is Diane Osborne located?

Diane Osborne's practice location on file with NPPES is 8500 Executive Park Ave, Fairfax, VA 22031-2225.

What is Diane Osborne's phone number?

The practice phone number listed in the NPPES registry for Diane Osborne is (703) 698-5220.

Does Diane Osborne accept Medicare?

Diane Osborne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Diane Osborne's NPI active?

Yes — Diane Osborne's NPI (1013916402) is active in the NPPES registry as of the last update on 2011-11-10.

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Diane Osborne, LCSW

NPI 1013916402 · Social Worker · Fairfax, VA

Diane Osborne, LCSW is a Social Worker provider in Fairfax, VA (NPI 1013916402).

Provider details

NPI number: 1013916402
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW
Sex: Female
Sole proprietor: No
License: 0904003453 (VA)

Practice location

8500 Executive Park Ave

Suite 200

Fairfax, VA 22031-2225

Phone: (703) 698-5220

Fax: (703) 573-2351

Street-level locationGet directions

More VA providers

Mailing address

8500 Executive Park Ave

Fairfax, VA 22031-2225

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 0904003453 (VA)
Behavioral Health & Social Service Providers

Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(78/100 index)

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

Registry tenure28% of score
21 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
241 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. 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.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Psychotherapy, 1 Hour90837	223	$122
Psychiatric Diagnostic Evaluation90791	18	$133

Typical Medicare-allowed amounts for these services range $122–$133 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Enumerated: 2005-07-18
Last updated: 2011-11-10

Frequently asked questions

What is Diane Osborne's NPI number?: Diane Osborne's National Provider Identifier (NPI) is 1013916402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Diane Osborne's specialty?: Diane Osborne is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
Where is Diane Osborne located?: Diane Osborne's practice location on file with NPPES is 8500 Executive Park Ave, Fairfax, VA 22031-2225.
What is Diane Osborne's phone number?: The practice phone number listed in the NPPES registry for Diane Osborne is (703) 698-5220.
Does Diane Osborne accept Medicare?: Diane Osborne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Diane Osborne's NPI active?: Yes — Diane Osborne's NPI (1013916402) is active in the NPPES registry as of the last update on 2011-11-10.

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

What this provider does (Medicare)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)