Dr. Karo Torosian, DO
- Medicare services, 2024
- 3,988
- Medicare patients, 2024
- 563
- Part D claims, 2024
- 1,683
- Hospital affiliations
- 4
- Industry payments
- $2,045
- Practice address
- 960 W San Marcos Blvd, San Marcos, CA 92078
- Practice phone
- Call (858) 538-1083
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Carmel Mountain Dialysis
San Marcos, California
Find Dr. Torosian'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. Karo Torosian is a nephrologist in San Marcos, California
Dr. Torosian practices at Carmel Mountain Dialysis in San Marcos, California.
Dr. Torosian's NPI, 1275822082, was assigned on April 1, 2011. Dr. Torosian graduated from WesternU College of Osteopathic Medicine of the Pacific in 2011. Dr. Torosian's California license number on file is 20A12445.
- NPI
- 1275822082NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476771114
- NPI enumeration date
- April 1, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (858) 538-1083
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karo Torosian practices at Carmel Mountain Dialysis in San Marcos, California
Dr. Torosian's primary practice is Carmel Mountain Dialysis, at 960 W San Marcos Blvd, San Marcos, CA 92078 in San Diego County. The practice phone is (858) 538-1083.
- Carmel Mountain Dialysis960 W San Marcos Blvd, San Marcos, CA 92078 · San Diego CountyPhone(858) 538-1083
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karo Torosian is affiliated with 9 sites of care and 2 medical groups
Dr. Torosian's primary practice is Carmel Mountain Dialysis in San Marcos, California. Dr. Torosian is also affiliated with Scripps Memorial Hospital La Jolla. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Torosian to 3 more hospitals, 2 dialysis centers, 2 group practices and clinics and 1 medical group, each named with a free account.
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. Karo Torosian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Torosian practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Carmel Mountain Dialysis | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karo Torosian is one of 1,401 nephrologists in California
Nephrology is Dr. Torosian's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Torosian is board certified in internal medicine by the American Board of Internal Medicine. Dr. Torosian has a license on file in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Clinical focus
Dmand AI lists acute kidney failure, chronic kidney disease, fluid and electrolyte imbalances and kidney cysts among the conditions Dr. Torosian treats.
Nephrologists near Dr. Torosian
Counts of nephrologists 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. Karo Torosian billed Medicare for 3,988 services in 2024
CMS data shows 3,988 Medicare services from Dr. Torosian across 14 procedure codes in 2024, for 563 Medicare patients. Medicare paid $270,994 for them.
Dr. Torosian's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0482024: 3,134199%
- Other services
- 2023: 02024: 496
- Tests and treatments
- 2023: 3632024: 3581%
Where Dr. Torosian's Medicare services took place, 2024
- In an office2,97375%
- In a facility1,01525%
Dr. Torosian compared with the California median for nephrologists, 2024
- Dr. Torosian
- California median
- Medicare services
- 3,988vs 1,0843.7 times
- Medicare patients
- 563vs 30783% above
- Part D claims
- 1,440vs 95551% above
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Torosian'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. Torosian?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Torosian and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karo Torosian treated 563 Medicare patients in 2024, average age 75
CMS counts 563 Medicare patients who saw Dr. Torosian in 2024. The largest group is 75 to 84, with 203 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 38% are also on Medicaid. Their average risk score is 3.81, 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. Torosian's median patient age at 72, with 43% women.
Dr. Torosian's Medicare patients by age, 2024
Dr. Torosian's Medicare patients by sex, 2024
- Women27348%
- Men29052%
Chronic conditions among Dr. Torosian's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes59%
- Ischemic heart disease51%
- Arthritis47%
- Heart failure47%
- Atrial fibrillation37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Torosian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karo Torosian wrote 1,683 Medicare Part D claims in 2024
In 2024, Dr. Torosian wrote 1,683 Medicare Part D claims for 266 patients. 79% of them were for generic drugs. CMS names the drug for 1,440 of them, across 34 drugs with 11 or more claims each, at $285,193 in total drug cost. In 2023, CMS named 866 claims across 25 drugs.
Dr. Torosian's Part D claims by kind of drug, 2024
- Generic1,326 claims79%
- Brand-name357 claims21%
Dr. Torosian'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. Torosian's Part D claims, 2024
- Antibiotics1%18 of 1,683 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: 8662024: 1,44066%
Drugs named by CMS: 34 in 2024, 25 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. Karo Torosian offers telehealth to Medicare patients
Dr. Torosian accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Torosian as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Karo Torosian received $2,045 in industry payments from 2017 to 2025
CMS Open Payments shows 96 general payments to Dr. Torosian from 20 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $283.
General payments to Dr. Torosian by program year, 2017 to 2025
General payments to Dr. Torosian by kind, 2017 to 2025
- Food and beverage$2,02799%
- Education$181%
Companies that paid Dr. Torosian 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. Karo Torosian graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Torosian graduated from WesternU College of Osteopathic Medicine of the Pacific in 2011.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Karo Torosian accepts plans from 11 insurance carriers
Dr. Torosian is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- +3 more carriersWith a free account
Plan types Dr. Torosian accepts, by number of carriers
- Medicare10
- PPO8
- HMO6
- POS4
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Karo Torosian'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Karo Torosian
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. Karo Torosian's NPI number?
Dr. Karo Torosian's NPI number is 1275822082. It was assigned on April 1, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Karo Torosian?
Dr. Karo Torosian is a nephrologist in San Marcos, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Karo Torosian practice?
Dr. Torosian practices at 960 W San Marcos Blvd, San Marcos, CA 92078. Dr. Torosian's primary practice is Carmel Mountain Dialysis in San Marcos, California. Dmand AI also links Dr. Torosian to 3 hospitals, 2 dialysis centers, 2 group practices and clinics and 1 medical group.
What is Dr. Karo Torosian's office phone number?
The practice phone on file for Dr. Torosian is (858) 538-1083.
What is Dr. Karo Torosian's medical license number?
Dr. Torosian's California license number on file is 20A12445.
Which hospitals is Dr. Karo Torosian affiliated with?
Dr. Torosian is affiliated with Scripps Memorial Hospital La Jolla. Dmand AI links Dr. Torosian to 3 more hospitals.
What medical group is Dr. Karo Torosian part of?
Dr. Torosian is linked to Emergency and Acute Care Medical Corporation. Dmand AI links Dr. Torosian to 1 more medical group.
Does Dr. Karo Torosian accept Medicare?
Yes. CMS data shows Dr. Torosian billed Medicare for 3,988 services in 2024, and Dr. Torosian accepts Medicare assignment.
Does Dr. Karo Torosian offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Torosian as offering telehealth services.
How many Medicare patients does Dr. Karo Torosian see?
CMS counts 563 Medicare patients who saw Dr. Torosian in 2024, with an average age of 75.
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Is Dr. Karo Torosian board certified?
Yes. Dr. Torosian is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Karo Torosian bill to Medicare?
In 2024, Dr. Torosian's most billed Medicare services were hospital inpatient care (99232), care management and other visits (99458) and care management and other visits (99457).
Where did Dr. Karo Torosian go to medical school?
Dr. Torosian graduated from WesternU College of Osteopathic Medicine of the Pacific in 2011.
What drugs does Dr. Karo Torosian prescribe most?
In 2024 Medicare Part D data, Dr. Torosian's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Farxiga.
Has Dr. Karo Torosian received payments from drug or device companies?
CMS Open Payments shows $2,045 in general payments to Dr. Torosian from 20 companies from 2017 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Karo Torosian been practicing?
Dr. Torosian graduated from medical school in 2011, 15 years ago.
What insurance does Dr. Karo Torosian accept?
Dr. Torosian is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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