KAREN GUY GRAJEWSKI MD
NPI 1518351477
Radiology - Diagnostic Radiology in Ann Arbor, MI
NPI Status: Active since March 27, 2015
Contact Information
1500 E MEDICAL CENTER DR
ANN ARBOR, MI
ZIP 48109
Phone: (734) 936-4000
NPPES record last updated: July 1, 2020. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Female
- Years of Experience 12
- Radiology
- Diagnostic Radiology
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About KAREN GRAJEWSKI
This page provides the complete NPI Profile along with additional information for Karen Grajewski, a provider established in Ann Arbor, Michigan with a medical specialization in Radiology, focusing in diagnostic radiology and more than 12 years of experience. She graduated from University Of Michigan Medical School in 2015. The healthcare provider is registered in the NPI registry with number 1518351477 assigned on March 2015. The practitioner's primary taxonomy code is 2085R0202X with license number 4301119185 (MI). The provider is registered as an individual and her NPI record was last updated 6 years ago.
- NPI
- 1518351477
- Provider Name
- KAREN GUY GRAJEWSKI MD
- Other Name
- KAREN GUY
- Other Name Type
- Former Name (1)
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1500 E MEDICAL CENTER DR ANN ARBOR, MI 48109
- Location Phone
- (734) 936-4000
- Mailing Address
- 3621 S STATE ST ANN ARBOR, MI 48108
- Mailing Phone
- (734) 647-5299
- Medical School Name
- UNIVERSITY OF MICHIGAN MEDICAL SCHOOL
- Graduation Year
- 2015
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-27-2015
- Last Update Date
- 07-01-2020
- Code Navigator
Location Map
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.
- 4301119185
- License State
- MI
- 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:
- Bronze 7500 $25 Generic Drugs - HMO
- Bronze 7500 $25 Generic Drugs + Adult Vision & Fitness - HMO
- Diabetes Gold 3000 $0 Chronic Care Drugs & Services - HMO
- Diabetes Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
- Diabetes Silver 5000 $0 Chronic Care Drugs & Services - HMO
- Diabetes Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
- Gold 2000 $15 Generic Drugs - HMO
- Gold 2000 $15 Generic Drugs + Adult Vision & Fitness - HMO
- HDHP Preventive Silver 5500 $0 Chronic Care Drugs - HMO
- Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services - HMO
- Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
- Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services - HMO
- Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
- HSA Eligible Bronze 6000 - HMO
- Low Premium Bronze 10600 $25 Generic Drugs - HMO
- Low Premium Bronze 10600 $25 Generic Drugs + Adult Vision & Fitness - HMO
- Low Premium Silver 6200 $3 Generic Drugs - HMO
- Low Premium Silver 6200 $3 Generic Drugs + Adult Vision & Fitness - HMO
- Platinum Zero $5 Generic Drugs - HMO
- Platinum Zero $5 Generic Drugs + Adult Vision & Fitness - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Karen Grajewski 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.
Karen Grajewski 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: 143537324
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: I20200728003219
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.
3d radiographic procedure
3d radiographic procedure
Ct scan of abdomen and pelvis before and after contrast
Ct scan of abdomen and pelvis before and after contrast
Ct scan of abdomen and pelvis with contrast
Ct scan of abdomen and pelvis with contrast
Ct scan of abdomen and pelvis without contrast
Ct scan of blood vessels of abdomen and pelvis with contrast
Ct scan of blood vessels of chest with contrast
Ct scan of chest with contrast
Ct scan of chest with contrast
Ct scan of chest without contrast
Ct scan of chest without contrast
Dxa bone density measurement of hip, pelvis, spine
Dxa bone density measurement of hip, pelvis, spine
Imaging for evaluation of swallowing function
Mri scan of abdomen before and after contrast
Mri scan of abdomen before and after contrast
Mri scan of pelvis before and after contrast
Nuclear medicine studies of heart muscle at rest and with stress and spect
Nuclear medicine study from skull base to mid-thigh with ct scan
Nuclear medicine study from skull base to mid-thigh with ct scan
Nuclear medicine study of bone and/or joint whole body
Nuclear medicine study of heart muscle at rest and with stress with single 2d image
Nuclear medicine study of liver and bile duct system
Nuclear medicine study of liver and bile duct system with use of drugs
Nuclear medicine study of lung ventilation and circulation
X-ray of abdomen, 1 view
X-ray of abdomen, 1 view
X-ray of chest, 1 view
X-ray of chest, 2 views
X-ray of chest, 2 views
X-ray of foot, minimum of 3 views
X-ray of hip, 2-3 views
X-ray of knee, 3 views
X-ray of pelvis, 1-2 views
X-ray of thigh bone, minimum 2 views
A 3D radiographic procedure is a non-invasive imaging test that helps doctors visualize the internal structures of your body in three dimensions. This advanced technology provides detailed images, aiding in accurate diagnosis and treatment planning. It involves exposure to minimal radiation.
This service was performed 34 times for 34 patientsA 3D radiographic procedure is a non-invasive imaging test that helps doctors visualize the internal structures of your body in three dimensions. This advanced technology provides detailed images, aiding in accurate diagnosis and treatment planning. It involves exposure to minimal radiation.
This service was performed 12 times for 12 patientsA CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.
This service was performed 29 times for 29 patientsA CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.
This service was performed 15 times for 15 patientsA 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 358 times for 354 patientsA 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 34 times for 34 patientsA 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 113 times for 112 patientsA CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.
This service was performed 32 times for 32 patientsA CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.
This service was performed 135 times for 133 patientsA 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 126 times for 123 patientsA 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 31 times for 31 patientsA 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 89 times for 88 patientsA 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 24 times for 23 patientsA DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.
This service was performed 102 times for 102 patientsA DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.
This service was performed 84 times for 84 patientsThis process, known as a swallowing study, uses imaging technology to view how food and liquid move from your mouth to your stomach. It helps identify any issues you may have swallowing, which can be crucial for determining the best treatment plan.
This service was performed 32 times for 30 patientsAn MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.
This service was performed 86 times for 85 patientsAn MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.
This service was performed 23 times for 23 patientsAn MRI scan of the pelvis before and after contrast is a non-invasive imaging technique. It uses magnetic fields and radio waves to capture detailed images of your lower abdomen. Contrast dye, safe for the body, improves image clarity. This helps detect abnormalities more accurately.
This service was performed 37 times for 37 patientsNuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.
This service was performed 22 times for 22 patientsA nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.
This service was performed 77 times for 77 patientsA nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.
This service was performed 22 times for 21 patientsA nuclear medicine study of bone and/or joint whole body involves injecting a small amount of radioactive material into your body. This material travels to your bones and emits energy. A special camera captures this energy, creating images of your bones to help identify any abnormalities.
This service was performed 58 times for 57 patientsThis is a test that examines your heart's function. It includes two parts: at rest and under stress. A safe radioactive substance is used to create images of your heart muscle. This helps identify areas of poor blood flow or damage.
This service was performed 21 times for 21 patientsA nuclear medicine study of the liver and bile duct system involves the use of a small amount of radioactive material to create detailed images. This helps doctors examine the liver's function and structure, and detect any abnormalities in the bile ducts.
This service was performed 14 times for 14 patientsA nuclear medicine study of the liver and bile duct system involves injecting a safe, radioactive substance into the body. This substance helps create images of these areas on a special camera. It's often combined with drug use to improve image clarity and aid in diagnosing various conditions.
This service was performed 11 times for 11 patientsA nuclear medicine lung ventilation and circulation study uses a safe radioactive material to create images of air and blood flow in your lungs. It helps identify issues like blood clots or lung diseases. You inhale or receive an injection of this material, and a special camera captures the images.
This service was performed 12 times for 12 patientsAn 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 59 times for 56 patientsAn 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 15 times for 15 patientsA 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 400 times for 385 patientsA 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 187 times for 185 patientsA 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 73 times for 72 patientsAn X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.
This service was performed 12 times for 12 patientsAn 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 16 times for 16 patientsAn X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.
This service was performed 16 times for 15 patientsAn 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 18 times for 18 patientsAn X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.
This service was performed 12 times for 12 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $22.69 for a new patient copayment and $18.09 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 48109 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $90.76
- Minimum New Patient Price $58.04
- Maximum New Patient Price $177.36
- Average New Patient Copayment $22.69
- Minimum New Patient Copayment $14.51
- Maximum New Patient Copayment $44.34
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $72.38
- Minimum Established Patient Price $18.32
- Maximum Established Patient Price $143.49
- Average Established Patient Copayment $18.09
- Minimum Established Patient Copayment $4.58
- Maximum Established Patient Copayment $35.87
* 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. Karen Grajewski is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| ST JOE MERCY HOSPITAL SYSTEM LIVONIA | 36475 FIVE MILE ROAD LIVONIA, MI 48154 | (734) 655-4800 | Acute Care Hospitals | |
| TRINITY HEALTH OAKLAND HOSPITAL | 44405 WOODWARD AVE PONTIAC, MI 48341 | (248) 858-3000 | Acute Care Hospitals | |
| SAINT JOSEPH MERCY LIVINGSTON HOSPITAL | 620 BYRON RD HOWELL, MI 48843 | (517) 545-6000 | Acute Care Hospitals | |
| TRINITY HEALTH ANN ARBOR HOSPITAL | 5301 E HURON RIVER DR ANN ARBOR, MI 48106 | (734) 712-3456 | Acute Care Hospitals | |
| CHELSEA HOSPITAL | 775 S MAIN ST CHELSEA, MI 48118 | (734) 475-3911 | Acute Care Hospitals |
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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 1518351477, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 63 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1518351477, enumerated as an "individual" on March 27, 2015.
The provider is located at 1500 E MEDICAL CENTER DR ANN ARBOR, MI 48109 and the phone number is (734) 936-4000.
Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.
The provider might be accepting Accepts: CareSource. Please consult your insurance carrier or call the provider to verify.
Karen Grajewski is affiliated with: ST JOE MERCY HOSPITAL SYSTEM LIVONIA, TRINITY HEALTH OAKLAND HOSPITAL, SAINT JOSEPH MERCY LIVINGSTON HOSPITAL, TRINITY HEALTH ANN ARBOR HOSPITAL and CHELSEA HOSPITAL.