What is Mark Spencer's NPI number?

Mark Spencer's National Provider Identifier (NPI) is 1134285539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Spencer's specialty?

Mark Spencer is listed in the NPPES registry with a primary specialty of Neurology Chiropractor (Chiropractic Providers).

Where is Mark Spencer located?

Mark Spencer's practice location on file with NPPES is 15850 New Ave, Lemont, IL 60439-3680.

What is Mark Spencer's phone number?

The practice phone number listed in the NPPES registry for Mark Spencer is (815) 302-2784.

Is Mark Spencer's NPI active?

Yes — Mark Spencer's NPI (1134285539) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Mark Spencer, DN

NPI 1134285539 · Neurology Chiropractor · Lemont, IL

Mark Spencer, DN is a Neurology Chiropractor provider in Lemont, IL (NPI 1134285539).

Provider details

NPI number: 1134285539
Entity type: Individual
Primary specialty: Neurology ChiropractorChiropractic Providers
Credential: DN
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Neurology ChiropractorPrimary111NN0400X
Chiropractic Providers

Profile Score

Detailed profile(84/100 index)

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

Registry tenure38% of score
19 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

15850 New Ave

Lemont, IL 60439-3680

Phone: (815) 302-2784

Fax: (630) 243-8807

Street-level locationGet directions

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Mailing address