Jacob Leffert, MD
NPI 1689171712 · Internal Medicine Physician · Little Rock, AR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jacob Leffert, MD is a Internal Medicine Physician provider in Little Rock, AR (NPI 1689171712).
Provider details
- NPI number
- 1689171712
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- E-14327 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-06
- Last updated
- 2021-07-30
- Certified
- 2021-07-30
Frequently asked questions
- What is Jacob Leffert's NPI number?
- Jacob Leffert's National Provider Identifier (NPI) is 1689171712, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jacob Leffert's specialty?
- Jacob Leffert is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jacob Leffert located?
- Jacob Leffert's practice location on file with NPPES is 4301 W Markham St # 508, Little Rock, AR 72205-7101.
- What is Jacob Leffert's phone number?
- The practice phone number listed in the NPPES registry for Jacob Leffert is (501) 686-8530.
- Does Jacob Leffert accept Medicare?
- Jacob Leffert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jacob Leffert's NPI active?
- Yes — Jacob Leffert's NPI (1689171712) is active in the NPPES registry as of the last update on 2021-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.