JOHN GREZAFFI JR. MD
NPI 1659575173
Radiology - Diagnostic Radiology in Baton Rouge, LA

NPI Status: Active since June 11, 2007

Contact Information

7887 PICARDY AVE
BATON ROUGE, LA
ZIP 70809
Phone: (225) 763-4341

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  • Individual
  • Male
  • Years of Experience 21
  • Radiology
  • Diagnostic Radiology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About JOHN GREZAFFI

This page provides the complete NPI Profile along with additional information for John Grezaffi, a provider established in Baton Rouge, Louisiana with a medical specialization in Radiology, focusing in diagnostic radiology and more than 21 years of experience. He graduated from Louisiana State University School Of Medicine In New Orleans in 2005. The healthcare provider is registered in the NPI registry with number 1659575173 assigned on June 2007. The practitioner's primary taxonomy code is 2085R0202X with license number 204408 (LA). The provider is registered as an individual and his NPI record was last updated 9 years ago.

NPI
1659575173
Provider Name
JOHN GREZAFFI JR. MD
Gender
Male
Entity Type
Individual
Location Address
7887 PICARDY AVE BATON ROUGE, LA 70809
Location Phone
(225) 763-4341
Mailing Address
7887 PICARDY AVE BATON ROUGE, LA 70809
Medical School Name
LOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Graduation Year
2005
Is Sole Proprietor?
Yes
Enumeration Date
06-11-2007
Last Update Date
03-21-2017
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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.
204408
License State
LA
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:

  • Choice Bronze HSA (QualChoice) - POS
  • Complete Gold - PPO
  • Complete Gold + Vision + Adult Dental - PPO
  • Connected Silver - PPO
  • Connected Silver (QualChoice) - POS
  • Connected Silver (QualChoice) + Vision + Adult Dental - POS
  • Connected Silver (QualChoiceLife) - PPO
  • Connected Silver (QualChoiceLife) + Vision + Adult Dental - PPO
  • Connected Silver + Vision + Adult Dental - PPO
  • Elite Bronze - PPO
  • Elite Bronze + Vision + Adult Dental - PPO
  • Elite Gold (QualChoice) - POS
  • Elite Gold (QualChoice) + Vision + Adult Dental - POS
  • Elite Gold (QualChoiceLife) - PPO
  • Elite Gold (QualChoiceLife) + Vision + Adult Dental - PPO
  • Everyday Bronze - PPO
  • Everyday Bronze + Vision + Adult Dental - PPO
  • Standard Expanded Bronze - PPO
  • Standard Expanded Bronze (QualChoice) - POS
  • Standard Expanded Bronze + Vision + Adult Dental - PPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Choice Bronze HSA - HMO
  • Choice Bronze HSA + Vision + Adult Dental - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Standard Silver + Vision + Adult Dental - HMO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Blue Connect 80/60 $3200 with 2 $0 PCP Virtual Visits (L) - POS
  • Blue Connect 80/60 $3200 with 2 $0 PCP Virtual Visits (N) - POS
  • Blue Connect 80/60 $3200 with 2 $0 PCP Virtual Visits (S) - POS
  • Blue Connect Copay (PCP) 50/50 $7500 Standardized (H) HSA Eligible - POS
  • Blue Connect Copay (PCP) 50/50 $7500 Standardized (L) HSA Eligible - POS
  • Blue Connect Copay (PCP) 50/50 $7500 Standardized (N) HSA Eligible - POS
  • Blue Connect Copay (PCP) 50/50 $7500 Standardized (S) HSA Eligible - POS
  • Blue Connect Copay (PCP) 60/40 $6000 Standardized (L) - POS
  • Blue Connect Copay (PCP) 60/40 $6000 Standardized (N) - POS
  • Blue Connect Copay (PCP) 60/40 $6000 Standardized (S) - POS
  • Blue Connect Copay (PCP) 75/55 $2000 Standardized (H) - POS
  • Blue Connect Copay (PCP) 75/55 $2000 Standardized (L) - POS
  • Blue Connect Copay (PCP) 75/55 $2000 Standardized (N) - POS
  • Blue Connect Copay (PCP) 75/55 $2000 Standardized (S) - POS
  • Blue POS 60/40 $6500 with 2 $0 PCP Virtual Visits HSA Eligible - POS
  • Blue POS 80/60 $3200 with 2 $0 PCP Virtual Visits - POS
  • Blue POS 90/70 $9900 with 2 $0 PCP Virtual Visits HSA Eligible - POS
  • Blue POS Copay (PCP) 50/50 $7500 Standardized HSA Eligible - POS
  • Blue POS Copay (PCP) 60/40 $6000 Standardized - POS
  • Blue POS Copay (PCP) 75/55 $2000 Standardized - POS
  • Molina Gold Standard - HMO
  • Molina Silver Standard - HMO
  • Bronze Classic Standard - HMO
  • Bronze Elite + PCP Saver Plus - HMO
  • Bronze Simple Chronic Care CKM - HMO
  • Gold Classic Standard - HMO
  • Silver Classic Standard - HMO
  • Silver Simple - HMO
  • Silver Simple Chronic Care CKM - HMO
  • UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) - EPO
  • UHC Bronze Essential ($0 Virtual Urgent Care, No Referrals) - EPO
  • UHC Bronze Standard (No Referrals) - EPO
  • UHC Bronze Standard+ (Dental + Vision, No Referrals) - EPO
  • UHC Gold Advantage ($0 Virtual Urgent Care, $3 Tier 2 Rx, No Referrals) - EPO
  • UHC Gold Advantage+ ($0 Virtual Urgent Care, $3 Tier 2 Rx, Dental + Vision, No Referrals) - EPO
  • UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $3 Tier 2 Rx, No Referrals) - EPO
  • UHC Gold Standard (No Referrals) - EPO
  • UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) - EPO
  • UHC Silver Copay Focus + $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) - EPO
  • UHC Silver Standard (No Referrals) - EPO
  • UHC Silver Value ($0 Virtual Urgent Care, No Referrals) - EPO
  • UHC Silver Value + ($0 Virtual Urgent Care, Dental + Vision, No Referrals) - EPO

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

Medicare Participation & PECOS Enrollment Status

John Grezaffi 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.

John Grezaffi 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: 5496923229

    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: I20110722000232, I20171014000170

    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 abscess, blood, or cyst

Aspiration is a procedure where a needle is carefully inserted into an area of abnormal growth or swelling (like an abscess, blood clot, or cyst) to remove fluid. This helps in reducing pain, facilitating healing, and testing the fluid if needed.

This service was performed 23 times for 19 patients

Biopsy and aspiration of bone marrow sample for diagnosis

A bone marrow biopsy and aspiration is a procedure where a small amount of bone marrow is removed for testing. It involves inserting a needle into a bone, typically the hip, to collect a sample. It can help diagnose various diseases and monitor treatment effectiveness.

This service was performed 30 times for 29 patients

Core needle biopsy of lung or center cavity of chest (mediastinum), accessed through skin

A core needle biopsy of the lung or mediastinum is a procedure where a small sample of tissue is collected using a needle inserted through the skin. This helps in diagnosing lung conditions or diseases in the chest's central cavity. It's a safe and minimally invasive process.

This service was performed 15 times for 15 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 200 times for 195 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 12 times for 12 patients

Ct scan of abdomen and pelvis before and after contrast

A 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 13 times for 13 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 75 times for 70 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 53 times for 52 patients

Ct scan of blood vessels of abdomen and pelvis with contrast

A 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 29 times for 29 patients

Ct scan of blood vessels of chest with contrast

A 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 37 times for 36 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 55 times for 49 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 22 times for 21 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 19 times for 19 patients

Ct scan of upper spine without contrast

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

This service was performed 35 times for 35 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 12 times for 12 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 13 times for 13 patients

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

This service was performed 2,600 times for 31 patients

Needle biopsy of liver through skin

A needle biopsy of the liver through skin is a procedure where a small tissue sample from your liver is collected using a thin needle. This is done to diagnose liver diseases or conditions. It involves inserting the needle through your skin and into your liver.

This service was performed 19 times for 18 patients

Removal of spinal fluid with lower back spinal tap for diagnostic test using imaging guidance

A lower back spinal tap, guided by imaging, is a procedure to collect spinal fluid for testing. A needle is carefully inserted into the lower back to draw out fluid. This can help diagnose various conditions. It's performed under local anesthesia to minimize discomfort.

This service was performed 13 times for 12 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 82 times for 80 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 160 times for 140 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 22 times for 20 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 262 times for 230 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 74 times for 72 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 79 times for 76 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 19 times for 18 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $20.9 for a new patient copayment and $16.76 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 70809 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $83.6
  • Minimum New Patient Price $53.43
  • Maximum New Patient Price $164.73
  • Average New Patient Copayment $20.9
  • Minimum New Patient Copayment $13.35
  • Maximum New Patient Copayment $41.18

Established Patients Visit Costs *

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

  • Average Established Patient Price $67.06
  • Minimum Established Patient Price $16.64
  • Maximum Established Patient Price $133.62
  • Average Established Patient Copayment $16.76
  • Minimum Established Patient Copayment $4.16
  • Maximum Established Patient Copayment $33.4

* 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. John Grezaffi is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
NORTH OAKS MEDICAL CENTER15790 PAUL VEGA MD DRIVE
HAMMOND, LA 70403
(985) 345-2700Acute Care Hospitals
BATON ROUGE GENERAL MEDICAL CENTER8585 PICARDY AVE
BATON ROUGE, LA 70809
(225) 387-7767Acute Care Hospitals
SPRINGHILL MEDICAL CENTER2001 DOCTORS DRIVE
SPRINGHILL, LA 71075
(318) 539-1000Acute Care Hospitals
OCHSNER MEDICAL CENTER - BATON ROUGE17000 MEDICAL CENTER DR
BATON ROUGE, LA 70816
(225) 752-2470Acute Care Hospitals
BOLIVAR MEDICAL CENTER901 E SUNFLOWER RD
CLEVELAND, MS 38732
(662) 846-0061Acute 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 1659575173, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
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 5 → 10 → 1 5 → 10 → 1 5 → 10 → 1 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 + 0 + 9 + 1 + 0 + 7 + 1 + 0 + 1 + 1 + 4 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1659575173.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Physician Assistant
7887 PICARDY AVE
BATON ROUGE, LA 70809

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659575173, enumerated as an "individual" on June 11, 2007.

The provider is located at 7887 PICARDY AVE BATON ROUGE, LA 70809 and the phone number is (225) 763-4341.

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

The provider might be accepting Accepts: Ambetter from Arkansas Health & Wellness, Ambetter. Please consult your insurance carrier or call the provider to verify.

John Grezaffi is affiliated with: NORTH OAKS MEDICAL CENTER, BATON ROUGE GENERAL MEDICAL CENTER, SPRINGHILL MEDICAL CENTER, OCHSNER MEDICAL CENTER - BATON ROUGE and BOLIVAR MEDICAL CENTER.