WALTER L OLSEN MD
NPI 1720051485
Radiology - Neuroradiology in San Diego, CA

NPI Status: Active since February 10, 2006

Contact Information

200 W ARBOR DR
SAN DIEGO, CA
ZIP 92103
Phone: (800) 926-8273

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  • Individual
  • Male
  • Radiology
  • Neuroradiology
  • PECOS Enrolled

About WALTER OLSEN

This page provides the complete NPI Profile along with additional information for Walter Olsen, a provider established in San Diego, California with a medical specialization in Radiology, focusing in neuroradiology . The healthcare provider is registered in the NPI registry with number 1720051485 assigned on February 2006. The practitioner's primary taxonomy code is 2085N0700X with license number G55091 (CA). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI
1720051485
Provider Name
WALTER L OLSEN MD
Gender
Male
Entity Type
Individual
Location Address
200 W ARBOR DR SAN DIEGO, CA 92103
Location Phone
(800) 926-8273
Mailing Address
PO BOX 232410 SAN DIEGO, CA 92193
Is Sole Proprietor?
No
Enumeration Date
02-10-2006
Last Update Date
09-19-2019
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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.
G55091
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
GR0083817MEDICAID (05)CA 
ZZZ75341ZMEDICAID (05)CA 
GR0083812MEDICAID (05)CA 
GR0083813MEDICAID (05)CA 
GR0083815MEDICAID (05)CA 
GR0083816MEDICAID (05)CA 
GR0083810MEDICAID (05)CA 
GR0083811MEDICAID (05)CA 
GR0083814MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Walter Olsen 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: Durable Medical Equipment (DME) 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: No

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

  • Eligible to Order or Refer a Home Health Agency (HHA): No

  • 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 107 times for 99 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 26 times for 25 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 27 times for 26 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 13 times for 12 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 63 times for 63 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 37 times for 37 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 28 times for 28 patients

Mri scan of upper spinal canal without contrast

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

This service was performed 14 times for 14 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 1720051485, 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
0
Doubled → 0
Pos 6
5
Unchanged
Pos 7
1
Doubled → 2
Pos 8
4
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 2 → 4 0 → 0 1 → 2 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 0 + 5 + 2 + 4 + 1 + 6 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1720051485.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Nephrology)
200 W ARBOR DR, OWEN CLINIC
SAN DIEGO, CA 92103
Anesthesiology
200 W ARBOR DR
SAN DIEGO, CA 92103
Anesthesiology
200 W ARBOR DR, UCSD MED CENTER
SAN DIEGO, CA 92103
Internal Medicine (Nephrology)
200 W ARBOR DR, UCSD MEDICAL CENTER, SUITE 8781
SAN DIEGO, CA 92103
Emergency Medicine
200 W ARBOR DR
SAN DIEGO, CA 92103
Orthopaedic Surgery
200 W ARBOR DR, ORTHOPAEDIC SURGERY CLINIC, MAIL CODE 8670
SAN DIEGO, CA 92103
Radiology (Diagnostic Radiology)
200 W ARBOR DR, MC 8756
SAN DIEGO, CA 92103
Internal Medicine (Cardiovascular Disease)
200 W ARBOR DR
SAN DIEGO, CA 92103
Nurse Practitioner (Primary Care)
200 W ARBOR DR
SAN DIEGO, CA 92103
Psychiatry & Neurology (Psychiatry)
200 W ARBOR DR
SAN DIEGO, CA 92103
Physician Assistant
200 W ARBOR DR, UCSD MEDICAL CENTER - DEPARTMENT OF ORTHOPEDICS
SAN DIEGO, CA 92103
Pediatrics
200 W ARBOR DR, UCSD MEDICAL CENTER MC-8201
SAN DIEGO, CA 92103
Nurse Practitioner (Family)
200 W ARBOR DR, MC 8201
SAN DIEGO, CA 92103
Otolaryngology
200 W ARBOR DR
SAN DIEGO, CA 92103
Internal Medicine
200 W ARBOR DR, MC 8485
SAN DIEGO, CA 92103
Anesthesiology
200 W ARBOR DR, UCSD MEDICAL CENTER MC 0801
SAN DIEGO, CA 92103
Pharmacist (Pharmacotherapy)
200 W ARBOR DR
SAN DIEGO, CA 92103
Advanced Practice Midwife
200 W ARBOR DR
SAN DIEGO, CA 92103
Radiology (Vascular & Interventional Radiology)
200 W ARBOR DR
SAN DIEGO, CA 92103
Pediatrics (Pediatric Rheumatology)
200 W ARBOR DR, MAIL CODE 0731
SAN DIEGO, CA 92103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720051485, enumerated as an "individual" on February 10, 2006.

The provider is located at 200 W ARBOR DR SAN DIEGO, CA 92103 and the phone number is (800) 926-8273.

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

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.