What is John Siak's NPI number?

John Siak's National Provider Identifier (NPI) is 1528927415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Siak's specialty?

John Siak is listed in the NPPES registry with a primary specialty of Independent Duty Corpsman (Other Service Providers).

Where is John Siak located?

John Siak's practice location on file with NPPES is 100 Brewster Blvd, Camp Lejeune, NC 28547-2575.

What is John Siak's phone number?

The practice phone number listed in the NPPES registry for John Siak is (910) 450-4357.

Is John Siak's NPI active?

Yes — John Siak's NPI (1528927415) is active in the NPPES registry as of the last update on 2026-01-17.

IndividualActive

John Siak

NPI 1528927415 · Independent Duty Corpsman · Camp Lejeune, NC

John Siak is a Independent Duty Corpsman provider in Camp Lejeune, NC (NPI 1528927415).

Provider details

NPI number: 1528927415
Entity type: Individual
Primary specialty: Independent Duty CorpsmanOther Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Independent Duty CorpsmanPrimary1710I1002X
Other Service Providers

Profile Score

Basic profile(47/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

100 Brewster Blvd

Camp Lejeune, NC 28547-2575

Phone: (910) 450-4357

Approximate (ZIP-level) locationGet directions

More NC providers

Mailing address