MARY FRANCES LAHOOD LCSW-C
NPI 1912571530
Social Worker in Frederick, MD
NPI Status: Active since May 18, 2021
Contact Information
1209A N EAST ST # 106
FREDERICK, MD
ZIP 21701
Phone: (240) 788-4812
- Individual
- Female
- Social Worker
- Opted-Out Medicare
About MARY FRANCES LAHOOD
This page provides the complete NPI Profile along with additional information for Mary Frances Lahood, a provider established in Frederick, Maryland with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1912571530 assigned on May 2021. The practitioner's primary taxonomy code is 104100000X with license number 23140 (MD). The provider is registered as an individual and her NPI record was last updated January 2026.
- NPI
- 1912571530
- Provider Name
- MARY FRANCES LAHOOD LCSW-C
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1209A N EAST ST # 106 FREDERICK, MD 21701
- Location Phone
- (240) 788-4812
- Mailing Address
- 1209A N EAST ST # 106 FREDERICK, MD 21701
- Mailing Phone
- (240) 788-4812
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-18-2021
- Last Update Date
- 01-28-2026
- Code Navigator
A social worker like Mary Frances Lahood helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.
The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Mary Frances Lahood opted out of Medicare effective on 10-01-2022 until 10-01-2026. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.
Location Map
Secondary Locations
- 1505 Cody Dr
Silver Spring, MD 20902
(301) 332-6934
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
Social Worker
- Taxonomy Code
- 104100000X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 23140
- License State
- MD
- Taxonomy Description
- A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Medicare Participation & PECOS Enrollment Status
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 10-01-2022
Opt-Out End Date: 10-01-2026
Eligible to Order and Refer? No
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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 1912571530, 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 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.
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 60 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1912571530, enumerated as an "individual" on May 18, 2021.
The provider is located at 1209A N EAST ST # 106 FREDERICK, MD 21701 and the phone number is (240) 788-4812.
Social Worker with taxonomy code 104100000X.
