MICHELLE MARIE COURNOYER P.A.-C.
NPI 1568605426
Physician Assistant in Waltham, MA

NPI Status: Active since April 08, 2009

Contact Information

20 HOPE AVE
SUITE G06
WALTHAM, MA
ZIP 02453
Phone: (781) 894-2996
Fax: (781) 647-5996

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NPPES record last updated: April 8, 2009. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Female
  • Physician Assistant

About MICHELLE COURNOYER

This page provides the complete NPI Profile along with additional information for Michelle Cournoyer, a primary care provider established in Waltham, Massachusetts with a medical specialization in Physician Assistant. The healthcare provider is registered in the NPI registry with number 1568605426 assigned on April 2009. The practitioner's primary taxonomy code is 363A00000X with license number 449 (MA). The provider is registered as an individual and her NPI record was last updated 17 years ago.

NPI
1568605426
Provider Name
MICHELLE MARIE COURNOYER P.A.-C.
Gender
Female
Entity Type
Individual
Location Address
20 HOPE AVE SUITE G06 WALTHAM, MA 02453
Location Phone
(781) 894-2996
Location Fax
(781) 647-5996
Mailing Address
20 HOPE AVE SUITE G06 WALTHAM, MA 02453
Mailing Phone
(781) 894-2996
Mailing Fax
(781) 647-5996
Is Sole Proprietor?
No
Enumeration Date
04-08-2009
Last Update Date
04-08-2009
Code Navigator

A primary care provider (PCP) like Michelle Cournoyer sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

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

Physician Assistant

Taxonomy Code
363A00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
449
License State
MA
Taxonomy Description
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

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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 1568605426, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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
5
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
8
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
4
Unchanged
Pos 9
2
Doubled → 4
Check
6
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 6 → 12 → 3 6 → 12 → 3 5 → 10 → 1 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 2 + 8 + 1 + 2 + 0 + 1 + 0 + 4 + 4 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1568605426.

Other Providers at the Same Location


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

Internal Medicine (Cardiovascular Disease)
20 HOPE AVE, STE 206
WALTHAM, MA 02453
Ophthalmology
20 HOPE AVE, SUITE 212
WALTHAM, MA 02453
Internal Medicine (Gastroenterology)
20 HOPE AVE, STE G10
WALTHAM, MA 02453
Surgery
20 HOPE AVE, STE 207
WALTHAM, MA 02453
Psychiatry & Neurology (Psychiatry)
20 HOPE AVE, SUITE G05
WALTHAM, MA 02453
Midwife
20 HOPE AVE, STE 110
WALTHAM, MA 02453
Midwife
20 HOPE AVE, STE 110
WALTHAM, MA 02453
Psychiatry & Neurology (Neurology)
20 HOPE AVE, SUITE 203
WALTHAM, MA 02453
Internal Medicine (Pulmonary Disease)
20 HOPE AVE
WALTHAM, MA 02453
Nurse Practitioner (Family)
20 HOPE AVE, SUITE G10
WALTHAM, MA 02453
Dietitian, Registered
20 HOPE AVE, SUITE G03
WALTHAM, MA 02453
Psychiatry & Neurology (Neurology)
20 HOPE AVE, STE 103
WALITHAM, MA 02453
Internal Medicine
20 HOPE AVE, SUITE G10
WALTHAM, MA 02453
Obstetrics & Gynecology
20 HOPE AVE, #309
WALTHAM, MA 02453
Nurse Practitioner (Psychiatric/Mental Health)
20 HOPE AVE, SUITE G05
WALTHAM, MA 02453
Dentist (Pediatric Dentistry)
20 HOPE AVE, SUITE 306
WALTHAM, MA 02453
Pediatrics
20 HOPE AVE, SUITE G06
WALTHAM, MA 02453
Ophthalmology
20 HOPE AVE, SUITE 106
WALTHAM, MA 02453
Counselor (Mental Health)
20 HOPE AVE, G-05
WALTHAM, MA 02453
Dentist (General Practice)
20 HOPE AVE, #306
WALTHAM, MA 02453

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1568605426, enumerated as an "individual" on April 08, 2009.

The provider is located at 20 HOPE AVE SUITE G06 WALTHAM, MA 02453 and the phone number is (781) 894-2996.

Physician Assistant with taxonomy code 363A00000X.