DARCY BRENNAN
NPI 1750967907
Speech-Language Pathologist in Washington, DC

Active since March 18, 2021
223 7TH ST NE, WASHINGTON, DC 20002(202) 546-5700 Get Directions Write a Review

NPPES record last updated: April 7, 2021. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 7, 2021, Mar 18, 2021 (2 updates tracked since 2021).

  • Individual
  • Female
  • Speech-Language Pathologist

About DARCY BRENNAN

This page provides the complete NPI Profile along with additional information for Darcy Brennan, a provider established in Washington, District Of Columbia with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1750967907 assigned on March 2021. The practitioner's primary taxonomy code is 235Z00000X with license number SLPCF000079 (DC). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1750967907
Provider Name
DARCY BRENNAN
Gender
Female
Entity Type
Individual
Location Address
223 7TH ST NE WASHINGTON, DC 20002
Location Phone
(202) 546-5700
Mailing Address
1723 NEW JERSEY AVE NW WASHINGTON, DC 20001
Mailing Phone
(603) 540-2464
Is Sole Proprietor?
No
Enumeration Date
03-18-2021
Last Update Date
04-07-2021
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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

Speech-Language Pathologist

Taxonomy Code
235Z00000X
Type
Speech, Language and Hearing Service Providers
License No.
SLPCF000079
License State
DC
Taxonomy Description
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Evaluation of speech sound production with evaluation of language comprehension and expression

This service involves assessing your ability to produce speech sounds and understand language. It also evaluates your ability to express yourself through language. It's a comprehensive review of your communication skills to identify any potential issues.

This service was performed 15 times for 14 patients

Evaluation of swallowing function

Evaluation of swallowing function is a medical procedure that assesses your ability to swallow food and drink safely. This involves studying the muscles and nerves involved in swallowing. It helps identify any issues that might lead to difficulties in eating or drinking.

This service was performed 14 times for 13 patients

Treatment of speech, language, voice, communication, and/or hearing processing disorder

This treatment involves working with a specialist to improve communication skills. It could involve exercises to enhance speech clarity, language understanding, voice volume, or hearing comprehension. The goal is to enhance your ability to express and understand others effectively.

This service was performed 248 times for 14 patients

Treatment of swallowing and feeding disorder

Treatment for swallowing and feeding disorders involves a team of specialists who will work together to improve your ability to eat and drink safely. This may include exercises to strengthen swallowing muscles, dietary changes, or special techniques to make swallowing easier.

This service was performed 123 times for 13 patients

Reviews for DARCY BRENNAN

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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 1750967907, 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
7
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
6
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
9
Unchanged
Pos 9
0
Doubled → 0
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 5 → 10 → 1 9 → 18 → 9 7 → 14 → 5 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 0 + 0 + 1 + 8 + 6 + 1 + 4 + 9 + 0 + 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 1750967907.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Nurse Anesthetist, Certified Registered
223 7TH ST NE
WASHINGTON, DC 20002
Nurse Practitioner (Family)
223 7TH ST NE
WASHINGTON, DC 20002
Dietitian, Registered
223 7TH ST NE
WASHINGTON, DC 20002
Speech-Language Pathologist
223 7TH ST NE
WASHINGTON, DC 20002
Long Term Care Hospital
223 7TH ST NE
WASHINGTON, DC 20002
Dietitian, Registered
223 7TH ST NE
WASHINGTON, DC 20002
Dietitian, Registered
223 7TH ST NE
WASHINGTON, DC 20002
Skilled Nursing Facility
223 7TH ST NE
WASHINGTON, DC 20002
Internal Medicine (Pulmonary Disease)
223 7TH ST NE
WASHINGTON, DC 20002
Nurse Anesthetist, Certified Registered
223 7TH ST NE
WASHINGTON, DC 20002
Internal Medicine
223 7TH ST NE
WASHINGTON, DC 20002
Long Term Care Hospital
223 7TH ST NE
WASHINGTON, DC 20002
Registered Nurse
223 7TH ST NE
WASHINGTON, DC 20002
Skilled Nursing Facility
223 7TH ST NE
WASHINGTON, DC 20002

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1750967907, enumerated as an "individual" on March 18, 2021.

The provider is located at 223 7TH ST NE WASHINGTON, DC 20002 and the phone number is (202) 546-5700.

Speech-Language Pathologist with taxonomy code 235Z00000X.