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DR. GRETCHEN NICOLE KARSTENS MD
NPI 1669405189
Pediatrics in Duluth, MN

Active since July 08, 2006PECOS Enrolled
1012 E 2ND ST, DULUTH, MN 55805(218) 249-7870(218) 249-7801 Get Directions Write a Review

NPPES record last updated: December 4, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 4, 2020, Jan 27, 2017 (2 updates tracked since 2017).

About Dr. Gretchen Nicole Karstens Md NPPES

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

DR. GRETCHEN NICOLE KARSTENS MD (NPI 1669405189) is an individual pediatrics provider in Duluth, Minnesota, licensed in Minnesota (49164) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1669405189
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. GRETCHEN NICOLE KARSTENSCredential: MD
Location Address1012 E 2ND STDuluth, MN 55805-2200
Mailing Address1012 E 2nd StDuluth, MN 55805-2200 · (218) 249-7870 · Fax (218) 249-7801
Phone(218) 249-7870
Fax(218) 249-7801
Sole ProprietorNo
Enumeration DateJuly 8, 2006
Last NPPES UpdateDecember 4, 20202 updates tracked since enumeration
NPPES CertifiedDecember 4, 2020
✔ NPI 1669405189 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MN · 49164
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1012 E 2ND ST, Duluth, MN 55805
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HealthPartners, Medica, Security Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gretchen Nicole Karstens Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55805 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
$85.82 typical visit price
range $56.00 – $168.28
Typical copayment $21.45 (range $14.00 – $42.07)
Most-billed visit code 99203
Established Patient
$98.61 typical visit price
range $18.32 – $138.04
Typical copayment $24.65 (range $4.58 – $34.51)
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.

ST. LUKE'S HOSPITAL OF DULUTH
Emergency Medicine
1012 E 2ND ST
DULUTH, MN 55805
St. Louis County (218) 249-5555
JOSEPH BENERT MD
Orthopaedic Surgery (Sports Medicine)
1012 E 2ND ST
DULUTH, MN 55805
St. Louis County (218) 249-5555
KEVIN JOHN DALPIAZ PA-C
Physician Assistant
1012 E 2ND ST
DULUTH, MN 55805
St. Louis County (218) 249-6360
SARA LYNNE SIMONSON PA-C
Physician Assistant
1012 E 2ND ST
DULUTH, MN 55805
St. Louis County (218) 249-2450
CAMERON DAVID JOHNSON DO
Emergency Medicine
1012 E 2ND ST
DULUTH, MN 55805
St. Louis County (218) 249-5555
JORDAN BLESSING MD
Pediatrics
1012 E 2ND ST
DULUTH, MN 55805
St. Louis County (218) 249-7870
DANIEL DAVID FREEMAN MD
Emergency Medicine
1012 E 2ND ST
DULUTH, MN 55805
St. Louis County (218) 249-5616
LAURA GLAUS PA-C
Physician Assistant
1012 E 2ND ST
DULUTH, MN 55805
St. Louis County (218) 249-6360

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 Gretchen Karstens's NPI number?

The NPI number for Gretchen Karstens is 1669405189. It was assigned to this individual provider in the NPPES registry on July 8, 2006.

Where is Gretchen Karstens located?

Gretchen Karstens practices at 1012 E 2nd St, Duluth, MN 55805. The listed phone number is (218) 249-7870.

What is Gretchen Karstens's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Gretchen Karstens enrolled in Medicare?

Yes. Gretchen Karstens is registered in the Medicare PECOS enrollment system.

What insurance does Gretchen Karstens accept?

Health plans from HealthPartners, Medica and Security Health Plan list Gretchen Karstens 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 Gretchen Karstens was last updated on December 4, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.