DR. KARO TOROSIAN D.O
NPI 1275822082
Internal Medicine - Nephrology in La Jolla, CA

Q: What is Karo Torosian's NPI number?

The NPI number for Karo Torosian is 1275822082. It was assigned to this individual provider in the NPPES registry on April 1, 2011.

Q: What is Karo Torosian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Karo Torosian was last updated on January 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 01, 2011PECOS EnrolledAccepts Medicare Assignment

9834 GENESEE AVE STE 312, LA JOLLA, CA 92037(619) 260-7220 Get Directions Write a Review

NPPES record last updated: January 16, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 16, 2026, Feb 2, 2021, Aug 31, 2017 and 1 more (4 updates tracked since 2017).

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About Dr. Karo Torosian D.o NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KARO TOROSIAN D.O (NPI 1275822082) is an individual nephrology provider in La Jolla, California, licensed in California (20A12445) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1275822082

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. KARO TOROSIANCredential: D.O

Location Address9834 GENESEE AVE STE 312La Jolla, CA 92037-1221

Mailing Address9373 Hazard Way Ste 200, Ste 200San Diego, CA 92123-1226 · (858) 810-0000 · Fax (858) 268-1911

Phone(619) 260-7220

Sole ProprietorYes

Medical School CMSOtherGraduated 2011

Enumeration DateApril 1, 2011

Last NPPES UpdateJanuary 16, 20264 updates tracked since enumeration

NPPES CertifiedJanuary 16, 2026

✔ NPI 1275822082 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in CA · 20A12445

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

9834 GENESEE AVE STE 312, La Jolla, CA 92037

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Other Identifiers 1

Other20A12445CA · Ca Medical License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karo Torosian D.o is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3476771114

PECOS Enrollment IDI20141028001734

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Karo Torosian reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Balboa Nephrology Medical Group, Inc.

6.6 mi

Nephrology

9373 HAZARD WAY STE 200
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
85 clinicians in this Medicare group

NPI 1316997505 (858) 810-8000

Emergency And Acute Care Medical Corporation

7.2 mi

Emergency Medicine

7901 FROST ST
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
1,437 clinicians in this Medicare group

NPI 1437103942 (858) 939-3400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

717 services175 patients

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458

This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.

717 services158 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

503 services172 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

464 services184 patients

Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454

This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.

315 services133 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

212 services32 patients

Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment 99453

Remote monitoring of physiologic parameters involves using special equipment to track vital signs like heart rate and blood pressure from a distance. The initial set-up includes installing the device and teaching the patient how to use it correctly for accurate readings.

129 services129 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

112 services100 patients

Dialysis procedure including 1 evaluation 90945

Dialysis is a treatment that filters and purifies the blood when your kidneys can't do their job. The procedure involves circulating your blood through a machine that removes waste products. An evaluation is done beforehand to assess your health and determine the best approach for your treatment.

75 services21 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

73 services41 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

71 services30 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

66 services66 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

38 services32 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92037 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karo Torosian's NPI number?

The NPI number for Karo Torosian is 1275822082. It was assigned to this individual provider in the NPPES registry on April 1, 2011.

Where is Karo Torosian located?

Karo Torosian practices at 9834 Genesee Ave Ste 312, La Jolla, CA 92037. The listed phone number is (619) 260-7220.

What is Karo Torosian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Karo Torosian enrolled in Medicare?

Yes. Karo Torosian is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karo Torosian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karo Torosian reassigns Medicare benefits to 2 organizations: Balboa Nephrology Medical Group, Inc. (San Diego, CA) and Emergency And Acute Care Medical Corporation (San Diego, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karo Torosian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Karo Torosian was last updated on January 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.