NPPES file of Aug 9, 2026

Robert Abbott, DO

Internal Medicine Physician · Oroville, CA

Robert Abbott, DO is an internal medicine physician with a practice address in Oroville, California, and NPI 1477015329, issued on Apr 1, 2019. Check the license (California 20A2066, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477015329
Name
Robert Abbott
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A2066 CA
Self-reported in NPPES; status is on the state search
Practice location
2767 Olive Hwy, Oroville, CA 95966
Phone
(530) 533-8500
Enumerated
Apr 1, 2019
Record last updated
Nov 4, 2022
Medicare enrollment
Enrolled (PECOS I20230104002336); accepts Medicare assignment
Medical or professional school
Touro Un College Of Osteopathic Medicine, Vallejo, 2019
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 2767 Olive Hwy

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

  1. Samuel Acebo, MSN, CRNACertified Registered Nurse Anesthetist1083131445
  2. Natashya Adams, FNP-CFamily Nurse Practitioner1063979110
  3. Yesong AhnStudent in an Organized Health Care Education/Training Program1881532810
  4. Vanessa Akines, FNPNurse Practitioner1790417434
  5. Phillip Anderson, MDStudent in an Organized Health Care Education/Training Program1811835572
  6. Massud Atta, MDEmergency Medicine Physician1851956684

Verify Robert Abbott in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A2066
    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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83% fewer Medicare Part D claims than the average internal medicine physician in 2024

552 Medicare Part D claims for 234 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 58 claims were for opioids.

  1. Robert Abbott552
  2. Specialty average3,176

Most prescribed

  1. Prednisone44 claims
  2. Oxycodone Hcl32 claims
  3. Amoxicillin-Clavulanate Potass27 claims
  4. Doxycycline Hyclate27 claims
  5. Atorvastatin Calcium23 claims
  6. Hydrocodone-Acetaminophen23 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Orohealth Corporation A Non Profit Healthcare SystemOroville, CA

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

Robert Abbott among 17,696 internal medicine physician records in California

Robert Abbott, DO is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 86% of them.

  • NPI issued2019 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2019 · median 2004 among the 11,065 with a school on file
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 internal medicine physician records list a practice address in Oroville

They are 19 of the 916 NPPES records with a practice address in Oroville, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sidharth Bagga, MD, MBAOroville, CA 959661285865436
  2. Norman Baron, M.D.Oroville, CA 959661447378682
  3. Virgil Duvernay, MD, PHD, FACPOroville, CA 959661285681056
  4. Matthew Fine, M.D.Oroville, CA 959661760437446
  5. Joan Harter, MDOroville, CA 959661114971322
  6. Anjali Kohli, M.D.Oroville, CA 959661669553533
  7. Linda Lay, D.O.Oroville, CA 959661164717815
  8. Rhea Licuanan, M.D.Oroville, CA 959661609864388

Common questions

What is Robert Abbott, DO's NPI number?

Robert Abbott, DO's National Provider Identifier (NPI) is 1477015329, issued on Apr 1, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Robert Abbott, DO located?

The NPPES record lists a practice address at 2767 Olive Hwy, Oroville, CA, 95966. Phone: (530) 533-8500. Providers update this record themselves, so call before visiting.

How can I verify Robert Abbott, DO's license?

NPPES lists California license number 20A2066, 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.

How much does Robert Abbott, DO prescribe under Medicare Part D?

In 2024, Robert Abbott, DO had 552 Medicare Part D claims for 234 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions 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. 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.