DR. SANDRA G WARTSKI PSY.D.
NPI 1891820437
Psychologist - Family in Raleigh, NC

NPI Status: Active since February 23, 2007

Contact Information

1004 DRESSER CT
SUITE 103
RALEIGH, NC
ZIP 27609
Phone: (919) 876-5658
Fax: (919) 790-1521

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  • Individual
  • Female
  • Psychologist
  • Family
  • Opted-Out Medicare

About SANDRA WARTSKI

This page provides the complete NPI Profile along with additional information for Sandra Wartski, a provider established in Raleigh, North Carolina with a medical specialization in Psychologist, focusing in family . The healthcare provider is registered in the NPI registry with number 1891820437 assigned on February 2007. The practitioner's primary taxonomy code is 103TF0000X with license number 2007 (NC). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1891820437
Provider Name
DR. SANDRA G WARTSKI PSY.D.
Gender
Female
Entity Type
Individual
Location Address
1004 DRESSER CT SUITE 103 RALEIGH, NC 27609
Location Phone
(919) 876-5658
Location Fax
(919) 790-1521
Mailing Address
1004 DRESSER CT SUITE 103 RALEIGH, NC 27609
Mailing Phone
(919) 876-5658
Mailing Fax
(919) 790-1521
Is Sole Proprietor?
No
Enumeration Date
02-23-2007
Last Update Date
09-11-2025
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The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Sandra Wartski opted out of Medicare effective on 05-26-2021 until 05-26-2027. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.

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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

Psychologist Family

Taxonomy Code
103TF0000X
Type
Behavioral Health & Social Service Providers
License No.
2007
License State
NC
Taxonomy Description
A psychologist whose specialty is founded on principles of systems theory with the interpersonal system of the family the focus of assessment, intervention and research.

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)
1103T00000XBehavioral Health & Social Service Providers

Psychologist

2007 (NC)
2103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

2007 (NC)
3103TC2200XBehavioral Health & Social Service Providers

Psychologist
Clinical Child & Adolescent

2007 (NC)

Medicare Participation & PECOS Enrollment Status

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.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 05-26-2021

  • Opt-Out End Date: 05-26-2027

  • Eligible to Order and Refer? No

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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 1891820437, 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.

Pos 1
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
2
Unchanged
Pos 7
0
Doubled → 0
Pos 8
4
Unchanged
Pos 9
3
Doubled → 6
Check
7
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 9 → 18 → 9 8 → 16 → 7 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 6 + 2 + 0 + 4 + 6 + 24 = 63

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.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1891820437.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Psychologist (Clinical Child & Adolescent)
1004 DRESSER CT, SUITE 103
RALEIGH, NC 27609
Psychologist
1004 DRESSER CT, SUITE 103
RALEIGH, NC 27609
Social Worker (Clinical)
1004 DRESSER CT
RALEIGH, NC 27609
Student in an Organized Health Care Education/Training Program
1004 DRESSER CT, SUITE 103
RALEIGH, NC 27609
Podiatrist (Primary Podiatric Medicine)
1004 DRESSER CT
RALEIGH, NC 27609
Podiatrist (Primary Podiatric Medicine)
1004 DRESSER CT, SUITE 102
RALEIGH, NC 27609
Psychologist (Group Psychotherapy)
1004 DRESSER CT, SUITE 103
RALEIGH, NC 27609
Counselor (Mental Health)
1004 DRESSER CT, SUITE 103
RALEIGH, NC 27609
Psychologist (Group Psychotherapy)
1004 DRESSER CT, SUITE 103
RALEIGH, NC 27609

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891820437, enumerated as an "individual" on February 23, 2007.

The provider is located at 1004 DRESSER CT SUITE 103 RALEIGH, NC 27609 and the phone number is (919) 876-5658.

Psychologist with taxonomy code 103TF0000X and a focus in Family.