DR. MARK SUSUMU SHIROISHI M.D.
NPI 1699949875
Radiology - Neuroradiology in Los Angeles, CA

Active since April 17, 2008PECOS EnrolledAccepts Medicare Assignment
1500 SAN PABLO ST FL 2, LOS ANGELES, CA 90033(323) 442-8541 Get Directions Write a Review

NPPES record last updated: November 27, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mark Susumu Shiroishi M.d. NPPES

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

DR. MARK SUSUMU SHIROISHI M.D. (NPI 1699949875) is an individual neuroradiology provider in Los Angeles, California, licensed in California (A84958) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2001).

NPPES Registry Identity

NPI1699949875
Entity TypeIndividualMale
Primary Taxonomy2085N0700X
Provider Legal NameDR. MARK SUSUMU SHIROISHICredential: M.D.
Location Address1500 SAN PABLO ST FL 2Los Angeles, CA 90033-5313
Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (323) 442-8541 · Fax (323) 442-8755
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2001
Enumeration DateApril 17, 2008
Last NPPES UpdateNovember 27, 2023
NPPES CertifiedOctober 9, 2020
NPI 1699949875 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · NeuroradiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085N0700X
License Licensed in CA · A84958
Definition
A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.
1500 SAN PABLO ST FL 2, Los Angeles, CA 90033

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. Mark Susumu Shiroishi 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 ID2769549427
PECOS Enrollment IDI20090324000551
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 9

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.

Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
88 services83 patients
Mri scan of brain before and after contrast 70553
An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.
80 services75 patients
Mri scan of brain without contrast 70551
An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.
27 services27 patients
Ct scan of blood vessels of head with contrast 70496
A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.
20 services20 patients
Ct scan of blood vessels of neck with contrast 70498
A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.
15 services15 patients
Mri scan of blood vessels of head without contrast 70544
An MRI scan of the head's blood vessels without contrast is a non-invasive imaging procedure. It uses a magnetic field and radio waves to create detailed images of the blood vessels in your head. This helps doctors diagnose conditions such as stroke, aneurysm, or other vascular disorders.
15 services15 patients

Other Providers at the Same Location NPPES 20

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

Radiology (Diagnostic Radiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Diagnostic Radiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Diagnostic Radiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Body Imaging)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Diagnostic Radiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Nurse Practitioner
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Diagnostic Radiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Body Imaging)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033

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 Mark Shiroishi's NPI number?

The NPI number for Mark Shiroishi is 1699949875. It was assigned to this individual provider in the NPPES registry on April 17, 2008.

Where is Mark Shiroishi located?

Mark Shiroishi practices at 1500 San Pablo St Fl 2, Los Angeles, CA 90033. The listed phone number is (323) 442-8541.

What is Mark Shiroishi's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Is Mark Shiroishi enrolled in Medicare?

Yes. Mark Shiroishi 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 Mark Shiroishi was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.