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Dr. Jeffrey Scott Kopstein, DO
NPI1487041158PAC ID0446507347
- Medicare services, 2024
- 2,958
- Medicare patients, 2024
- 282
- Part D claims, 2024
- 227
- Publications
- 2
- Hospital affiliations
- 3
- 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. Kopstein'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. Jeffrey Scott Kopstein is an internist in Oxnard, California
Dr. Kopstein practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health.
Dr. Kopstein's NPI, 1487041158, was assigned on April 21, 2015. Dr. Kopstein graduated from Arizona College of Osteopathic Medicine - Glendale in 2015. Dr. Kopstein holds California license 20A15232.
NPI and contact details
- NPI
- 1487041158NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446507347
- NPI enumeration date
- April 21, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (805) 988-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey Scott Kopstein practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California
Dr. Kopstein'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. Jeffrey Scott Kopstein is affiliated with 4 sites of care and 4 medical groups
Dr. Kopstein's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. Dr. Kopstein is also affiliated with Community Memorial Hospital - Ventura. The medical group on file is Inpatient Specialist of California PC. Dmand AI also links Dr. Kopstein to 1 more hospital, 3 medical groups and 1 group practice or clinic, each named with a free account.
Community Memorial Hospital - VenturaInpatient Specialist of California PC1 hospitalName with a free account3 medical groupsNames with a free account1 group practice or clinicName with a free account
See all 8 affiliations for Dr. KopsteinSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jeffrey Scott Kopstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kopstein practices, 4 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 |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Jeffrey Scott Kopstein is one of 16,751 internists in California
Internal medicine is Dr. Kopstein's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kopstein is board certified in internal medicine by the AOA Board of Internal Medicine. Dr. Kopstein is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists bile duct problems, bone infection, cardiac arrhythmia, cerebrovascular disease, chronic hypertension, circulation problems, congestive heart failure and electrolyte disorders among the conditions Dr. Kopstein treats.
Internists near Dr. Kopstein
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California62internists in Oxnard29internists at Dignity Health - St. John's Regional Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jeffrey Scott Kopstein billed Medicare for 2,958 services in 2024
CMS data shows 2,958 Medicare services from Dr. Kopstein across 9 procedure codes in 2024, for 282 Medicare patients. Medicare paid $124,387 for them.
Medicare services, 20242,958
Medicare patients282
Paid by Medicare$124,387
Procedure codes9
Dr. Kopstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5252024: 2,174314%
- Office and hospital visits
- 2023: 7332024: 7847%
Where Dr. Kopstein's Medicare services took place, 2024
- In an office2,23976%
- In a facility71924%
Dr. Kopstein compared with the California median for internists, 2024
- Dr. Kopstein
- California median
- Medicare services
- 2,958vs 3618.2 times
- Medicare patients
- 282vs 15187% above
- Part D claims
- 28vs 42193% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Kopstein'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.
Need commercial claims for Dr. Kopstein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kopstein and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeffrey Scott Kopstein treated 282 Medicare patients in 2024, average age 76
CMS counts 282 Medicare patients who saw Dr. Kopstein in 2024. The largest group is 75 to 84, with 104 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.44, 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. Kopstein's median patient age at 66, with 50% women.
Medicare patients, 2024282
Average age76
Average risk score2.44
Also on Medicaid34%
Dr. Kopstein's Medicare patients by age, 2024
Dr. Kopstein's Medicare patients by sex, 2024
- Women14250%
- Men14050%
Chronic conditions among Dr. Kopstein's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Diabetes51%
- Ischemic heart disease51%
- Atrial fibrillation45%
- Chronic kidney disease45%
- Heart failure40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kopstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeffrey Scott Kopstein wrote 227 Medicare Part D claims in 2024
In 2024, Dr. Kopstein wrote 227 Medicare Part D claims for 89 patients. 87% of them were for generic drugs. CMS names the drug for 28 of them, across 2 drugs with 11 or more claims each, at $78 in total drug cost. In 2023, CMS named 60 claims across 4 drugs.
Part D claims, 2024227
Drugs named by CMS2
Total drug cost$78
Part D patients89
Dr. Kopstein's Part D claims by kind of drug, 2024
- Generic198 claims87%
- Brand-name and other29 claims13%
Dr. Kopstein'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. Kopstein's Part D claims, 2024
- Opioids5%12 of 227 claims
- Antibiotics23%53 of 227 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: 602024: 2853%
Drugs named by CMS: 2 in 2024, 4 in 2023.
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. Jeffrey Scott Kopstein offers telehealth to Medicare patients
Dr. Kopstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kopstein as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jeffrey Scott Kopstein has 2 publications on record
Dmand AI links 2 papers to Dr. Kopstein, published from 2014 to 2025.
Papers2
Years published2014 to 2025
Recent publications by Dr. Kopstein
Acta Crystallogr F Struct Biol Commun
Bacterial ProteinsCloning, MolecularCrystallography, X-Ray
See who Dr. Kopstein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kopstein works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jeffrey Scott Kopstein received $902 in industry payments from 2017 to 2025
CMS Open Payments shows 17 general payments to Dr. Kopstein from 11 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $153.
General payments to Dr. Kopstein by program year, 2017 to 2025
Companies that paid Dr. Kopstein the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jeffrey Scott Kopstein graduated from Arizona College of Osteopathic Medicine - Glendale
Dr. Kopstein graduated from Arizona College of Osteopathic Medicine - Glendale in 2015.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Jeffrey Scott Kopstein accepts plans from 15 insurance carriers
Dr. Kopstein is in network with 15 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Kopstein accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- EPO3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Jeffrey Scott Kopstein'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) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (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. Jeffrey Scott Kopstein
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. Jeffrey Scott Kopstein's NPI number?
Dr. Jeffrey Scott Kopstein's NPI number is 1487041158. It was assigned on April 21, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey Scott Kopstein?
Dr. Jeffrey Scott Kopstein is an internist in Oxnard, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jeffrey Scott Kopstein practice?
Dr. Kopstein practices at 1600 N Rose Ave, Oxnard, CA 93030. Dr. Kopstein's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. Dmand AI also links Dr. Kopstein to 1 hospital, 3 medical groups and 1 group practice or clinic.
What is Dr. Jeffrey Scott Kopstein's office phone number?
The practice phone on file for Dr. Kopstein is (805) 988-2500.
What is Dr. Jeffrey Scott Kopstein's medical license number?
Dr. Kopstein holds California license 20A15232.
Which hospitals is Dr. Jeffrey Scott Kopstein affiliated with?
Dr. Kopstein practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California. Dr. Kopstein is also affiliated with Community Memorial Hospital - Ventura. Dmand AI links Dr. Kopstein to 1 more hospital.
What medical group is Dr. Jeffrey Scott Kopstein part of?
Dr. Kopstein is linked to Inpatient Specialist of California PC. Dmand AI links Dr. Kopstein to 3 more medical groups.
Does Dr. Jeffrey Scott Kopstein accept Medicare?
Yes. CMS data shows Dr. Kopstein billed Medicare for 2,958 services in 2024, and Dr. Kopstein accepts Medicare assignment.
Does Dr. Jeffrey Scott Kopstein offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kopstein as offering telehealth services.
How many Medicare patients does Dr. Jeffrey Scott Kopstein see?
CMS counts 282 Medicare patients who saw Dr. Kopstein in 2024, with an average age of 76.
Show 8 more questionsShow fewer questions
Is Dr. Jeffrey Scott Kopstein board certified?
Yes. Dr. Kopstein is board certified in internal medicine by the AOA Board of Internal Medicine.
What services does Dr. Jeffrey Scott Kopstein bill to Medicare?
In 2024, Dr. Kopstein's most billed Medicare services were physical therapy and rehabilitation (97530), hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Jeffrey Scott Kopstein go to medical school?
Dr. Kopstein graduated from Arizona College of Osteopathic Medicine - Glendale in 2015.
What drugs does Dr. Jeffrey Scott Kopstein prescribe most?
In 2024 Medicare Part D data, Dr. Kopstein's most prescribed drugs by claims were Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. Jeffrey Scott Kopstein received payments from drug or device companies?
CMS Open Payments shows $902 in general payments to Dr. Kopstein from 11 companies from 2017 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Jeffrey Scott Kopstein been practicing?
Dr. Kopstein graduated from medical school in 2015, 11 years ago.
Does Dr. Jeffrey Scott Kopstein do research?
Dmand AI links 2 publications to Dr. Kopstein, published from 2014 to 2025.
What insurance does Dr. Jeffrey Scott Kopstein accept?
Dr. Kopstein is in network with 15 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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