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Registered Nurses in Walnut Creek, CA

Browse 26 Registered Nurse providers listed in NPPES with a practice address in Walnut Creek, California.

26 Healthcare Providers

How Walnut Creek compares with the U.S.

Walnut Creek has 37 Registered Nurses per 100,000 residents, 16% lower than the U.S. rate of 44.

That is 26 active Registered Nurses with a practice address in Walnut Creek, for a population of 70,088.

That is close to the California rate of 34.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

Too few Registered Nurses in Walnut Creek are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Showing 1โ€“20 of 26 providers
With recent CMS data first, then Aโ€“Z

Theresa Runyon , RN NP

Registered Nurse

Active NPI Status Accepts Medicare Assignment
112 La Casa Via, Ste 210, Walnut Creek, CA 945983091
Phone: 9259440351
NPI Identifier 1316948235
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Holly Alley

Registered Nurse

Active NPI Status
2401 Shadelands Drive, Walnut Creek, CA 94598
Phone: 9259794031
NPI Identifier 1417281502
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Jennifer W Blattner , CNM, RN

Registered Nurse

Active NPI Status
1425 S Main St, Labor And Delivery, Walnut Creek, CA 945965318
Phone: 9252955200
NPI Identifier 1447313184
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Simony Kanashiro Fleshman , RN

Registered Nurse

Active NPI Status
2401 Shadelands Dr, Walnut Creek, CA 945982494
Phone: 9259794031
NPI Identifier 1912771395
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Olivia Foy-Claycomb , RN

Registered Nurse

Active NPI Status
2401 Shadelands Dr, Walnut Creek, CA 945982494
Phone: 9259794031
NPI Identifier 1578345609
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Marisa Fragoso

Registered Nurse

Active NPI Status
1357 Oakland Ct, Walnut Creek, CA 945964337
Phone: 9259353010
NPI Identifier 1154181006
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Marisa Gatti

Registered Nurse

Active NPI Status
2513 Venado Camino, Walnut Creek, CA 945983436
Phone: 6507761080
NPI Identifier 1518559434
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Hannah Gini

Registered Nurse

Active NPI Status
1425 S Main St, Walnut Creek, CA 945965318
Phone: 9252954000
NPI Identifier 1467397174
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Deborah Ungar Gyory , RN, CRNA

Registered Nurse

Active NPI Status
1425 S Main St, Walnut Creek, CA 945965318
Phone: 9252954000
NPI Identifier 1609918788
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Aida Ulla Hoekendijk , RN

Registered Nurse

Active NPI Status
330 N Civic Dr, Walnut Creek, CA 945963666
Phone: 9253606300
NPI Identifier 1538759915
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Raechellenicole Kern

Registered Nurse

Active NPI Status
1293 Montego Apt 53, Walnut Creek, CA 945982829
Phone: 9254945218
NPI Identifier 1033056601
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Nancy Lachance

Registered Nurse

Active NPI Status
1357 Oakland Blvd, Walnut Creek, CA 94596
Phone: 9259353010
NPI Identifier 1518441690
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Jean Sy Lim , RN

Registered Nurse

Active NPI Status
2815 Eccleaton Ave., Walnut Creek, CA 94597
Phone: 2253288500
NPI Identifier 1659673705
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Brenda Medina , RN

Registered Nurse

Active NPI Status
1357 Oakland Blvd, Walnut Creek, CA 94596
Phone: 9259353010
NPI Identifier 1528799475
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Fawnda Nguyen , RN

Registered Nurse

Active NPI Status
1357 Oakland Blvd., Walnut Creek, CA 94596
Phone: 9259353010
NPI Identifier 1730999004
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Florinda Daquiz Nicolas , RNFA

Registered Nurse

Active NPI Status
1601 Ygnacio Valley Rd, Walnut Creek, CA 945983122
Phone: 9259393000
NPI Identifier 1477067023
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Linda Marie Peterson , CNM

Registered Nurse

Active NPI Status
1425 S Main St, Walnut Creek, CA 945965318
Phone: 9252955200
NPI Identifier 1477616118
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Marion Macphail Peterson , RN MFT

Registered Nurse

Active NPI Status
1756 Lacassie Avenue, Suite 200, Walnut Creek, CA 945967002
Phone: 9259338300
NPI Identifier 1538280854
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Active NPI Status
Po Box 3365, Walnut Creek, CA 945980365
Phone: 4154620888
NPI Identifier 1982533311
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Mariana Alexandra Saravia , RN

Registered Nurse

Active NPI Status
1357 Oakland Blvd, Walnut Creek, CA 94596
Phone: 9259353010
NPI Identifier 1386507739
View Full Profile

Frequently Asked Questions about Registered Nurse in Walnut Creek

How do I check a Registered Nurse practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.