NPPES file of Aug 9, 2026

Mark Douglas Bishop

Psychiatric/Mental Health Registered Nurse · San Luis Obispo, CA

Mark Douglas Bishop is a psychiatric/mental health registered nurse with a practice address in San Luis Obispo, California, and NPI 1225196579, issued on Dec 5, 2006. Check the license (California 509248, 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
1225196579
Name
Mark Douglas Bishop
Primary taxonomy
Psychiatric/Mental Health Registered Nurse 163WP0808X
License number
509248 CA
Self-reported in NPPES; status is on the state search
Practice location
2178 Johnson Ave, San Luis Obispo, CA 93401
Phone
(805) 781-4711
Enumerated
Dec 5, 2006
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 2178 Johnson Ave

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

  1. Adrianna Aguilar, LVNLicensed Vocational Nurse1730664855
  2. Jeanette AguilarCounselor1932576337
  3. Connie AhnerCounselor1447309026
  4. Adolphe AlexanderLicensed Vocational Nurse1316517303
  5. Donald AllardLicensed Vocational Nurse1144993817
  6. Kimberly Allen, PHD, RNRegistered Nurse1093460982

Verify Mark Douglas Bishop 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 509248    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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Mark Douglas Bishop among 2,568 psychiatric/mental health registered nurse records in California

Mark Douglas Bishop 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 2006, is newer than 0% of them.

  • NPI issued2006 · 0% of these records are older, 96% 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 San Luis Obispo → Psychiatric/Mental Health Registered Nurse nationwide →

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

  1. Angela Atwell, R.N.San Luis Obispo, CA 934011730470154
  2. Mary Benson, RNSan Luis Obispo, CA 934011013196112
  3. Patrick Cady, R.N.San Luis Obispo, CA 934011255670808
  4. Emily CarySan Luis Obispo, CA 934011992129498
  5. Federico Castillo, R.N.San Luis Obispo, CA 934011043502636
  6. Darla HendersonSan Luis Obispo, CA 934011659820900
  7. Diane Huettner, RNSan Luis Obispo, CA 934011497039671
  8. Andrew Jones, RNSan Luis Obispo, CA 934011689931156

Common questions

What is Mark Douglas Bishop's NPI number?

Mark Douglas Bishop's National Provider Identifier (NPI) is 1225196579, issued on Dec 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Douglas Bishop located?

The NPPES record lists a practice address at 2178 Johnson Ave, San Luis Obispo, CA, 93401. Phone: (805) 781-4711. Providers update this record themselves, so call before visiting.

How can I verify Mark Douglas Bishop's license?

NPPES lists California license number 509248, 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.