What is Ronald Larsen's NPI number?

Ronald Larsen's National Provider Identifier (NPI) is 1306870944, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ronald Larsen's specialty?

Ronald Larsen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is Ronald Larsen located?

Ronald Larsen's practice location on file with NPPES is 1000 4th St Sw, Mason City, IA 50401-2800.

What is Ronald Larsen's phone number?

The practice phone number listed in the NPPES registry for Ronald Larsen is (641) 422-7492.

Is Ronald Larsen's NPI active?

Yes — Ronald Larsen's NPI (1306870944) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Ronald Larsen, MD

NPI 1306870944 · Psychiatry Physician · Mason City, IA

Ronald Larsen, MD is a Psychiatry Physician provider in Mason City, IA (NPI 1306870944).

Provider details

NPI number: 1306870944
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 20107 (IA)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 20107 (IA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1000 4th St Sw

Mmcni Administration

Mason City, IA 50401-2800

Phone: (641) 422-7492

Street-level locationGet directions

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Mailing address