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DR. GREGORY JOHN SEMANCIK M.D.
NPI 1194882282
Pediatrics - Pediatric Gastroenterology in Anchorage, AK

Active since January 02, 2007PECOS Enrolled
3841 PIPER STREET, SUITE T4-020, ANCHORAGE, AK 99508(907) 929-7337(907) 929-7330 Get Directions Write a Review

NPPES record last updated: April 28, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Gregory John Semancik M.d. NPPES

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

DR. GREGORY JOHN SEMANCIK M.D. (NPI 1194882282) is an individual pediatric gastroenterology provider in Anchorage, Alaska, licensed in Alaska (7076) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1194882282
Entity TypeIndividualMale
Primary Taxonomy2080P0206X
Provider Legal NameDR. GREGORY JOHN SEMANCIKCredential: M.D.
Location Address3841 PIPER STREET, SUITE T4-020Anchorage, AK 99508
Mailing Address3841 Piper Street, Suite T4-020Anchorage, AK 99508 · (907) 929-7337 · Fax (907) 929-7330
Phone(907) 929-7337
Fax(907) 929-7330
Sole ProprietorYes
Medical School CMSOtherGraduated 1989
Enumeration DateJanuary 2, 2007
Last NPPES UpdateApril 28, 2026
NPPES CertifiedApril 28, 2026
✔ NPI 1194882282 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0206X
License✔ Licensed in AK · 7076
Definition
A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.
3841 PIPER STREET, Anchorage, AK 99508
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Other Identifiers 1

MedicaidMD9892AK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc., Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gregory John Semancik M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8022278530
PECOS Enrollment IDI20260204000026
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Gregory Semancik reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southcentral Foundation
0.5 mi
Community/Behavioral Health
4000 LAUREL ST
Anchorage, AK 99508
  • Reassigned Medicare billing, Texas enrollment
  • 459 clinicians in this Medicare group
NPI 1235782657 (907) 729-6300
Alaska Native Tribal Health Consortium
0.8 mi
General Acute Care Hospital
4315 DIPLOMACY DR
Anchorage, AK 99508
  • Reassigned Medicare billing, Texas enrollment
  • 1,373 clinicians in this Medicare group
NPI 1437189339 (907) 563-2662

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99508 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$168.20 typical visit price
range $71.33 – $222.64
Typical copayment $42.05 (range $17.83 – $55.66)
Most-billed visit code 99204
Established Patient
$128.73 typical visit price
range $21.84 – $181.48
Typical copayment $32.18 (range $5.46 – $45.37)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

THOMAS K KRAMER M.D.
Internal Medicine (Interventional Cardiology)
3841 PIPER STREET, SUITE T100
ANCHORAGE, AK 99508
Anchorage Municipality (907) 561-3211
DAVID A HEMRY MD
Allergy & Immunology
3841 PIPER STREET, SUITE T4-054
ANCHORAGE, AK 99508
Anchorage Municipality (907) 562-6228
RONDA RENEA NAKOA PNP
Nurse Practitioner (Pediatrics)
3841 PIPER STREET, SUITE T4-020
ANCHORAGE, AK 99508
Anchorage Municipality (907) 929-7337
LEO B BUSTAD M.D.
Internal Medicine (Cardiovascular Disease)
3841 PIPER STREET, SUITE T100
ANCHORAGE, AK 99508
Anchorage Municipality (907) 561-3211
MS. BRENDA J WITTMAN M.D.
Pediatrics (Pediatric Hematology-Oncology)
3841 PIPER STREET, SUITE T4-020
ANCHORAGE, AK 99508
Anchorage Municipality (907) 929-7337
MARIO BINDER M.D.
Internal Medicine (Cardiovascular Disease)
3841 PIPER STREET, SUITE T100
ANCHORAGE, AK 99508
Anchorage Municipality (907) 561-3211
JOHN C FINLEY M.D.
Internal Medicine (Cardiovascular Disease)
3841 PIPER STREET, SUITE T100
ANCHORAGE, AK 99508
Anchorage Municipality (907) 561-3211
DAVID W SONNEBORN M.D.
Internal Medicine (Cardiovascular Disease)
3841 PIPER STREET, SUITE T100
ANCHORAGE, AK 99508
Anchorage Municipality (907) 561-3211

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 Gregory Semancik's NPI number?

The NPI number for Gregory Semancik is 1194882282. It was assigned to this individual provider in the NPPES registry on January 2, 2007.

Where is Gregory Semancik located?

Gregory Semancik practices at 3841 Piper Street Suite T4-020, Anchorage, AK 99508. The listed phone number is (907) 929-7337.

What is Gregory Semancik's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

Is Gregory Semancik enrolled in Medicare?

Yes. Gregory Semancik is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Gregory Semancik's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Semancik reassigns Medicare benefits to 2 organizations: Southcentral Foundation (Anchorage, AK) and Alaska Native Tribal Health Consortium (Anchorage, AK). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Semancik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Semancik accept?

Health plans from Moda Health Plan, Inc. and Premera Blue Cross Blue Shield of Alaska list Gregory Semancik as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Semancik was last updated on April 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.