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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MARK SARDELIS
NPI 1548195928
Peer Specialist in Seward, AK

Active since June 16, 2026
PO BOX 1045, SEWARD, AK 99664(907) 224-5257(907) 224-7081 Get Directions Write a Review

NPPES record added: June 16, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mark Sardelis NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK SARDELIS (NPI 1548195928) is an individual peer specialist in Seward, Alaska and active in the NPI registry since June 2026.

NPPES Registry Identity

NPI1548195928
Entity TypeIndividualMale
Primary Taxonomy175T00000X
Provider Legal NameMARK SARDELIS
Location AddressPO BOX 1045Seward, AK 99664-1045
Mailing AddressPo Box 1045Seward, AK 99664-1045 · (907) 224-5257 · Fax (907) 224-7081
Phone(907) 224-5257
Fax(907) 224-7081
Sole ProprietorNo
Enumeration DateJune 16, 2026
NPPES CertifiedJune 16, 2026
✔ NPI 1548195928 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPeer SpecialistOther Service Providers
Taxonomy Code175T00000X
Definition
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.
PO BOX 1045, Seward, AK 99664
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Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JADYN VILLANI
Counselor (Addiction (Substance Use Disorder))
PO BOX 1045
SEWARD, AK 99664
Kenai Peninsula Borough (360) 528-0956
JESSE VARGAS
Peer Specialist
PO BOX 1045
SEWARD, AK 99664
Kenai Peninsula Borough (907) 422-5257
KATRINA HALL
Peer Specialist
PO BOX 1045
SEWARD, AK 99664
Kenai Peninsula Borough (360) 528-0956
PAULA KIM
Behavior Technician
PO BOX 1045
SEWARD, AK 99664
Kenai Peninsula Borough (907) 224-5257
ERIN SPRADLIN
Peer Specialist
PO BOX 1045
SEWARD, AK 99664
Kenai Peninsula Borough (907) 224-5257
ELIZABETH GRACE WEISIGER
Counselor (Professional)
PO BOX 1045
SEWARD, AK 99664
Kenai Peninsula Borough (360) 528-0956
ALEJANDRO PEREZ
Behavior Technician
PO BOX 1045
SEWARD, AK 99664
Kenai Peninsula Borough (907) 422-7649
TYKAN DALY
Counselor (Addiction (Substance Use Disorder))
PO BOX 1045
SEWARD, AK 99664
Kenai Peninsula Borough (907) 422-7649

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Sardelis's NPI number?

The NPI number for Mark Sardelis is 1548195928. It was assigned to this individual provider in the NPPES registry on June 16, 2026.

Where is Mark Sardelis located?

Mark Sardelis practices at PO Box 1045, Seward, AK 99664. The listed phone number is (907) 224-5257.

What is Mark Sardelis's specialty?

The primary specialty registered for this NPI is Peer Specialist with taxonomy code 175T00000X.

When was this NPI record last updated?

The NPPES record for Mark Sardelis was last updated on June 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.