DR. PATRICK CYRIL JOYCE III M.D., J.D., M.P.H.
NPI 1619060100
Emergency Medicine - Medical Toxicology in Washington, DC

NPI Status: Active since October 02, 2006

Contact Information

50 IRVING STREET, N.W.
11H
WASHINGTON, DC
ZIP 20422
Phone: (202) 745-8254
Fax: (202) 745-8257

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  • Individual
  • Male
  • Emergency Medicine
  • Medical Toxicology

About PATRICK JOYCE

This page provides the complete NPI Profile along with additional information for Patrick Joyce, a provider established in Washington, District Of Columbia with a medical specialization in Emergency Medicine, focusing in medical toxicology . The healthcare provider is registered in the NPI registry with number 1619060100 assigned on October 2006. The practitioner's primary taxonomy code is 207PT0002X with license number D0038672 (MD). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1619060100
Provider Name
DR. PATRICK CYRIL JOYCE III M.D., J.D., M.P.H.
Gender
Male
Entity Type
Individual
Location Address
50 IRVING STREET, N.W. 11H WASHINGTON, DC 20422
Location Phone
(202) 745-8254
Location Fax
(202) 745-8257
Mailing Address
50 IRVING STREET, N.W. 11H WASHINGTON, DC 20422
Mailing Phone
(202) 745-8254
Mailing Fax
(202) 745-8257
Is Sole Proprietor?
No
Enumeration Date
10-02-2006
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

Emergency Medicine Medical Toxicology

Taxonomy Code
207PT0002X
Type
Allopathic & Osteopathic Physicians
License No.
D0038672
License State
MD
Taxonomy Description
Medical toxicologists are physicians who specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical toxicologists care for people in clinical, academic, governmental and public health settings, and provide poison control center leadership. Important areas of medical toxicology include acute drug poisoning, adverse drug events, drug abuse, addiction and withdrawal, chemicals and hazardous materials, terrorism preparedness, venomous bites and stings and environmental and workplace exposures.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

D0038672 (MD)
22083P0500XAllopathic & Osteopathic Physicians

Preventive Medicine
Preventive Medicine/Occupational Environmental Medicine

D0038672 (MD)
32083P0901XAllopathic & Osteopathic Physicians

Preventive Medicine
Public Health & General Preventive Medicine

D0038672 (MD)
42083X0100XAllopathic & Osteopathic Physicians

Preventive Medicine
Occupational Medicine

D0038672 (MD)
5209800000XAllopathic & Osteopathic Physicians

Legal Medicine

D0038672 (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 1619060100, 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
6
Unchanged
Pos 3
1
Doubled → 2
Pos 4
9
Unchanged
Pos 5
0
Doubled → 0
Pos 6
6
Unchanged
Pos 7
0
Doubled → 0
Pos 8
1
Unchanged
Pos 9
0
Doubled → 0
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 1 → 2 0 → 0 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 0 + 6 + 0 + 1 + 0 + 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 1619060100.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Internal Medicine
50 IRVING STREET, N.W.
WASHINGTON D.C., DC 20422
Internal Medicine (Pulmonary Disease)
50 IRVING STREET, N.W., PULMONARY SECTION, ROOM 4A-165, VETERANS AFFAIRS MEDICA
WASHINGTON, DC 20422
Psychologist (Clinical)
50 IRVING STREET, N.W.
WASHINGTON, DC 20422
Department of Veterans Affairs (VA) Pharmacy
50 IRVING STREET, N.W.
WASHINGTON, DC 20422

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619060100, enumerated as an "individual" on October 02, 2006.

The provider is located at 50 IRVING STREET, N.W. 11H WASHINGTON, DC 20422 and the phone number is (202) 745-8254.

Emergency Medicine with taxonomy code 207PT0002X and a focus in Medical Toxicology.