Marc Eisen, M.D.
NPI 1649345513 · Otology & Neurotology Physician · Farmington, CT
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Eisen, M.D. is a Otology & Neurotology Physician provider in Farmington, CT (NPI 1649345513).
Provider details
- NPI number
- 1649345513
- Entity type
- Individual
- Primary specialty
- Otology & Neurotology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 045054 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,263 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 217 | $100 |
| Evaluation and Testing for Balance With Recording92540 | 187 | $116 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 186 | $184 |
| Test for Abnormal Eye Movement Using a Rotating Chair92546 | 167 | $148 |
| Comprehensive Hearing and Speech Recognition Test92557 | 163 | $40 |
| Vemp Testing of Lower Branch of Inner Ear Nerve With Interpretation and Report92517 | 131 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nortriptyline Hcl | 123 | 31 |
| Diazepam | 64 | 35 |
| Ondansetron Hcl | 51 | 30 |
| Triamcinolone Acetonide | 29 | 14 |
| Neomycin/Polymyxin B/Hydrocortbrand: Neomycin-Polymyxin-Hc | 20 | 16 |
| Ciprofloxacin Hcl/Dexamethbrand: Ciprofloxacin-Dexamethasone | 19 | 12 |
| Clonazepam | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$134 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-23
- Last updated
- 2023-11-10
- Certified
- 2023-11-10
Frequently asked questions
- What is Marc Eisen's NPI number?
- Marc Eisen's National Provider Identifier (NPI) is 1649345513, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Eisen's specialty?
- Marc Eisen is listed in the NPPES registry with a primary specialty of Otology & Neurotology Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Eisen located?
- Marc Eisen's practice location on file with NPPES is 40 Stanford Dr, Farmington, CT 06032-2454.
- What is Marc Eisen's phone number?
- The practice phone number listed in the NPPES registry for Marc Eisen is (860) 640-4455.
- Does Marc Eisen accept Medicare?
- Marc Eisen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Eisen's NPI active?
- Yes — Marc Eisen's NPI (1649345513) is active in the NPPES registry as of the last update on 2023-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.