Randall Jon Holtby, M.D.
Anesthesiology Physician · Oxnard, CA
Randall Jon Holtby, M.D. is an anesthesiology physician with a practice address in Oxnard, California, and NPI 1801320569, issued on Apr 19, 2017. Check the license (California A178033, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Randall Jon Holtby
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A178033 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1600 N Rose Ave, Oxnard, CA 93030
- Phone
- (805) 988-2500
- Enumerated
- Apr 19, 2017
- Record last updated
- Jan 11, 2023
- Medicare enrollment
- Enrolled (PECOS I20230103002215); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 1600 N Rose Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- David Aguilar, M.D.Anesthesiology Physician1568484921
- Michelle AmparoRegistered Nurse1386593994
- Melissa Arbar, DOAnesthesiology Physician1063875136
- Sulaiman Barkho, MDInternal Medicine Physician1710417209
Verify Randall Jon Holtby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178033Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 95 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $198.62
3 payments; by number, the most common kind was food and beverage; the largest payer was Biosense Webster, Inc. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Palm Springs Anesthesia Services PCOxnard, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Randall Jon Holtby among 7,571 anesthesiology physician records in California
Randall Jon Holtby, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 83% of them.
- NPI issued2017 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2017 · median 2006 among the 4,868 with a school on file
- Record last updated2023 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Oxnard → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- David Aguilar, M.D.Oxnard, CA 930301568484921
- Jon Belleville, M.D.Oxnard, CA 930301013069426
- William Berard, M.D.Oxnard, CA 930301639289705
- Thomas Doria, M.D.Oxnard, CA 930301619087764
- Mark Harlacher, M.D.Oxnard, CA 930301457360638
- Vance Kalcic, M.D.Oxnard, CA 930301669586814
- Robert Martin, M.D.Oxnard, CA 930301104841535
- Eli MatthewsOxnard, CA 930301386819118
Common questions
What is Randall Jon Holtby, M.D.'s NPI number?
Randall Jon Holtby, M.D.'s National Provider Identifier (NPI) is 1801320569, issued on Apr 19, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Randall Jon Holtby, M.D. located?
The NPPES record lists a practice address at 1600 N Rose Ave, Oxnard, CA, 93030. Phone: (805) 988-2500. Providers update this record themselves, so call before visiting.
How can I verify Randall Jon Holtby, M.D.'s license?
NPPES lists California license number A178033, 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.
What is Randall Jon Holtby, M.D.'s MIPS final score?
The 2023 MIPS final score is 95 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.