MARYLAND ENT CENTER, LLC
NPI 1689690513
Otolaryngology in Baltimore, MD
About Maryland Ent Center, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARYLAND ENT CENTER, LLC (NPI 1689690513), doing business as Towson Ear Nose & Throat, Llc, is a healthcare organization registered as an otolaryngology in Baltimore, Maryland and active in the NPI registry since July 2006. The organization lists Annette M Martyn, Practice Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Maryland Ent Center, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
11Medicare enrollment records show 11 clinicians reassign Medicare billing to Maryland Ent Center, LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 7 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 3
Clinicians, nearest first (11)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Maryland Ent Center, LLC's NPI number?
The NPI number for Maryland Ent Center, LLC is 1689690513. It was assigned to this organization in the NPPES registry on July 14, 2006. The provider was formerly known as Towson Ear Nose & Throat, LLC.
Where is Maryland Ent Center, LLC located?
Maryland Ent Center, LLC is located at 3333 N Calvert St Ste 360, Baltimore, MD 21218. The listed phone number is (410) 554-4455.
What is Maryland Ent Center, LLC's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Maryland Ent Center, LLC enrolled in Medicare?
Yes. Maryland Ent Center, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Maryland Ent Center, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 3 Medicare specialties reassign their Medicare billing to Maryland Ent Center, LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Otolaryngology (7), Nurse Practitioner (3) and Qualified Audiologist (1). Of these, 3 practice at this address and 7 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Maryland Ent Center, LLC was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 51 days 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.
# Maryland Ent Center, Llc · NPI 1689690513
Otolaryngology organization in Baltimore, Maryland. Organization record, active in the CMS NPPES registry since July 14, 2006.
## Identity
- **NPI:** 1689690513 (Entity type: Organization)
- **Enumerated:** July 14, 2006
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **Also known as:** Towson Ear Nose & Throat, LLC (Former Legal Business Name)
- **Organization subpart:** No
- **Authorized official:** Annette Martyn, PRACTICE ADMINISTRATOR
## Practice location
- **Address:** 3333 N CALVERT ST STE 360, Baltimore, MD 21218-2867
- **Phone:** (410) 554-4455 · **Fax:** (410) 554-2171
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 11 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Otolaryngology (7), Nurse Practitioner (3), Qualified Audiologist (1); 3 practice at this address and 7 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 9, 2026
- **Other identifiers:** Medicaid 563200500 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1689690513) · Data from the CMS NPPES public registry.