NPPES file of Aug 9, 2026

Richard Keith Hollis, DO

Diagnostic Radiology Physician · Long Beach, CA

Richard Keith Hollis, DO is a diagnostic radiology physician with a practice address in Long Beach, California, and NPI 1831119254, issued on Jul 20, 2006. Check the license (California 14152, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1831119254
Name
Richard Keith Hollis
Credential
DO
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
14152 CA
Self-reported in NPPES; status is on the state search
Practice location
2801 Atlantic Ave, Long Beach, CA 90806
Phone
(562) 933-1550
Enumerated
Jul 20, 2006
Record last updated
May 27, 2026
Medicare enrollment
Enrolled (PECOS I20080222000304); may accept Medicare assignment
Medical or professional school
Midwestern University, Chicago College Of Osteopathic Med, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2801 Atlantic Ave

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

  1. Naima Abdirahman, NPAcute Care Nurse Practitioner1215640560
  2. William AbeClinical Social Worker1316550148
  3. Holly Adams, MSW, LCSW, OSW-CClinical Social Worker1639591134
  4. Jennifer Agnew, PHARM. DPharmacist1285435685
  5. Mannat Agnish, MD, MPHStudent in an Organized Health Care Education/Training Program1881321883
  6. Mary Elaine Aguilar-Choomngern, NPMedical-Surgical Registered Nurse1033765474

Verify Richard Keith Hollis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 14152
    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
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 11 group practices

  1. Contemporary Diagnostic Imaging LLCSecaucus, NJ
  2. County OF MontereySalinas, CA
  3. Focus Medical ImagingDanville, VA
  4. Fullerton Radiology Medical Group IncDanville, VA
  5. Hawaii Permanente Medical Group IncHonolulu, HI
  6. Insight Chicago IncChicago, IL
  7. Integrated Imaging Consultants LLCDanville, VA
  8. Kennewick Radiology Group PCDanville, VA
  9. Menalam Health Services PCDanville, VA
  10. Peninsula Radiological Associates LimitedDanville, VA
  11. St Jude Radiology Medical Group IncDanville, VA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Richard Keith Hollis among 4,500 diagnostic radiology physician records in California

Richard Keith Hollis, DO is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1998 · median 2004 among the 3,130 with a school on file
  • Record last updated2026 · 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 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Matthew Benedict, M.D.Long Beach, CA 908061528008125
  2. Richard Chai, MDLong Beach, CA 908061477535532
  3. Philip Eisinger, DOLong Beach, CA 908061750371852
  4. Robert Farrell, MDLong Beach, CA 908061952386476
  5. Janice Hwang, MDLong Beach, CA 908061164412763
  6. Francine Kim, M.D.Long Beach, CA 908061790779783
  7. Archana Lucchesi, M.D.Long Beach, CA 908061225108533
  8. Mahendra Panchal, MDLong Beach, CA 908061518980796

Common questions

What is Richard Keith Hollis, DO's NPI number?

Richard Keith Hollis, DO's National Provider Identifier (NPI) is 1831119254, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Richard Keith Hollis, DO located?

The NPPES record lists a practice address at 2801 Atlantic Ave, Long Beach, CA, 90806. Phone: (562) 933-1550. Providers update this record themselves, so call before visiting.

How can I verify Richard Keith Hollis, DO's license?

NPPES lists California license number 14152, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.