Karen Brown, M.D.
NPI 1285609412 · Internal Medicine Physician · Hamden, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Brown, M.D. is a Internal Medicine Physician provider in Hamden, CT (NPI 1285609412).
Provider details
- NPI number
- 1285609412
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- 033624 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
884 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 348 | $139 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 174 | $143 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 69 | $16 |
| Administration of Influenza Virus VaccineG0008 | 62 | $34 |
| Admn Sarscov2 Vacc 1 Dose90480 | 51 | $44 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 574 | 178 |
| Amlodipine Besylate | 286 | 81 |
| Levothyroxine Sodium | 193 | 58 |
| Losartan Potassium | 174 | 55 |
| Rosuvastatin Calcium | 129 | 45 |
| Hydrochlorothiazide | 128 | 38 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Karen Brown's NPI number?
- Karen Brown's National Provider Identifier (NPI) is 1285609412, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Brown's specialty?
- Karen Brown is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Brown located?
- Karen Brown's practice location on file with NPPES is 2440 Whitney Ave, Hamden, CT 06518-3222.
- What is Karen Brown's phone number?
- The practice phone number listed in the NPPES registry for Karen Brown is (203) 288-9650.
- Does Karen Brown accept Medicare?
- Karen Brown is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Brown's NPI active?
- Yes — Karen Brown's NPI (1285609412) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.