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 6 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

Reviews for WALTER L OLSEN MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1720051485
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2740052416
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 7 + 4 + 0 + 0 + 5 + 2 + 4 + 1 + 6 + 24 = 55
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 55 = 55

The NPI number 1720051485 is valid because the calculated check digit 5 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


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

NPI Name / Type Taxonomy Address
1043215502DR. ALFREDO B. TIU D.O.
Individual
Internal Medicine (Nephrology)200 W ARBOR DR OWEN CLINIC
SAN DIEGO, CA 92103
(619) 543-2415
1881691772DR. SIDNEY MERRITT MD
Individual
Anesthesiology200 W ARBOR DR
SAN DIEGO, CA 92103
(619) 543-5720
1689669863DR. NAVPARKASH SANDHU M.D.
Individual
Anesthesiology200 W ARBOR DR UCSD MED CENTER
SAN DIEGO, CA 92103
(619) 543-5742
1295721884 JOHN T BESTOSO M.D.
Individual
Internal Medicine (Nephrology)200 W ARBOR DR UCSD MEDICAL CENTER, SUITE 8781
SAN DIEGO, CA 92103
(619) 543-7310
1255301370DR. MICHAEL WARREN NIELSEN MD
Individual
Emergency Medicine200 W ARBOR DR
SAN DIEGO, CA 92103
(619) 543-6236
1356319891 PAUL JOSEPH GIRARD M.D.
Individual
Orthopaedic Surgery200 W ARBOR DR ORTHOPAEDIC SURGERY CLINIC, MAIL CODE 8670
SAN DIEGO, CA 92103
(619) 543-6312
1710944426DR. ROSALIND B DIETRICH MD
Individual
Radiology (Diagnostic Radiology)200 W ARBOR DR MC 8756
SAN DIEGO, CA 92103
(619) 543-6766
1922065606DR. DAVID BUTLER HOYT M.D.
Individual
Surgery200 W ARBOR DR
SAN DIEGO, CA 92103
(619) 543-7200
1679530844DR. SANFORD J SHATTIL M.D.
Individual
Internal Medicine200 W ARBOR DR UCSD MEDICAL CENTER
SAN DIEGO, CA 92103
(888) 309-8273
1750349866DR. SVETLANA KATSEV M.D.
Individual
Internal Medicine (Cardiovascular Disease)200 W ARBOR DR
SAN DIEGO, CA 92103
(619) 543-7230
1154389328MS. CHRISTINE ELIZABETH ROBINSON APRN, BC
Individual
Nurse Practitioner (Primary Care)200 W ARBOR DR
SAN DIEGO, CA 92103
(619) 294-3777
1831157122DR. ASHOK R PARAMESWARAN MD
Individual
Psychiatry & Neurology (Psychiatry)200 W ARBOR DR
SAN DIEGO, CA 92103
(619) 543-3995
1841258050 ROBERT TERKELTAUB M.D.
Individual
Internal Medicine200 W ARBOR DR
SAN DIEGO, CA 92103
(858) 657-6110
1477501450DR. KARL YODER HOSTETLER M.D.
Individual
Internal Medicine200 W ARBOR DR UCSD MEDICAL CENTER
SAN DIEGO, CA 92103
(858) 657-8440
1073561072 JARDENA GARNER PA
Individual
Physician Assistant200 W ARBOR DR UCSD MEDICAL CENTER - DEPARTMENT OF ORTHOPEDICS
SAN DIEGO, CA 92103
(619) 543-2539
1144278805DR. NIKHIL KANSAL M.D.
Individual
Surgery200 W ARBOR DR MC 8201
SAN DIEGO, CA 92103
(619) 543-1899
1366491474DR. HOWARD L TARAS MD
Individual
Pediatrics200 W ARBOR DR UCSD MEDICAL CENTER MC-8201
SAN DIEGO, CA 92103
(858) 657-8333
1982654927DR. TONY T YANG M.D., PH.D.
Individual
Psychiatry & Neurology (Psychiatry)200 W ARBOR DR UCSD MEDICAL CENTER
SAN DIEGO, CA 92103
(858) 966-5832
1861443681MS. CAROL A MATTHEWS FNP
Individual
Nurse Practitioner (Family)200 W ARBOR DR MC 8201
SAN DIEGO, CA 92103
(858) 822-4332
1396796124 HEATHER MARY PATTON M.D.
Individual
Internal Medicine200 W ARBOR DR MC 8413
SAN DIEGO, CA 92103
(619) 543-7544

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720051485, enumerated in the NPI registry 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

The provider's speciality is Radiology with taxonomy code 2085N0700X with a focus in Neuroradiology

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Durable Medical Equipment (DME) and Power Mobility Devices.

The most common procedures or services performed by this practitioner are: Ct scan head or brain without contrast, Ct scan of blood vessels of head with contrast, Ct scan of blood vessels of neck with contrast, Ct scan of face without contrast, Mri scan of brain before and after contrast, Mri scan of brain without contrast, Mri scan of lower spinal canal without contrast and Mri scan of upper spinal canal without contrast.

This NPI record was last updated on February 10, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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