Gretchen Karstens, MD
Pediatrics Physician · Duluth, MN
Gretchen Karstens, MD is a pediatrics physician with a practice address in Duluth, Minnesota, and NPI 1669405189, issued on Jul 8, 2006. Check the license on the Minnesota Board of Medical Practice; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gretchen Karstens
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- Practice location
- 1012 E 2ND St, Duluth, MN 55805
- Phone
- (218) 249-7870
- Enumerated
- Jul 8, 2006
- Entity
- Type 1 · individual
Also registered at 1012 E 2ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Daniel Billman, M.D.Neonatal-Perinatal Medicine Physician1902801442
- Jordan Blessing, MDPediatrics Physician1073907291
Verify Gretchen Karstens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical PracticeCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
43 pediatrics physician records list a Duluth practice address
They are 43 of the 4,084 NPPES records with a Duluth practice address, and 1,460 pediatrics physician records in Minnesota. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 43 in Duluth → All 1,460 in Minnesota → Every provider in Duluth →
Other pediatrics physician records in Minnesota
- Kelly Aarsvold, MDDuluth, MN1710323100
- Tasneem Abdel-Karim, MBBSRochester, MN1669057444
- Abdul Kadir Abdi, M.D.Minneapolis, MN1619222197
- Kaye Abel, MDChamplin, MN1508849530
- George Achett, M.D.Edina, MN1710965686
- Asma Adam, MDMinneapolis, MN1033784152
- Christopher Adams, M.D.Minnetonka, MN1598185027
- Katelyn Adams, MDDuluth, MN1689237448
- Sharon Adams, MDInver Grove Heights, MN1356371926
- Diane Adamski, MDBloomington, MN1578593158
Common questions
What is Gretchen Karstens, MD's NPI number?
Gretchen Karstens, MD's National Provider Identifier (NPI) is 1669405189, issued on Jul 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gretchen Karstens, MD located?
The NPPES record lists a practice address at 1012 E 2ND St, Duluth, MN, 55805. Phone: (218) 249-7870. Providers update this record themselves, so call before visiting.
How can I verify Gretchen Karstens, MD's license?
Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.