NPPES file of Aug 9, 2026

Thomas Otheneal Chamberlin, RN

Psychiatric/Mental Health Registered Nurse · Merced, CA

Thomas Otheneal Chamberlin, RN is a psychiatric/mental health registered nurse with a practice address in Merced, California, and NPI 1568598704, issued on Feb 24, 2007. Check the license (California 587265, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568598704
Name
Thomas Otheneal Chamberlin
Credential
RN
Primary taxonomy
Psychiatric/Mental Health Registered Nurse 163WP0808X
License number
587265 CA
Self-reported in NPPES; status is on the state search
Practice location
300 E 15TH St, Merced, CA 95340
Phone
(209) 381-6879
Enumerated
Feb 24, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest psychiatric/mental health registered nurse records → All 2,568 in California → Look up another NPI →

Also registered at 300 E 15TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joleen Adams, CASAddiction (Substance Use Disorder) Counselor1649325911
  2. Deborah Atkinson, RNChild & Adolescent Psychiatric/Mental Health Registered Nurse1457402901
  3. Sara Clinton, RN 684418Adult Psychiatric/Mental Health Registered Nurse1922133503
  4. Barbara Coffelt, LVNLicensed Vocational Nurse1760519821
  5. Catalina EliserioMental Health Counselor1588718712
  6. Vickey FrankCase Manager/Care Coordinator1518012871

Verify Thomas Otheneal Chamberlin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 587265    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Thomas Otheneal Chamberlin among 2,568 psychiatric/mental health registered nurse records in California

Thomas Otheneal Chamberlin, RN is one of 2,568 psychiatric/mental health registered nurse records with a practice address in California. 2% 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 2007, is newer than 4% of them.

  • NPI issued2007 · 4% of these records are older, 87% newer
  • In a Medicare fileNo · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WP0808X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Registered Nurse providers in California

There are 2,568 psychiatric/mental health registered nurse records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,568 in California → Every provider in Merced → Psychiatric/Mental Health Registered Nurse nationwide →

The 8 psychiatric/mental health registered nurse records with the nearest ZIP codes

  1. Susan Fowle, RNMerced, CA 953401962539262
  2. Austin Bradley, R.N.Merced, CA 953411194065136
  3. Pablo Ceja, RNMerced, CA 953411770842304
  4. Aaron CisnerosMerced, CA 953411528720760
  5. Dana Fox, RNMerced, CA 953411912193707
  6. Danielle JosephMerced, CA 953411417520354
  7. Brian NguyenMerced, CA 953411679871925
  8. Robin Piwowarski, R.N.Merced, CA 953411073870309

Common questions

What is Thomas Otheneal Chamberlin, RN's NPI number?

Thomas Otheneal Chamberlin, RN's National Provider Identifier (NPI) is 1568598704, issued on Feb 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Otheneal Chamberlin, RN located?

The NPPES record lists a practice address at 300 E 15TH St, Merced, CA, 95340. Phone: (209) 381-6879. Providers update this record themselves, so call before visiting.

How can I verify Thomas Otheneal Chamberlin, RN's license?

NPPES lists California license number 587265, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.