Johni Armstrong, MD
NPI 1639868722 · Pediatrics Physician · Memphis, TN
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johni Armstrong, MD is a Pediatrics Physician provider in Memphis, TN (NPI 1639868722).
Provider details
- NPI number
- 1639868722
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
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
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2023-05-03
- Last updated
- 2025-07-21
- Certified
- 2025-07-21
Frequently asked questions
- What is Johni Armstrong's NPI number?
- Johni Armstrong's National Provider Identifier (NPI) is 1639868722, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johni Armstrong's specialty?
- Johni Armstrong is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Johni Armstrong located?
- Johni Armstrong's practice location on file with NPPES is 920 Madison Ave Ste 447, Memphis, TN 38103-3438.
- What is Johni Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Johni Armstrong is (901) 287-6756.
- Does Johni Armstrong accept Medicare?
- Johni Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johni Armstrong's NPI active?
- Yes — Johni Armstrong's NPI (1639868722) is active in the NPPES registry as of the last update on 2025-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.