DR. SARAH LAUREN CHAGNON MD
NPI 1770711269
Psychiatry & Neurology - Neurodevelopmental Disabilities in Norfolk, VA

NPI Status: Active since June 23, 2009

Contact Information

850 SOUTHAMPTON AVE
NORFOLK, VA
ZIP 23510
Phone: (757) 668-9920
Fax: (757) 668-9930

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Medicare Participation & PECOS Status
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Psychiatry & Neurology
Neurodevelopmental Disabilities
PECOS Enrolled

About SARAH CHAGNON

This page provides the complete NPI Profile along with additional information for Sarah Chagnon, a provider established in Norfolk, Virginia with a medical specialization in Psychiatry & Neurology, focusing in neurodevelopmental disabilities . The healthcare provider is registered in the NPI registry with number 1770711269 assigned on June 2009. The practitioner's primary taxonomy code is 2084P0005X with license number 0101257468 (VA). The provider is registered as an individual and her NPI record was last updated 8 years ago.

NPI: 1770711269
Provider Name: DR. SARAH LAUREN CHAGNON MD
Gender: Female
Entity Type: Individual
Location Address: 850 SOUTHAMPTON AVE NORFOLK, VA 23510
Location Phone: (757) 668-9920
Location Fax: (757) 668-9930
Mailing Address: 850 SOUTHAMPTON AVE NORFOLK, VA 23510
Mailing Phone: (757) 668-9920
Mailing Fax: (757) 668-9930
Is Sole Proprietor?: No
Enumeration Date: 06-23-2009
Last Update Date: 09-13-2018
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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: Psychiatry & Neurology Neurodevelopmental Disabilities
Taxonomy Code: 2084P0005X
Type: Allopathic & Osteopathic Physicians
License No.: 0101257468
License State: VA
Taxonomy Description: A neurologist who specializes in the treatment of individuals with developmental delays and learning disorders associated with cerebral palsy, spina bifida, autism, and other chronic neurologic conditions.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	208000000X	Allopathic & Osteopathic Physicians	Pediatrics	0101257468 (VA)
2	2084N0402X	Allopathic & Osteopathic Physicians	Psychiatry & Neurology Neurology with Special Qualifications in Child Neurology	0101257468 (VA)

Medicare Participation & PECOS Enrollment Status

Sarah Chagnon 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
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

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 1770711269, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

Check

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 7 → 14 → 5 1 → 2 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 1 + 4 + 1 + 2 + 2 + 1 + 2 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1770711269.