Dr. Cary David Alberstone, MD

  • Oxnard, CA
  • Neurosurgeon
NPI1346253689PAC ID9739244757
Medicare services, 2024
156
Medicare patients, 2024
114
Part D claims, 2024
254
Hospital affiliations
2
Industry payments
$841
Practice address
1700 N Rose Ave, Oxnard, CA 93030
Practice phone
Call (805) 204-5000
Professional email
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Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

St. John's Outpatient Surgery Center, LP

Oxnard, California

See all 4 affiliations

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Dr. Cary David Alberstone is a neurosurgeon in Oxnard, California

Dr. Alberstone practices at St. John's Outpatient Surgery Center, LP in Oxnard, California.

Dr. Alberstone's NPI, 1346253689, was assigned on August 15, 2006. Dr. Alberstone holds California license G76620.

NPI and contact details
Medicare PAC ID
9739244757
NPI enumeration date
August 15, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(805) 204-5000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
61
Medical school graduation
1991

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Cary David Alberstone practices at St. John's Outpatient Surgery Center, LP in Oxnard, California

Dr. Alberstone's primary practice is St. John's Outpatient Surgery Center, LP, at 1700 N Rose Ave, Oxnard, CA 93030 in Ventura County. The practice phone is (805) 204-5000.

  • St. John's Outpatient Surgery Center, LP
    1700 N Rose Ave, Oxnard, CA 93030 · Ventura CountyPhone(805) 204-5000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Cary David Alberstone is affiliated with 4 sites of care

Dr. Alberstone's primary practice is St. John's Outpatient Surgery Center, LP in Oxnard, California. Dr. Alberstone is also affiliated with Dignity Health - St. John's Regional Medical Center. Dmand AI also links Dr. Alberstone to 1 more hospital and 1 physician office, each named with a free account.

See all 4 affiliations for Dr. Alberstone

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Cary David Alberstone's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alberstone practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St. John's Outpatient Surgery Center, LPAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Cary David Alberstone is one of 846 neurosurgeons in California

Neurological surgery is Dr. Alberstone's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Alberstone is licensed in California.

Specialties and state licenses

  • Neurological surgery, CaliforniaPrimaryLicense G76620 · taxonomy 207T00000X

Neurosurgeons near Dr. Alberstone

Counts of neurosurgeons with a Dmand AI profile, by place and practice. Each opens the list.

846neurosurgeons in California
5neurosurgeons in Oxnard

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Cary David Alberstone billed Medicare for 156 services in 2024

CMS data shows 156 Medicare services from Dr. Alberstone across 2 procedure codes in 2024, all of them office visits, for 114 Medicare patients. Medicare paid $18,687 for them. Every service was in an office.

Medicare services, 2024156
Medicare patients114
Paid by Medicare$18,687
Procedure codes2

Dr. Alberstone's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1562024: 156No change

Dr. Alberstone compared with the California median for neurosurgeons, 2024

  • Dr. Alberstone
  • California median
Medicare services
156vs 21628% below
Medicare patients
114vs 15426% below
Part D claims
218vs 268.4 times

Medians across 679 neurosurgeons in California with Dmand AI profiles that report each measure.

Dr. Alberstone'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.

See all procedures by Dr. Alberstone

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Alberstone and other neurosurgeons in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Cary David Alberstone treated 114 Medicare patients in 2024, average age 76

CMS counts 114 Medicare patients who saw Dr. Alberstone in 2024. The largest group is 75 to 84, with 46 patients. 75% of them have arthritis, and 75% have high blood pressure. 20% are also on Medicaid. Their average risk score is 1.29, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Alberstone's median patient age at 69, with 55% women.

Medicare patients, 2024114
Average age76
Average risk score1.29
Also on Medicaid20%

Dr. Alberstone's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Alberstone's Medicare patients by sex, 2024

  • Women6557%
  • Men4943%

Chronic conditions among Dr. Alberstone's Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes39%
  5. Anxiety30%
  6. Ischemic heart disease30%
  7. Mood disorders28%
  8. Depression25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Alberstone's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women55%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Cary David Alberstone wrote 254 Medicare Part D claims in 2024

In 2024, Dr. Alberstone wrote 254 Medicare Part D claims for 81 patients. 98% of them were for generic drugs. CMS names the drug for 218 of them, across 7 drugs with 11 or more claims each, at $2,537 in total drug cost. In 2023, CMS named 161 claims across 5 drugs.

Part D claims, 2024254
Drugs named by CMS7
Total drug cost$2,537
Part D patients81

Dr. Alberstone's Part D claims by kind of drug, 2024

  • Generic249 claims98%
  • Brand-name and other5 claims2%

Dr. Alberstone's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Alberstone's Part D claims, 2024

  • Opioids37%94 of 254 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1612024: 21835%

Drugs named by CMS: 7 in 2024, 5 in 2023.

See all prescribing by Dr. Alberstone

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Cary David Alberstone ranks in the 49th percentile for laminectomy or laminotomy (partial removal of spine bones) in Medicare

Dr. Alberstone accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 20 procedures of laminectomy or laminotomy (partial removal of spine bones) by Dr. Alberstone, more than 49% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Alberstone ranks in Medicare procedure volume

Laminectomy or laminotomy (partial removal of spine bones)
49th percentile20 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Spinal fusion: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Cary David Alberstone received $841 in industry payments from 2016 to 2022

CMS Open Payments shows 15 general payments to Dr. Alberstone from 3 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. DePuy Synthes Sales Inc. paid the most, $789.

General payments to Dr. Alberstone by program year, 2016 to 2022

Companies that paid Dr. Alberstone the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Alberstone

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Cary David Alberstone's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Cary David Alberstone

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. Cary David Alberstone's NPI number?

Dr. Cary David Alberstone's NPI number is 1346253689. It was assigned on August 15, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Cary David Alberstone?

Dr. Cary David Alberstone is a neurosurgeon in Oxnard, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Dr. Cary David Alberstone practice?

Dr. Alberstone practices at 1700 N Rose Ave, Oxnard, CA 93030. Dr. Alberstone's primary practice is St. John's Outpatient Surgery Center, LP in Oxnard, California. Dmand AI also links Dr. Alberstone to 1 hospital and 1 physician office.

What is Dr. Cary David Alberstone's office phone number?

The practice phone on file for Dr. Alberstone is (805) 204-5000.

What is Dr. Cary David Alberstone's medical license number?

Dr. Alberstone holds California license G76620.

Which hospitals is Dr. Cary David Alberstone affiliated with?

Dr. Alberstone is affiliated with Dignity Health - St. John's Regional Medical Center. Dmand AI links Dr. Alberstone to 1 more hospital.

Does Dr. Cary David Alberstone accept Medicare?

Yes. CMS data shows Dr. Alberstone billed Medicare for 156 services in 2024, and Dr. Alberstone accepts Medicare assignment.

How many Medicare patients does Dr. Cary David Alberstone see?

CMS counts 114 Medicare patients who saw Dr. Alberstone in 2024, with an average age of 76.

What services does Dr. Cary David Alberstone bill to Medicare?

In 2024, Dr. Alberstone's most billed Medicare services were office visit, new patient (99204) and office visit, established patient (99214).

What drugs does Dr. Cary David Alberstone prescribe most?

In 2024 Medicare Part D data, Dr. Alberstone's most prescribed drugs by claims were Gabapentin, Oxycodone-Acetaminophen and Meloxicam.

Has Dr. Cary David Alberstone received payments from drug or device companies?

CMS Open Payments shows $841 in general payments to Dr. Alberstone from 3 companies from 2016 to 2022. The largest total came from DePuy Synthes Sales Inc.

How long has Dr. Cary David Alberstone been practicing?

Dr. Alberstone graduated from medical school in 1991, 35 years ago.

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