Dr. Randall Jon Holtby, MD
- Medicare services, 2024
- 106
- Medicare patients, 2024
- 214
- Publications
- 2
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 1600 N Rose Ave, Oxnard, CA 93030
- Practice phone
- Call (805) 988-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Holtby's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Randall Jon Holtby is an anesthesiologist in Oxnard, California
Dr. Holtby practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health.
Dr. Holtby's NPI, 1801320569, was assigned on April 19, 2017. Dr. Holtby graduated from St. George's University School of Medicine in 2017. Dr. Holtby holds California license A178033.
- NPI
- 1801320569NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618245044
- NPI enumeration date
- April 19, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 988-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Randall Jon Holtby practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California
Dr. Holtby's primary practice is Dignity Health - St. John's Regional Medical Center, at 1600 N Rose Ave, Oxnard, CA 93030 in Ventura County. The practice phone is (805) 988-2500.
- Dignity Health - St. John's Regional Medical Center1600 N Rose Ave, Oxnard, CA 93030 · Ventura CountyPhone(805) 988-2500
Source: Dmand AI Affiliation Data
Dr. Randall Jon Holtby is affiliated with 2 sites of care and 1 medical group
Dr. Holtby's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. The medical group on file is Palm Spring Anesthesia. Dmand AI also links Dr. Holtby to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Randall Jon Holtby's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holtby practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - St. John's Regional Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Randall Jon Holtby is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Holtby's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Holtby is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Holtby's licenses on file in 4 states: California, New Jersey, Michigan and Ohio.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- New Jersey license
- Michigan license
- Ohio license
Anesthesiologists near Dr. Holtby
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Randall Jon Holtby billed Medicare for 106 services in 2024
CMS data shows 106 Medicare services from Dr. Holtby across 5 procedure codes in 2024, for 214 Medicare patients. Medicare paid $24,987 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Holtby's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1082024: 1062%
- Surgery
- 2023: 142024: 0100%
Dr. Holtby compared with the California median for anesthesiologists, 2024
- Dr. Holtby
- California median
- Medicare services
- 106vs 7247% above
- Medicare patients
- 214vs 14350% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Holtby's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Holtby and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Randall Jon Holtby treated 214 Medicare patients in 2024, average age 77
CMS counts 214 Medicare patients who saw Dr. Holtby in 2024. The largest group is 75 to 84, with 91 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 1.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Holtby's median patient age at 70, with 47% women.
Dr. Holtby's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Holtby's Medicare patients by sex, 2024
- Women10650%
- Men10850%
Chronic conditions among Dr. Holtby's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Atrial fibrillation55%
- Arthritis53%
- Ischemic heart disease50%
- Diabetes46%
- Chronic kidney disease45%
- Heart failure44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Holtby's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Randall Jon Holtby scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Holtby for performance year 2024, reported as part of a group. Dr. Holtby accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Holtby's MIPS scores, performance year 2024
- 85of 100Final score
- 70of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Randall Jon Holtby has 2 publications on record
Dmand AI links 2 papers to Dr. Holtby, published from 2010 to 2014. Dr. Holtby's most frequent co-author is Jonathan Spencer Jahr, MD.
Dr. Holtby's most frequent co-authors
Recent publications by Dr. Holtby
See who Dr. Holtby researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Holtby works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Randall Jon Holtby received $526 in industry payments from 2023 to 2025
CMS Open Payments shows 9 general payments to Dr. Holtby from 4 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $328.
General payments to Dr. Holtby by program year, 2023 to 2025
Companies that paid Dr. Holtby the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Randall Jon Holtby graduated from St. George's University School of Medicine
Dr. Holtby graduated from St. George's University School of Medicine in 2017.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Randall Jon Holtby accepts plans from 2 insurance carriers
Dr. Holtby is in network with 2 carriers, including Excellus BlueCross BlueShield and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- CMS Medicare
Plan types Dr. Holtby accepts, by number of carriers
- Medicare2
- EPO1
- HMO1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Randall Jon Holtby's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Randall Jon Holtby
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Randall Jon Holtby's NPI number?
Dr. Randall Jon Holtby's NPI number is 1801320569. It was assigned on April 19, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Randall Jon Holtby?
Dr. Randall Jon Holtby is an anesthesiologist in Oxnard, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Randall Jon Holtby practice?
Dr. Holtby practices at 1600 N Rose Ave, Oxnard, CA 93030. Dr. Holtby's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. Dmand AI also links Dr. Holtby to 1 hospital.
What is Dr. Randall Jon Holtby's office phone number?
The practice phone on file for Dr. Holtby is (805) 988-2500.
What is Dr. Randall Jon Holtby's medical license number?
Dr. Holtby holds California license A178033, one of the licenses on file in 4 states.
Which states has Dr. Randall Jon Holtby been licensed in?
Dmand AI has state licenses on file for Dr. Holtby in California (2022 to 2026), New Jersey (2021 to 2023), Michigan (2020 to 2021) and Ohio (2017 to 2021).
Which hospitals is Dr. Randall Jon Holtby affiliated with?
Dr. Holtby practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California. Dmand AI links Dr. Holtby to 1 more hospital.
What medical group is Dr. Randall Jon Holtby part of?
Dr. Holtby is linked to Palm Spring Anesthesia.
Does Dr. Randall Jon Holtby accept Medicare?
Yes. CMS data shows Dr. Holtby billed Medicare for 106 services in 2024, and Dr. Holtby accepts Medicare assignment.
What is Dr. Randall Jon Holtby's MIPS score?
Dr. Holtby's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Randall Jon Holtby see?
CMS counts 214 Medicare patients who saw Dr. Holtby in 2024, with an average age of 77.
Is Dr. Randall Jon Holtby board certified?
Yes. Dr. Holtby is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Randall Jon Holtby bill to Medicare?
In 2024, Dr. Holtby's most billed Medicare services were anesthesia (00537), anesthesia (01926) and anesthesia (01922).
Where did Dr. Randall Jon Holtby go to medical school?
Dr. Holtby graduated from St. George's University School of Medicine in 2017.
Has Dr. Randall Jon Holtby received payments from drug or device companies?
CMS Open Payments shows $526 in general payments to Dr. Holtby from 4 companies from 2023 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Randall Jon Holtby been practicing?
Dr. Holtby graduated from medical school in 2017, 9 years ago.
Does Dr. Randall Jon Holtby do research?
Dmand AI links 2 publications to Dr. Holtby, published from 2010 to 2014.
Who does Dr. Randall Jon Holtby publish with?
Dr. Holtby's most frequent co-authors are Jonathan Spencer Jahr, MD (2 shared papers).
What insurance does Dr. Randall Jon Holtby accept?
Dr. Holtby is in network with 2 carriers, including Excellus BlueCross BlueShield and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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