What is John Siegal's NPI number?

John Siegal's National Provider Identifier (NPI) is 1669148516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Siegal's specialty?

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

Where is John Siegal located?

John Siegal's practice location on file with NPPES is 44335 Premier Plz Ste 230, Ashburn, VA 20147-5052.

What is John Siegal's phone number?

The practice phone number listed in the NPPES registry for John Siegal is (571) 498-0109.

Is John Siegal's NPI active?

Yes — John Siegal's NPI (1669148516) is active in the NPPES registry as of the last update on 2021-08-20.

IndividualActive

John Siegal, MSW

NPI 1669148516 · Clinical Social Worker · Ashburn, VA

John Siegal, MSW is a Clinical Social Worker provider in Ashburn, VA (NPI 1669148516).

Provider details

NPI number: 1669148516
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: MSW
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700X
Behavioral Health & Social Service Providers

Profile Score

Established profile(55/100 index)

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

Registry tenure38% of score
4 yrs in NPPES registry
Profile completeness38% of score
83% 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

44335 Premier Plz Ste 230

Ashburn, VA 20147-5052

Phone: (571) 498-0109

Street-level locationGet directions

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Mailing address