Ann Marker, RN
Registered Nurse · Claremont, CA
Ann Marker, RN is a registered nurse with a practice address in Claremont, California, and NPI 1144628405, issued on Dec 18, 2014. Check the license (California 703942, 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
- Ann Marker
- Credential
- RN
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- 703942 CA
Self-reported in NPPES; status is on the state search - Practice location
- 757 College Way, Claremont, CA 91711
- Phone
- (909) 621-8222
- Enumerated
- Dec 18, 2014
- Record last updated
- Dec 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest registered nurse records → All 13,506 in California → Look up another NPI →
Also registered at 757 College Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michele BoboskyRegistered Nurse1962873364
- Reina Espinoza, RNRegistered Nurse1871991083
- Jennie Ho, M.D.Family Medicine Physician1013082403
- Susanne Hoisington, RNRegistered Nurse1588062731
- Suzanne Knutzen, NPFamily Nurse Practitioner1225103617
- Angela NingFamily Nurse Practitioner1396966982
Verify Ann Marker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 703942Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ann Marker among 13,506 registered nurse records in California
Ann Marker, RN 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 2014, is newer than 27% of them.
- NPI issued2014 · 27% of these records are older, 70% newer
- In a Medicare fileNo · 3% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2014 · 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).
10 registered nurse records list a practice address in Claremont
They are 10 of the 800 NPPES records with a practice address in Claremont, and 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 Claremont → Registered Nurse nationwide →
The 8 registered nurse records with the nearest ZIP codes
- Michele BoboskyClaremont, CA 917111962873364
- Reina Espinoza, RNClaremont, CA 917111871991083
- Annalyn Haddad, REGISTERED NURSEClaremont, CA 917111295437788
- Susanne Hoisington, RNClaremont, CA 917111588062731
- Wendy McCordClaremont, CA 917111033669221
- Morgan MontalvoClaremont, CA 917111134866536
- Felix NyangauClaremont, CA 917111215757737
- Dorothy OtienoClaremont, CA 917111871313395
Common questions
What is Ann Marker, RN's NPI number?
Ann Marker, RN's National Provider Identifier (NPI) is 1144628405, issued on Dec 18, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Ann Marker, RN located?
The NPPES record lists a practice address at 757 College Way, Claremont, CA, 91711. Phone: (909) 621-8222. Providers update this record themselves, so call before visiting.
How can I verify Ann Marker, RN's license?
NPPES lists California license number 703942, 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.