ELIZABETH MARIE HAFER SLP
NPI 1164060984
Speech-Language Pathologist in Chevy Chase, MD
NPI Status: Active since December 11, 2019
Contact Information
3509 HUSTED DR
CHEVY CHASE, MD
ZIP 20815
Phone: (703) 887-1004
- Individual
- Female
- Speech-Language Pathologist
About ELIZABETH HAFER
This page provides the complete NPI Profile along with additional information for Elizabeth Hafer, a provider established in Chevy Chase, Maryland with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1164060984 assigned on December 2019. The practitioner's primary taxonomy code is 235Z00000X with license number 03057L (MD). The provider is registered as an individual and her NPI record was last updated February 2026.
- NPI
- 1164060984
- Provider Name
- ELIZABETH MARIE HAFER SLP
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 3509 HUSTED DR CHEVY CHASE, MD 20815
- Location Phone
- (703) 887-1004
- Mailing Address
- 3509 HUSTED DR CHEVY CHASE, MD 20815
- Mailing Phone
- (703) 887-1004
- Is Sole Proprietor?
- No
- Enumeration Date
- 12-11-2019
- Last Update Date
- 02-23-2026
- Code Navigator
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
Speech-Language Pathologist
- Taxonomy Code
- 235Z00000X
- Type
- Speech, Language and Hearing Service Providers
- License No.
- 03057L
- License State
- MD
- 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.
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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 1164060984, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 56 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1164060984, enumerated as an "individual" on December 11, 2019.
The provider is located at 3509 HUSTED DR CHEVY CHASE, MD 20815 and the phone number is (703) 887-1004.
Speech-Language Pathologist with taxonomy code 235Z00000X.
