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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. CARL TJERANDSEN M.D.
NPI 1457327280
Psychiatry & Neurology - Psychiatry in Washington, DC

Active since February 23, 2006
USCG HQ, COMDT (CG-1122) 2100 2ND ST. SW, RM 5314, WASHINGTON, DC 20593(202) 267-0801 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Carl Tjerandsen M.d. NPPES

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

DR. CARL TJERANDSEN M.D. (NPI 1457327280) is an individual psychiatry provider in Washington, District Of Columbia, licensed in California (G25806) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1457327280
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. CARL TJERANDSENCredential: M.D.
Location AddressUSCG HQ, COMDT (CG-1122) 2100 2ND ST. SW, RM 5314Washington, DC 20593-0001
Mailing AddressUscg Hq, Comdt (cg-1122) 2100 2nd St. Sw, Rm 5314Washington, DC 20593-0001
Phone(202) 267-0801
Sole ProprietorNo
Enumeration DateFebruary 23, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1457327280 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · G25806
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
USCG HQ, COMDT (CG-1122) 2100 2ND ST. SW, Washington, DC 20593
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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 Carl Tjerandsen's NPI number?

The NPI number for Carl Tjerandsen is 1457327280. It was assigned to this individual provider in the NPPES registry on February 23, 2006.

Where is Carl Tjerandsen located?

Carl Tjerandsen practices at Uscg Hq, Comdt (cg-1122) 2100 2nd St. SW Rm 5314, Washington, DC 20593. The listed phone number is (202) 267-0801.

What is Carl Tjerandsen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Carl Tjerandsen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.