Katherine Flanagan, MD
NPI 1407968639 · Internal Medicine Physician · Norwich, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Flanagan, MD is a Internal Medicine Physician provider in Norwich, CT (NPI 1407968639).
Provider details
- NPI number
- 1407968639
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 1389477 (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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
622 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 275 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 141 | $119 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 94 | $82 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 47 | $133 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 43 | $115 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 36 | 21 |
| Atorvastatin Calcium | 32 | 17 |
| Furosemide | 22 | 15 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 20 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 18 | 18 |
| Metoprolol Succinate | 17 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-01
- Last updated
- 2017-05-16
Frequently asked questions
- What is Katherine Flanagan's NPI number?
- Katherine Flanagan's National Provider Identifier (NPI) is 1407968639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Flanagan's specialty?
- Katherine Flanagan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Flanagan located?
- Katherine Flanagan's practice location on file with NPPES is 326 Washington St, Norwich, CT 06360.
- What is Katherine Flanagan's phone number?
- The practice phone number listed in the NPPES registry for Katherine Flanagan is (860) 889-8331.
- Does Katherine Flanagan accept Medicare?
- Katherine Flanagan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Flanagan's NPI active?
- Yes — Katherine Flanagan's NPI (1407968639) is active in the NPPES registry as of the last update on 2017-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.