Justin Mcmillan, MD
NPI 1659900678 · Internal Medicine Physician · Little Rock, AR
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Mcmillan, MD is a Internal Medicine Physician provider in Little Rock, AR (NPI 1659900678).
Provider details
- NPI number
- 1659900678
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1 Childrens Way # 634Little Rock, AR 72202-3500Phone: (501) 686-5162
Registry dates
- Enumerated
- 2020-04-02
- Last updated
- 2023-06-08
- Certified
- 2023-06-08
Frequently asked questions
- What is Justin Mcmillan's NPI number?
- Justin Mcmillan's National Provider Identifier (NPI) is 1659900678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Mcmillan's specialty?
- Justin Mcmillan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Mcmillan located?
- Justin Mcmillan's practice location on file with NPPES is 4301 W Markham St # 634, Little Rock, AR 72205-7101.
- What is Justin Mcmillan's phone number?
- The practice phone number listed in the NPPES registry for Justin Mcmillan is (501) 686-5162.
- Does Justin Mcmillan accept Medicare?
- Justin Mcmillan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Mcmillan's NPI active?
- Yes — Justin Mcmillan's NPI (1659900678) is active in the NPPES registry as of the last update on 2023-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.