DR. RUTH MARIA STEMBERGER PH.D.
NPI 1720115710
Psychologist - Clinical in Severna Park, MD

NPI Status: Active since February 27, 2007

Contact Information

692B RITCHIE HWY
SUITE 204
SEVERNA PARK, MD
ZIP 21146
Phone: (410) 315-9797

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  • Individual
  • Female
  • Psychologist
  • Clinical

About RUTH STEMBERGER

This page provides the complete NPI Profile along with additional information for Ruth Stemberger, a provider established in Severna Park, Maryland with a medical specialization in Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1720115710 assigned on February 2007. The practitioner's primary taxonomy code is 103TC0700X with license number 2990 (MD). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1720115710
Provider Name
DR. RUTH MARIA STEMBERGER PH.D.
Gender
Female
Entity Type
Individual
Location Address
692B RITCHIE HWY SUITE 204 SEVERNA PARK, MD 21146
Location Phone
(410) 315-9797
Mailing Address
692B RITCHIE HWY SUITE 204 SEVERNA PARK, MD 21146
Mailing Phone
(410) 315-9797
Is Sole Proprietor?
Yes
Enumeration Date
02-27-2007
Last Update Date
09-11-2025
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A clinical psychologist like Ruth Stemberger assesses, diagnoses, and treats mental, emotional, and behavioral disorders. Clinical psychologists help people deal with problems ranging from short-term personal issues to severe, chronic conditions. Clinical psychologists interview patients, give diagnostic tests, provide psychotherapy and design behavior modification programs to help patients.

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

Psychologist Clinical

Taxonomy Code
103TC0700X
Type
Behavioral Health & Social Service Providers
License No.
2990
License State
MD
Taxonomy Description
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

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

2990 (MD)
2103TB0200XBehavioral Health & Social Service Providers

Psychologist
Cognitive & Behavioral

2990 (MD)
3103TC2200XBehavioral Health & Social Service Providers

Psychologist
Clinical Child & Adolescent

2990 (MD)

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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 1720115710, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 2 + 1 + 1 + 0 + 7 + 2 + 24 = 50

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

The next multiple of ten after 50 is 50. The difference is the calculated check digit.

50 - 50 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1720115710.

Other Providers at the Same Location


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

Acupuncturist
692B RITCHIE HWY, SUITE 205
SEVERNA PARK, MD 21146

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720115710, enumerated as an "individual" on February 27, 2007.

The provider is located at 692B RITCHIE HWY SUITE 204 SEVERNA PARK, MD 21146 and the phone number is (410) 315-9797.

Psychologist with taxonomy code 103TC0700X and a focus in Clinical.