What is Ronald Marek's NPI number?

Ronald Marek's National Provider Identifier (NPI) is 1255126405, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ronald Marek's specialty?

Ronald Marek is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).

Where is Ronald Marek located?

Ronald Marek's practice location on file with NPPES is 1072 Hellam St, Monterey, CA 93940-2126.

What is Ronald Marek's phone number?

The practice phone number listed in the NPPES registry for Ronald Marek is (773) 431-3141.

Is Ronald Marek's NPI active?

Yes — Ronald Marek's NPI (1255126405) is active in the NPPES registry as of the last update on 2025-04-10.

IndividualActive

Ronald Marek, RN

NPI 1255126405 · Registered Nurse · Monterey, CA

Ronald Marek, RN is a Registered Nurse provider in Monterey, CA (NPI 1255126405).

Provider details

NPI number: 1255126405
Entity type: Individual
Primary specialty: Registered NurseNursing Service Providers
Credential: RN
Sex: Male
Sole proprietor: Yes
License: 95129563 (CA)

Specialties & taxonomies

Registered NursePrimary163W00000XLicense 95129563 (CA)
Nursing Service Providers

Profile Score

Established profile(55/100 index)

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

Registry tenure38% of score
1 yr 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

1072 Hellam St

Monterey, CA 93940-2126

Phone: (773) 431-3141

Street-level locationGet directions

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Mailing address