Alexander Dayton, MD
NPI 1225529340 · Emergency Medicine Physician · Norwich, CT
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Dayton, MD is a Emergency Medicine Physician provider in Norwich, CT (NPI 1225529340).
Provider details
- NPI number
- 1225529340
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- LP04257 (RI)
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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
410 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 256 | $179 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 57 | $124 |
| Ultrasound of Heart, Follow-Up93308 | 44 | $25 |
| Critical Care, First 30-74 Minutes99291 | 22 | $217 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 18 | $135 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefpodoxime Proxetil | 43 | 42 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 41 | 41 |
| Famotidine | 40 | 39 |
| Prednisone | 33 | 32 |
| Sucralfate | 32 | 28 |
| Ondansetronbrand: Ondansetron Odt | 31 | 31 |
| Doxycycline Hyclate | 29 | 29 |
Practice location
Mailing address
Additional practice locations (1)
- 593 Eddy StProvidence, RI 02903-4923Phone: (401) 444-4247Fax: (401) 444-6662
Registry dates
- Enumerated
- 2018-05-24
- Last updated
- 2023-02-19
- Certified
- 2023-02-19
Frequently asked questions
- What is Alexander Dayton's NPI number?
- Alexander Dayton's National Provider Identifier (NPI) is 1225529340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Dayton's specialty?
- Alexander Dayton is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Dayton located?
- Alexander Dayton's practice location on file with NPPES is 326 Washington St, Norwich, CT 06360-2740.
- What is Alexander Dayton's phone number?
- The practice phone number listed in the NPPES registry for Alexander Dayton is (860) 889-8331.
- Does Alexander Dayton accept Medicare?
- Alexander Dayton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Dayton's NPI active?
- Yes — Alexander Dayton's NPI (1225529340) is active in the NPPES registry as of the last update on 2023-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.