Karen Jefferson, RPA
NPI 1265559637 · Medical Physician Assistant · Bronx, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Jefferson, RPA is a Medical Physician Assistant provider in Bronx, NY (NPI 1265559637).
Provider details
- NPI number
- 1265559637
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RPA
- Sex
- Female
- Sole proprietor
- No
- License
- 005314 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 136 | 24 |
| Lisinopril | 114 | 22 |
| Atorvastatin Calcium | 113 | 26 |
| Amlodipine Besylate | 92 | 19 |
| Alcohol Antiseptic Padsbrand: Alcohol Prep Pads | 77 | 13 |
| Metformin Hcl | 72 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-23
- Last updated
- 2008-05-13
Frequently asked questions
- What is Karen Jefferson's NPI number?
- Karen Jefferson's National Provider Identifier (NPI) is 1265559637, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Jefferson's specialty?
- Karen Jefferson is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Jefferson located?
- Karen Jefferson's practice location on file with NPPES is 368 E 149th St, Bronx, NY 10455-3901.
- What is Karen Jefferson's phone number?
- The practice phone number listed in the NPPES registry for Karen Jefferson is (718) 665-7500.
- Does Karen Jefferson accept Medicare?
- Karen Jefferson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Jefferson's NPI active?
- Yes — Karen Jefferson's NPI (1265559637) is active in the NPPES registry as of the last update on 2008-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.