Larry Marcus, MD
NPI 1497743991 · Otolaryngology Physician · Norway, ME
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Larry Marcus, MD is a Otolaryngology Physician provider in Norway, ME (NPI 1497743991).
Provider details
- NPI number
- 1497743991
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 029258 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 106 | 53 |
| Pantoprazole Sodium | 54 | 24 |
| Neomycin/Polymyxin B/Hydrocortbrand: Neomycin-Polymyxin-Hc | 15 | 11 |
| Prednisone | 13 | 12 |
| Ipratropium Bromide | 12 | — |
| Mupirocin | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-10
- Last updated
- 2020-12-16
- Certified
- 2020-12-16
Frequently asked questions
- What is Larry Marcus's NPI number?
- Larry Marcus's National Provider Identifier (NPI) is 1497743991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Marcus's specialty?
- Larry Marcus is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Larry Marcus located?
- Larry Marcus's practice location on file with NPPES is 193 Main St, Norway, ME 04268-5645.
- What is Larry Marcus's phone number?
- The practice phone number listed in the NPPES registry for Larry Marcus is (207) 743-2835.
- Does Larry Marcus accept Medicare?
- Larry Marcus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Larry Marcus's NPI active?
- Yes — Larry Marcus's NPI (1497743991) is active in the NPPES registry as of the last update on 2020-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.