Karey Breen, M.D.
NPI 1154582047 · Family Medicine Physician · North Charleston, SC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karey Breen, M.D. is a Family Medicine Physician provider in North Charleston, SC (NPI 1154582047).
Provider details
- NPI number
- 1154582047
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- ME110236 (FL)
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
17 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
636 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 | 170 | $116 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 66 | $13 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 53 | $9 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 50 | $15 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 44 | $7 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 72 | 65 |
| Atorvastatin Calcium | 50 | 26 |
| Amlodipine Besylate | 44 | 27 |
| Losartan Potassium | 33 | 19 |
| Azithromycin | 30 | 28 |
| Levothyroxine Sodium | 29 | 15 |
| Lisinopril |
Practice location
Mailing address
Additional practice locations (1)
- 354 Folly Rd Ste 5Charleston, SC 29412-2594Phone: (843) 225-2374Fax: (843) 459-1923
Registry dates
- Enumerated
- 2008-06-23
- Last updated
- 2022-05-03
- Certified
- 2022-05-03
Frequently asked questions
- What is Karey Breen's NPI number?
- Karey Breen's National Provider Identifier (NPI) is 1154582047, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karey Breen's specialty?
- Karey Breen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karey Breen located?
- Karey Breen's practice location on file with NPPES is 5880 Rivers Ave, North Charleston, SC 29406-6053.
- What is Karey Breen's phone number?
- The practice phone number listed in the NPPES registry for Karey Breen is (843) 225-2374.
- Does Karey Breen accept Medicare?
- Karey Breen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karey Breen's NPI active?
- Yes — Karey Breen's NPI (1154582047) is active in the NPPES registry as of the last update on 2022-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.