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

NPI Status: Active since April 17, 2008

Contact Information

1500 SAN PABLO ST FL 2
LOS ANGELES, CA
ZIP 90033
Phone: (323) 442-8541

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  • Individual
  • Male
  • Radiology
  • Neuroradiology
  • PECOS Enrolled

About MARK SHIROISHI

This page provides the complete NPI Profile along with additional information for Mark Shiroishi, a provider established in Los Angeles, California with a medical specialization in Radiology, focusing in neuroradiology . The healthcare provider is registered in the NPI registry with number 1699949875 assigned on April 2008. The practitioner's primary taxonomy code is 2085N0700X with license number A84958 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1699949875
Provider Name
DR. MARK SUSUMU SHIROISHI M.D.
Gender
Male
Entity Type
Individual
Location Address
1500 SAN PABLO ST FL 2 LOS ANGELES, CA 90033
Location Phone
(323) 442-8541
Mailing Address
PO BOX 31309 LOS ANGELES, CA 90031
Mailing Phone
(323) 442-8541
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
04-17-2008
Last Update Date
11-27-2023
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Radiology Neuroradiology

Taxonomy Code
2085N0700X
Type
Allopathic & Osteopathic Physicians
License No.
A84958
License State
CA
Taxonomy Description
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.

Medicare Participation & PECOS Enrollment Status

Mark Shiroishi is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Ct scan head or brain without contrast

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.

This service was performed 55 times for 52 patients

Ct scan of blood vessels of head with contrast

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.

This service was performed 19 times for 19 patients

Ct scan of blood vessels of neck with contrast

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.

This service was performed 14 times for 14 patients

Ct scan of face without contrast

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

This service was performed 11 times for 11 patients

Mri scan of brain before and after contrast

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.

This service was performed 45 times for 42 patients

Mri scan of brain without contrast

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.

This service was performed 25 times for 25 patients

Mri scan of lower spinal canal before and after contrast

An MRI scan of the lower spinal canal with contrast is a non-invasive imaging procedure. It uses magnetic fields to generate detailed images of your lower spine. A contrast agent is injected to enhance these images, helping doctors see issues more clearly.

This service was performed 12 times for 12 patients

Mri scan of lower spinal canal without contrast

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

This service was performed 22 times for 22 patients

Mri scan of middle spinal canal before and after contrast

An MRI scan of the middle spinal canal with contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your spine, both before and after a contrast dye is injected. The dye helps to highlight certain structures, providing a clearer picture for diagnosis.

This service was performed 11 times for 11 patients

X-ray of lower and sacral spine, 2-3 views

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

This service was performed 30 times for 30 patients

X-ray of lower and sacral spine, minimum of 4 views

An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.

This service was performed 23 times for 23 patients

X-ray of upper spine, 2-3 views

An X-ray of the upper spine, with 2-3 views, is a painless procedure that employs a small amount of radiation to capture images of your neck and upper back. It assists in diagnosing conditions like arthritis, fractures, or spinal deformities.

This service was performed 16 times for 15 patients

X-ray of upper spine, 4-5 views

An X-ray of the upper spine with 4-5 views is a non-invasive imaging test. It uses radiation to capture detailed images of the bones and structures in your neck and upper back. This procedure helps identify issues like fractures, infections, or deformities.

This service was performed 13 times for 13 patients

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1699949875, we treat the final digit (5) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 85. The final step is to find the difference between that total and the next multiple of ten (90 - 85 = 5).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
4
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 9 → 18 → 9 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 1 + 8 + 9 + 1 + 8 + 4 + 1 + 8 + 8 + 1 + 4 + 24 = 85

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 85 is 90. The difference is the calculated check digit.

90 - 85 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1699949875.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

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 (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 (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 (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 (Diagnostic Radiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Neuroradiology)
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 (Diagnostic Radiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Neuroradiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033
Radiology (Diagnostic Radiology)
1500 SAN PABLO ST FL 2
LOS ANGELES, CA 90033

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1699949875, enumerated as an "individual" on April 17, 2008.

The provider is located at 1500 SAN PABLO ST FL 2 LOS ANGELES, CA 90033 and the phone number is (323) 442-8541.

Radiology with taxonomy code 2085N0700X and a focus in Neuroradiology.