What is Mark Sefcheck's NPI number?

Mark Sefcheck's National Provider Identifier (NPI) is 1558509497, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Sefcheck's specialty?

Mark Sefcheck is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).

Where is Mark Sefcheck located?

Mark Sefcheck's practice location on file with NPPES is 129 N Washington St, Naperville, IL 60540-4511.

What is Mark Sefcheck's phone number?

The practice phone number listed in the NPPES registry for Mark Sefcheck is (630) 961-1048.

Is Mark Sefcheck's NPI active?

Yes — Mark Sefcheck's NPI (1558509497) is active in the NPPES registry as of the last update on 2009-01-30.

IndividualActive

Mark Sefcheck, D.D.S.

NPI 1558509497 · Dentist · Naperville, IL

Mark Sefcheck, D.D.S. is a Dentist provider in Naperville, IL (NPI 1558509497).

Provider details

NPI number: 1558509497
Entity type: Individual
Primary specialty: DentistDental Providers
Credential: D.D.S.
Sex: Male
Sole proprietor: Yes
License: 019015718 (IL)

Specialties & taxonomies

DentistPrimary122300000XLicense 019015718 (IL)
Dental Providers

Profile Score

Detailed profile(86/100 index)

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

Registry tenure38% of score
17 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.

Practice location

129 N Washington St

Naperville, IL 60540-4511

Phone: (630) 961-1048

Street-level locationGet directions

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Mailing address