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DR. KOOSHA MORTAZAVI M.D.
NPI 1215966999
Internal Medicine - Nephrology in Oxnard, CA

Active since July 03, 2006PECOS EnrolledAccepts Medicare Assignment
1200 W GONZALES RD, SUITE 300, OXNARD, CA 93036(805) 278-9094(805) 278-8964 Get Directions Write a Review

NPPES record last updated: January 14, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Koosha Mortazavi M.d. NPPES

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

DR. KOOSHA MORTAZAVI M.D. (NPI 1215966999) is an individual nephrology provider in Oxnard, California, licensed in California (A91559) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1215966999
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. KOOSHA MORTAZAVICredential: M.D.
Location Address1200 W GONZALES RD, SUITE 300Oxnard, CA 93036-3072
Mailing Address1200 W Gonzales Rd, Suite 300Oxnard, CA 93036-3072 · (805) 278-9094 · Fax (805) 278-8964
Phone(805) 278-9094
Fax(805) 278-8964
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateJuly 3, 2006
Last NPPES UpdateJanuary 14, 2010
✔ NPI 1215966999 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in CA · A91559
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License A91559 (CA)
1200 W GONZALES RD, Oxnard, CA 93036
Open in Google Maps ↗

Other Identifiers 4

OtherZZZ34679ZCA · Blue Cross
MedicaidZZZ75566ZCA
Other110039977CA · Medicare Railroad
Medicare UPINI53610CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Koosha Mortazavi M.d. 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 ID3274545496
PECOS Enrollment IDI20060706000272
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.

Areas of Expertise CMS Part B claims 11

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.

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.
714 services248 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.
582 services196 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.
363 services50 patients
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.
168 services97 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.
122 services111 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.
83 services39 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93036 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
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
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.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
7 suppliers62 claims3,990 services$0.29 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers26 claims4,980 services$0.20 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers14 claims2,400 services$0.98 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
7 suppliers55 claims55 services$18.39 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
7 suppliers58 claims66 services$12.63 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. FRANK CHIEU M.D.
Internal Medicine (Nephrology)
1200 W GONZALES RD, SUITE 300
OXNARD, CA 93036
Ventura County (805) 278-9094
MARIAM MICHELLE GYULNAZARYAN PA-C
Physician Assistant
1200 W GONZALES RD
OXNARD, CA 93036
Ventura County (805) 983-0691
DR. ARON H.R. SWERDLIN M.D.
Internal Medicine (Nephrology)
1200 W GONZALES RD, SUITE 300
OXNARD, CA 93036
Ventura County (805) 278-9094
JEIMA PATACSIL WACHOWIAK NP, PHN, RN
Nurse Practitioner
1200 W GONZALES RD, SUITE 300
OXNARD, CA 93036
Ventura County (805) 983-0691
DR. STEVEN GLENN LEDESMA M.D.
Internal Medicine (Nephrology)
1200 W GONZALES RD, SUITE 300
OXNARD, CA 93036
Ventura County (805) 278-9094
DR. NICHOLAS EDWARD BEDNARSKI M.D.
Internal Medicine (Nephrology)
1200 W GONZALES RD, SUITE 300
OXNARD, CA 93036
Ventura County (805) 278-9094
DR. TANE LIU M.D.
Internal Medicine (Nephrology)
1200 W GONZALES RD, SUITE 300
OXNARD, CA 93036
Ventura County (805) 278-9094
KATHLEEN MOREAU SMITH F.N.P.
Nurse Practitioner
1200 W GONZALES RD, STE 300
OXNARD, CA 93036
Ventura County (805) 983-0691

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 Koosha Mortazavi's NPI number?

The NPI number for Koosha Mortazavi is 1215966999. It was assigned to this individual provider in the NPPES registry on July 3, 2006.

Where is Koosha Mortazavi located?

Koosha Mortazavi practices at 1200 W Gonzales Rd Suite 300, Oxnard, CA 93036. The listed phone number is (805) 278-9094.

What is Koosha Mortazavi's specialty?

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

Is Koosha Mortazavi enrolled in Medicare?

Yes. Koosha Mortazavi 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.

When was this NPI record last updated?

The NPPES record for Koosha Mortazavi was last updated on January 14, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.