DR. KATHRYN H. WATT M.D.
NPI 1215143623
Psychiatry & Neurology - Child & Adolescent Psychiatry in Baltimore, MD

NPI Status: Active since May 15, 2007

Contact Information

2 HAMILL RD
133 WEST QUADRANGLE
BALTIMORE, MD
ZIP 21210
Phone: (410) 323-5010

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  • Individual
  • Female
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry

About KATHRYN WATT

This page provides the complete NPI Profile along with additional information for Kathryn Watt, a provider established in Baltimore, Maryland with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry . The healthcare provider is registered in the NPI registry with number 1215143623 assigned on May 2007. The practitioner's primary taxonomy code is 2084P0804X with license number D39095 (MD). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1215143623
Provider Name
DR. KATHRYN H. WATT M.D.
Gender
Female
Entity Type
Individual
Location Address
2 HAMILL RD 133 WEST QUADRANGLE BALTIMORE, MD 21210
Location Phone
(410) 323-5010
Mailing Address
2 HAMILL RD 133 WEST QUADRANGLE BALTIMORE, MD 21210
Mailing Phone
(410) 323-5010
Is Sole Proprietor?
Yes
Enumeration Date
05-15-2007
Last Update Date
09-11-2025
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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 Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
D39095
License State
MD
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

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)
12084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

D39095 (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 1215143623, 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
2
Unchanged
Pos 3
1
Doubled → 2
Pos 4
5
Unchanged
Pos 5
1
Doubled → 2
Pos 6
4
Unchanged
Pos 7
3
Doubled → 6
Pos 8
6
Unchanged
Pos 9
2
Doubled → 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 1 → 2 1 → 2 3 → 6 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 2 + 5 + 2 + 4 + 6 + 6 + 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 1215143623.

Other Providers at the Same Location


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

Social Worker (Clinical)
2 HAMILL RD, SUITE 316
BALTIMORE, MD 21210
Dentist (Pediatric Dentistry)
2 HAMILL RD, SUITE 266 SOUTH
BALTIMORE, MD 21210
Optometrist (Pediatrics)
2 HAMILL RD, SUITE 345
BALTIMORE, MD 21210
Optometrist (Pediatrics)
2 HAMILL RD, SUITE 345
BALTIMORE, MD 21210
Family Medicine
2 HAMILL RD, SUITE 222
BALTIMORE, MD 21210
Psychiatry & Neurology (Neurology)
2 HAMILL RD, SUITE 225
BALTO, MD 21210
Psychiatry & Neurology (Psychiatry)
2 HAMILL RD, # 343
BALTIMORE, MD 21210
Social Worker (Clinical)
2 HAMILL RD, SUITE 127
BALTIMORE, MD 21210
Acupuncturist
2 HAMILL RD, STE 404
BALTIMORE, MD 21210
Dentist (Pediatric Dentistry)
2 HAMILL RD, SUITE 266 SOUTH
BALTIMORE, MD 21210
Psychiatry & Neurology (Pain Medicine)
2 HAMILL RD, # 354
BALTIMORE, MD 21210
Dentist (Pediatric Dentistry)
2 HAMILL RD, SUITE 266 SOUTH
BALTIMORE, MD 21210
Psychologist (Clinical)
2 HAMILL RD, SUITE 120
BALTIMORE, MD 21210
Dietitian, Registered
2 HAMILL RD, SUITE 322
BALTIMORE, MD 21210
Optometrist (Pediatrics)
2 HAMILL RD, SUITE 345
BALTIMORE, MD 21210
Optometrist (Pediatrics)
2 HAMILL RD, SUITE 345
BALTIMORE, MD 21210
Optometrist (Pediatrics)
2 HAMILL RD, SUITE 345
BALTIMORE, MD 21210
Family Medicine
2 HAMILL RD, SUITE 222
BALTIMORE, MD 21210
Occupational Therapist
2 HAMILL RD, SUITE 225
BALTIMORE, MD 21210
Nurse Practitioner (Pediatrics)
2 HAMILL RD, SUITE 405
BALTIMORE, MD 21210

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215143623, enumerated as an "individual" on May 15, 2007.

The provider is located at 2 HAMILL RD 133 WEST QUADRANGLE BALTIMORE, MD 21210 and the phone number is (410) 323-5010.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.