STEWART B KARR MD
NPI 1477567022
Radiology - Diagnostic Radiology in Silver Spring, MD

NPI Status: Active since July 28, 2006

Contact Information

2121 MEDICAL PARK DRIVE
SUITE 3
SILVER SPRING, MD
ZIP 20902
Phone: (501) 681-3003
Fax: (301) 681-5868

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  • Individual
  • Male
  • Years of Experience 40
  • Radiology
  • Diagnostic Radiology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About STEWART KARR

This page provides the complete NPI Profile along with additional information for Stewart Karr, a provider established in Silver Spring, Maryland with a medical specialization in Radiology, focusing in diagnostic radiology and more than 40 years of experience. The healthcare provider is registered in the NPI registry with number 1477567022 assigned on July 2006. The practitioner's primary taxonomy code is 2085R0202X with license number D0035868 (MD). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1477567022
Provider Name
STEWART B KARR MD
Gender
Male
Entity Type
Individual
Location Address
2121 MEDICAL PARK DRIVE SUITE 3 SILVER SPRING, MD 20902
Location Phone
(501) 681-3003
Location Fax
(301) 681-5868
Mailing Address
4718 CARR DRIVE PER SE TECHNOLOGIES ELLIE CONLEY FREDERICKSBURG, VA 22408
Mailing Phone
(540) 891-5764
Mailing Fax
(301) 681-5868
Medical School Name
OTHER
Graduation Year
1986
Is Sole Proprietor?
No
Enumeration Date
07-28-2006
Last Update Date
05-07-2008
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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 Diagnostic Radiology

Taxonomy Code
2085R0202X
Type
Allopathic & Osteopathic Physicians
License No.
D0035868
License State
MD
Taxonomy Description
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

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.

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
80430026OTHER (01)DCBLUE SHIELD
FMX026MEDICARE PIN (08) 
60234801OTHER (01)MDBLUE SHIELD
671726D85MEDICARE PIN (08)DC 
F16431MEDICARE UPIN (02) 
152651100MEDICAID (05)MD 
008912C85MEDICARE PIN (08)DC 

Medicare Participation & PECOS Enrollment Status

Stewart Karr is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Stewart Karr 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

  • PECOS PAC ID: 1052217692

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20101116000583, I20151030000597

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • 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.

Aspiration of fluid from chest cavity using imaging guidance

This procedure, known as a thoracentesis, involves removing fluid from the space between the lungs and chest wall, called the pleural space. It's performed under imaging guidance to ensure precision. It can help diagnose conditions or relieve symptoms like shortness of breath.

This service was performed 26 times for 25 patients

Complete ultrasound scan behind abdominal cavity

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

This service was performed 23 times for 23 patients

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 171 times for 169 patients

Ct scan of abdomen and pelvis with contrast

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

This service was performed 58 times for 58 patients

Ct scan of abdomen and pelvis without contrast

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

This service was performed 48 times for 48 patients

Ct scan of chest with contrast

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

This service was performed 57 times for 57 patients

Ct scan of chest without contrast

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

This service was performed 53 times for 53 patients

Drainage of fluid from abdominal cavity using imaging guidance

This procedure involves removing excess fluid from your abdominal cavity, which can relieve discomfort. A specialist uses imaging technology to guide a thin needle into the right spot. The fluid is then drained out safely.

This service was performed 20 times for 16 patients

Fluoroscopic guidance for insertion or removal of central vein access device

Fluoroscopic guidance for central vein access device insertion or removal is a procedure where a special X-ray, called a fluoroscope, is used to help accurately place or remove a device in a central vein. This device aids in delivering medications or collecting blood samples.

This service was performed 35 times for 34 patients

Insertion of central venous tube with port (5 years or older)

A central venous tube with port is a small, flexible tube inserted into a large vein, usually in the chest. It allows for easy administration of medication, fluids, or blood products over a long period. A port is attached under the skin for easy access. It's safe for individuals aged 5 and above.

This service was performed 14 times for 14 patients

Insertion of tube for infusion with imaging guidance and review by radiologist, patient 5 years or older

This procedure involves placing a tube into a vein for medication or fluid delivery. Imaging guidance helps ensure correct placement, while a radiologist reviews the process for safety. It's suitable for patients aged 5 and above.

This service was performed 13 times for 13 patients

Insertion of tunneled central venous tube for infusion (5 years or older)

The insertion of a tunneled central venous tube is a procedure where a thin, flexible tube is placed into a large vein, usually in the neck or chest. This tube allows healthcare providers to give medications, fluids, or nutrients directly into your bloodstream over a longer period.

This service was performed 15 times for 15 patients

Limited ultrasound scan of abdomen

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

This service was performed 19 times for 19 patients

Review by radiologist of ct guidance for needle placement

This process involves a radiologist examining CT scan images to accurately guide a needle's placement within the body. This technique is often used for biopsies or treatments, ensuring precision and safety.

This service was performed 14 times for 14 patients

Ultrasonic guidance for blood vessel access

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

This service was performed 31 times for 31 patients

Ultrasonic guidance for needle placement

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

This service was performed 12 times for 12 patients

Ultrasound of both sides of head and neck blood flow

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

This service was performed 24 times for 24 patients

Ultrasound of leg arteries or artery grafts

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

This service was performed 29 times for 29 patients

Ultrasound study of arm or leg veins with compression and maneuvers

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

This service was performed 55 times for 53 patients

Ultrasound study of one arm or leg veins with compression and maneuvers

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

This service was performed 39 times for 39 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

This service was performed 60 times for 57 patients

X-ray of abdomen, 1 view

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

This service was performed 41 times for 39 patients

X-ray of abdomen, 2 views

An X-ray of the abdomen, 2 views, is a non-invasive imaging test. It uses a small amount of radiation to capture pictures of the structures inside your belly. The two views provide different angles, helping doctors see your organs clearly and detect any issues.

This service was performed 13 times for 13 patients

X-ray of chest, 1 view

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

This service was performed 1,014 times for 767 patients

X-ray of chest, 2 views

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

This service was performed 22 times for 22 patients

X-ray of hip, 2-3 views

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

This service was performed 26 times for 26 patients

X-ray of knee, 1-2 views

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

This service was performed 18 times for 17 patients

X-ray of pelvis, 1-2 views

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

This service was performed 15 times for 15 patients

X-ray of shoulder, minimum of 2 views

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

This service was performed 13 times for 13 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $25.07 for a new patient copayment and $20.16 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 20902 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $100.31
  • Minimum New Patient Price $65.18
  • Maximum New Patient Price $194.86
  • Average New Patient Copayment $25.07
  • Minimum New Patient Copayment $16.29
  • Maximum New Patient Copayment $48.71

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $80.66
  • Minimum Established Patient Price $21.4
  • Maximum Established Patient Price $158.88
  • Average Established Patient Copayment $20.16
  • Minimum Established Patient Copayment $5.35
  • Maximum Established Patient Copayment $39.72

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Stewart Karr is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
ADVENTIST HEALTHCARE WHITE OAK MEDICAL CENTER11890 HEALING WAY
SILVER SPRING, MD 20904
(240) 637-4000Acute Care Hospitals
JOHNS HOPKINS HOWARD COUNTY MEDICAL CENTER5755 CEDAR LANE
COLUMBIA, MD 21044
(410) 740-7890Acute Care Hospitals

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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 1477567022, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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
4
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
7
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
6
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
0
Unchanged
Pos 9
2
Doubled → 4
Check
2
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 7 → 14 → 5 5 → 10 → 1 7 → 14 → 5 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 4 + 7 + 1 + 0 + 6 + 1 + 4 + 0 + 4 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1477567022.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Radiology (Diagnostic Radiology)
2121 MEDICAL PARK DRIVE, SUITE 3
SILVER SPRING, MD 20902
Radiology (Diagnostic Radiology)
2121 MEDICAL PARK DRIVE, SUITE 3
SILVER SPRING, MD 20902
Radiology (Diagnostic Radiology)
2121 MEDICAL PARK DRIVE, SUITE 3
SILVER SPRING, MD 20902
Radiology (Diagnostic Radiology)
2121 MEDICAL PARK DRIVE, SUITE 3
SILVER SPRING, MD 20902
Radiology (Diagnostic Radiology)
2121 MEDICAL PARK DRIVE, SUITE 3
SILVER SPRING, MD 20902
Radiology (Diagnostic Radiology)
2121 MEDICAL PARK DRIVE, SUITE 3
SILVER SPRING, MD 20902
Radiology (Diagnostic Radiology)
2121 MEDICAL PARK DRIVE, SUITE 3
SILVER SPRING, MD 20902
Radiology (Diagnostic Radiology)
2121 MEDICAL PARK DRIVE, SUITES 1 & 2
SILVER SPRING, MD 20902

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1477567022, enumerated as an "individual" on July 28, 2006.

The provider is located at 2121 MEDICAL PARK DRIVE SUITE 3 SILVER SPRING, MD 20902 and the phone number is (501) 681-3003.

Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.

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

Stewart Karr is affiliated with: ADVENTIST HEALTHCARE WHITE OAK MEDICAL CENTER and JOHNS HOPKINS HOWARD COUNTY MEDICAL CENTER.