Ruth Marks
Registered Nurse · Newhall, CA
Ruth Marks is a registered nurse with a practice address in Newhall, California, and NPI 1720162647, issued on Oct 25, 2006. Check the license (California 389684, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ruth Marks
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- 389684 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25050 Peachland Ave, Newhall, CA 91321
- Phone
- (661) 222-2800
- Enumerated
- Oct 25, 2006
- Record last updated
- May 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (661) 255-3428
- Entity
- Type 1 · individual
8 nearest registered nurse records → All 13,506 in California → Look up another NPI →
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Verify Ruth Marks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 389684Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ruth Marks among 13,506 registered nurse records in California
Ruth Marks is one of 13,506 registered nurse records with a practice address in California. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 97% newer
- In a Medicare fileNo · 3% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2011 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Registered Nurse providers in California
There are 13,506 registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 13,506 in California → Every provider in Newhall → Registered Nurse nationwide →
The 8 registered nurse records with the nearest ZIP codes
- Maria Aleli TayzonSanta Clarita, CA 913211437961471
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- Gordon Hands, CRNANewbury Park, CA 913201720150733
- Amy Ward, RNThousand Oaks, CA 913201912361676
- Dolly Alviz-Gutierrez, RNNorthridge, CA 913241790307536
- Stephanie Barrera, RNNorthridge, CA 913241699532093
- Marisol Gonzalez, RNNorthridge, CA 913241477335628
- Michael Krugel, RNNorthridge, CA 913241083938724
Common questions
What is Ruth Marks's NPI number?
Ruth Marks's National Provider Identifier (NPI) is 1720162647, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Marks located?
The NPPES record lists a practice address at 25050 Peachland Ave, Newhall, CA, 91321. Phone: (661) 222-2800. Providers update this record themselves, so call before visiting.
How can I verify Ruth Marks's license?
NPPES lists California license number 389684, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.