RONALD M LARSEN MD
NPI 1306870944
Psychiatry & Neurology - Psychiatry in Mason City, IA

Q: What is Ronald Larsen's NPI number?

The NPI number for Ronald Larsen is 1306870944. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Q: What is Ronald Larsen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ronald Larsen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since July 10, 2006

1000 4TH ST SW, MMCNI ADMINISTRATION, MASON CITY, IA 50401(641) 422-7492 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Ronald M Larsen Md NPPES

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

RONALD M LARSEN MD (NPI 1306870944) is an individual psychiatry provider in Mason City, Iowa, licensed in Iowa (20107) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1306870944

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameRONALD M LARSENCredential: MD

Location Address1000 4TH ST SW, MMCNI ADMINISTRATIONMason City, IA 50401-2800

Mailing Address1000 4th St Sw, Mmcni AdministrationMason City, IA 50401-2800 · (641) 422-7492

Phone(641) 422-7492

Sole ProprietorNo

Enumeration DateJuly 10, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1306870944 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 IA · 20107

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.

1000 4TH ST SW, Mason City, IA 50401

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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.

LINDA S VOLD LISW

Social Worker (Clinical)

1000 4TH ST SW, SUITE BS
MASON CITY, IA 50401

Cerro Gordo County (641) 422-7797

BURT HUMBURG MD

Internal Medicine

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 428-7000

SUMATHY NAGRAJ IYENGAR M.D.,

Hospitalist

1000 4TH ST SW, MERCY MEDICAL CENTER-HOSPITALIST DEPT
MASON CITY, IA 50401

Cerro Gordo County (641) 428-7000

DR. SATINDERJIT SINGH M.D.

Emergency Medicine

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 428-7234

ASHLEY MATERN ARNP

Nurse Practitioner (Family)

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 428-6999

ROBERT D. FROEHNER CRNA

Nurse Anesthetist, Certified Registered

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 422-7000

DR. THOMAS P DELANEY MD

Hospitalist

1000 4TH ST SW, SUITE HOSP
MASON CITY, IA 50401

Cerro Gordo County (641) 422-7000

NORTH IOWA MERCY CLINICS

Nurse Practitioner

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 428-5932

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 Ronald Larsen's NPI number?

The NPI number for Ronald Larsen is 1306870944. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Where is Ronald Larsen located?

Ronald Larsen practices at 1000 4th St SW Mmcni Administration, Mason City, IA 50401. The listed phone number is (641) 422-7492.

What is Ronald Larsen'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 Ronald Larsen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.