MARY-EILEEN HAHN M.S.
NPI 1669780458
Counselor - Professional in Frederick, MD
NPI Status: Active since September 15, 2010
Contact Information
10 N JEFFERSON ST
SUITE 403
FREDERICK, MD
ZIP 21701
Phone: (301) 620-8700
Fax: (301) 620-8710
- Individual
- Female
- Counselor
- Professional
- PECOS Enrolled
- Opted-Out Medicare
About MARY-EILEEN HAHN
This page provides the complete NPI Profile along with additional information for Mary-eileen Hahn, a provider established in Frederick, Maryland with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1669780458 assigned on September 2010. The practitioner's primary taxonomy code is 101YP2500X with license number LC3554 (MD). The provider is registered as an individual and her NPI record was last updated 16 years ago.
- NPI
- 1669780458
- Provider Name
- MARY-EILEEN HAHN M.S.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 10 N JEFFERSON ST SUITE 403 FREDERICK, MD 21701
- Location Phone
- (301) 620-8700
- Location Fax
- (301) 620-8710
- Mailing Address
- 10 N JEFFERSON ST SUITE 403 FREDERICK, MD 21701
- Mailing Phone
- (301) 620-8700
- Mailing Fax
- (301) 620-8710
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-15-2010
- Last Update Date
- 09-15-2010
- Code Navigator
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-eileen Hahn opted out of Medicare effective on 09-20-2024 until 09-20-2026. 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 but is permitted to order and refer services to other healthcare providers.
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
Counselor Professional
- Taxonomy Code
- 101YP2500X
- Type
- Behavioral Health & Social Service Providers
- License No.
- LC3554
- 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) |
|---|---|---|---|---|
| 1 | 101Y00000X | Behavioral Health & Social Service Providers | Counselor | LC3554 (MD) |
| 2 | 101YM0800X | Behavioral Health & Social Service Providers | Counselor | LC3554 (MD) |
Medicare Participation & PECOS Enrollment Status
Mary-eileen Hahn is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).
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.
Is the provider registered in PECOS? Yes
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 09-20-2024
Opt-Out End Date: 09-20-2026
Eligible to Order and Refer? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): No
Eligible to Order or Refer Power Mobility Devices: No
Reviews for MARY-EILEEN HAHN M.S.
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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 1669780458, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).
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 62 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 7 providers are registered at the same or a nearby location.
FREDERICK, MD 21701
FREDERICK, MD 21701
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1669780458, enumerated as an "individual" on September 15, 2010.
The provider is located at 10 N JEFFERSON ST SUITE 403 FREDERICK, MD 21701 and the phone number is (301) 620-8700.
Counselor with taxonomy code 101YP2500X and a focus in Professional.
