THERESA J RUDDY C.P.N.P., CRNP
NPI 1003189861
Nurse Practitioner - Acute Care in Baltimore, MD

NPI Status: Active since February 09, 2012

Contact Information

600 N WOLFE ST
BALTIMORE, MD
ZIP 21287
Phone: (410) 955-5260

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  • Individual
  • Female
  • Nurse Practitioner
  • Acute Care

About THERESA RUDDY

This page provides the complete NPI Profile along with additional information for Theresa Ruddy, a provider established in Baltimore, Maryland with a medical specialization in Nurse Practitioner, focusing in acute care . The healthcare provider is registered in the NPI registry with number 1003189861 assigned on February 2012. The practitioner's primary taxonomy code is 363LA2100X with license number R183328 (MD). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1003189861
Provider Name
THERESA J RUDDY C.P.N.P., CRNP
Gender
Female
Entity Type
Individual
Location Address
600 N WOLFE ST BALTIMORE, MD 21287
Location Phone
(410) 955-5260
Mailing Address
6201 GREENLEIGH AVE BALTIMORE, MD 21220
Mailing Phone
(410) 933-6423
Is Sole Proprietor?
No
Enumeration Date
02-09-2012
Last Update Date
07-02-2025
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A nurse practitioner (NP) like Theresa Ruddy is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, 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

Nurse Practitioner Acute Care

Taxonomy Code
363LA2100X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
R183328
License State
MD

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)
1163W00000XNursing Service Providers

Registered Nurse

R183328 (MD)
2163W00000XNursing Service Providers

Registered Nurse

RN1008855 (DC)

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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 1003189861, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
0
Unchanged
Pos 3
0
Doubled → 0
Pos 4
3
Unchanged
Pos 5
1
Doubled → 2
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
1
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 0 → 0 1 → 2 9 → 18 → 9 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 2 + 8 + 1 + 8 + 8 + 1 + 2 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1003189861.

Other Providers at the Same Location


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

Nurse Practitioner
600 N WOLFE ST, WEINBERG BUILDING ROOM 1123
BALTIMORE, MD 21287
Nurse Anesthetist, Certified Registered
600 N WOLFE ST, BLALOCK 1415
BALTIMORE, MD 21287
Radiology (Diagnostic Radiology)
600 N WOLFE ST
BALTIMORE, MD 21287
Nurse Practitioner (Acute Care)
600 N WOLFE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
600 N WOLFE ST
BALTIMORE, MD 21287
Pharmacist (Pharmacotherapy)
600 N WOLFE ST
BALTIMORE, MD 21287
Psychiatry & Neurology (Neurology)
600 N WOLFE ST
BALTIMORE, MD 21287
Emergency Medicine
600 N WOLFE ST
BALTIMORE, MD 21287
Obstetrics & Gynecology
600 N WOLFE ST
BALTIMORE, MD 21287
Physician Assistant
600 N WOLFE ST
BALTIMORE, MD 21287
Psychiatry & Neurology (Psychiatry)
600 N WOLFE ST
BALTIMORE, MD 21287
Emergency Medicine
600 N WOLFE ST
BALTIMORE, MD 21287
Internal Medicine (Cardiovascular Disease)
600 N WOLFE ST
BALTIMORE, MD 21287
Ophthalmology
600 N WOLFE ST
BALTIMORE, MD 21287
Internal Medicine
600 N WOLFE ST
BALTIMORE, MD 21287
Internal Medicine (Medical Oncology)
600 N WOLFE ST
BALTIMORE, MD 21287
Internal Medicine (Cardiovascular Disease)
600 N WOLFE ST
BALTIMORE, MD 21287
Pediatrics (Pediatric Gastroenterology)
600 N WOLFE ST
BALTIMORE, MD 21287
Surgery
600 N WOLFE ST
BALTIMORE, MD 21287
Anesthesiology
600 N WOLFE ST
BALTIMORE, MD 21287

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1003189861, enumerated as an "individual" on February 09, 2012.

The provider is located at 600 N WOLFE ST BALTIMORE, MD 21287 and the phone number is (410) 955-5260.

Nurse Practitioner with taxonomy code 363LA2100X and a focus in Acute Care.