Maryland Ent Center, LLC
NPI 1689690513 · Otolaryngology Physician · Baltimore, MD
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maryland Ent Center, LLC is a Otolaryngology Physician organization in Baltimore, MD (NPI 1689690513).
Provider details
- NPI number
- 1689690513
- Entity type
- Organization
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Annette Martyn, Practice Administrator(847) 888-9000
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Former legal business name
- Towson Ear Nose & Throat, LLC
Registry dates
- Enumerated
- 2006-07-14
- Last updated
- 2024-07-16
- Certified
- 2024-07-16
Frequently asked questions
- What is Maryland Ent Center, LLC's NPI number?
- Maryland Ent Center, LLC's National Provider Identifier (NPI) is 1689690513, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Maryland Ent Center, LLC?
- Maryland Ent Center, LLC is classified in the NPPES registry as Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Maryland Ent Center, LLC located?
- Maryland Ent Center, LLC's practice location on file with NPPES is 3333 N Calvert St Ste 360, Baltimore, MD 21218-2867.
- What is Maryland Ent Center, LLC's phone number?
- The practice phone number listed in the NPPES registry for Maryland Ent Center, LLC is (410) 554-4455.
- Does Maryland Ent Center, LLC accept Medicare?
- Maryland Ent Center, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Maryland Ent Center, LLC?
- The authorized official listed on Maryland Ent Center, LLC's NPPES record is Annette Martyn, Practice Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Maryland Ent Center, LLC's NPI active?
- Yes — Maryland Ent Center, LLC's NPI (1689690513) is active in the NPPES registry as of the last update on 2024-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.