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MARY-EILEEN HAHN M.S.
NPI 1669780458
Counselor - Professional in Frederick, MD

Active since September 15, 2010Opted out of Medicare · through Sep 20, 2026
10 N JEFFERSON ST, SUITE 403, FREDERICK, MD 21701(301) 620-8700(301) 620-8710 Get Directions Write a Review

NPPES record last updated: September 15, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mary-eileen Hahn M.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY-EILEEN HAHN M.S. (NPI 1669780458) is an individual professional provider in Frederick, Maryland, licensed in Maryland (LC3554) and active in the NPI registry since September 2010. She has opted out of Medicare through September 20, 2026 and remains eligible to order and refer.

NPPES Registry Identity

NPI1669780458
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameMARY-EILEEN HAHNCredential: M.S.
Location Address10 N JEFFERSON ST, SUITE 403Frederick, MD 21701-3500
Mailing Address10 N Jefferson St, Suite 403Frederick, MD 21701-3500 · (301) 620-8700 · Fax (301) 620-8710
Phone(301) 620-8700
Fax(301) 620-8710
Sole ProprietorNo
Enumeration DateSeptember 15, 2010
✔ NPI 1669780458 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in MD · LC3554
Also ListedCounselorTaxonomy 101Y00000X · License LC3554 (MD)
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License LC3554 (MD)
10 N JEFFERSON ST, Frederick, MD 21701
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Mary-eileen Hahn M.s. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from September 20, 2024 through September 20, 2026.

Opt-Out Effective DateSeptember 20, 2024
Opt-Out In Effect ThroughSeptember 20, 2026Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HELPING HANDS COUNSELING SERVICES
Social Worker (Clinical)
10 N JEFFERSON ST
FREDERICK, MD 21701
Frederick County (301) 639-4180
TAMARA LYNN KOEPP LCSW-C
Social Worker (Clinical)
10 N JEFFERSON ST
FREDERICK, MD 21701
Frederick County (301) 514-4745
LAURA MICHIE SLP
Speech-Language Pathologist
10 N JEFFERSON ST, STE 304
FREDERICK, MD 21701
Frederick County (301) 668-1852
NEW HOPE FOUNDATION FOR THE UNDERSERVED, INC.
Psychologist (Clinical)
10 N JEFFERSON ST, SUITE 403
FREDERICK, MD 21701
Frederick County (301) 696-8880
MS. IWONA GERNER LGPC
Counselor (Professional)
10 N JEFFERSON ST
FREDERICK, MD 21701
Frederick County (301) 712-9015
MICHAEL C WAGNER PSY.D
Psychologist
10 N JEFFERSON ST, SUITE 403
FREDERICK, MD 21701
Frederick County (301) 620-8700
MRS. VANESSA DURRANT L.C.S.W
Social Worker (Clinical)
10 N JEFFERSON ST, SUITE 203
FREDERICK, MD 21701
Frederick County (301) 712-9015
ELIZABETH M ROBINSON M.AC., L.AC.
Acupuncturist
10 N JEFFERSON ST, STE. 203
FREDERICK, MD 21701
Frederick County (410) 294-2920

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary-eileen Hahn's NPI number?

The NPI number for Mary-eileen Hahn is 1669780458. It was assigned to this individual provider in the NPPES registry on September 15, 2010.

Where is Mary-eileen Hahn located?

Mary-eileen Hahn practices at 10 N Jefferson St Suite 403, Frederick, MD 21701. The listed phone number is (301) 620-8700.

What is Mary-eileen Hahn's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Mary-eileen Hahn enrolled in Medicare?

No. Mary-eileen Hahn has opted out of Medicare through September 20, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Mary-eileen Hahn was last updated on September 15, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.