Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1639868722 Individual Practitioner Female Practitioner

Dr. Johni Brooke Lynn Armstrong , MD

Pediatrics • Memphis, TN

Professional Overview & Biography Verified Profile Summary

Dr. Johni Armstrong, MD is a registered healthcare professional specializing in Pediatrics in Memphis, TN. Practice services are available at 848 ADAMS AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

848 Adams Ave

Memphis, TN 381032816

Telephone 9072877337
Fax 9012875506
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Pediatrics in Memphis, TN

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 14.0 Yrs
State Avg: 24.1 Yrs
Regional Practice Density
200 Specialists

Practicing in Memphis, TN (1299 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-06-23
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

State License TN 74717

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

18 Associated Practitioners
Dr. Maya Emptage , DNP PNP-PC

Nurse Practitioner - Pediatrics

NPI 1043176522

DNPPNPPC

Dr. Sarah Lane , MD

Pediatrics - Developmental - Behavioral Pediatrics

NPI 1063971349

Doctor of Medicine (M.D.)

Dr. Jordan Ross , MD

Pediatrics - Pediatric Endocrinology

NPI 1174056501

Doctor of Medicine (M.D.)

NPI 1215622121

Doctor of Medicine (M.D.)

Dr. Ronald Espinal , MD

Pediatrics - Developmental - Behavioral Pediatrics

NPI 1215921226

Doctor of Medicine (M.D.)

Dr. Crystal Pourciau , MD

Dermatology - Pediatric Dermatology

NPI 1225230915

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events
📍
Updated Practice Location June 23, 2026

Registered at 848 ADAMS AVE, MEMPHIS, TN 381032816 (Tel: 9072877337)

📍
Updated Business Mailing Address June 23, 2026

Registered at 850 POPLAR AVE BLDG 2, MEMPHIS, TN 381054607 (Tel: 9012877337)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 23, 2026

Pediatrics (License #74717 in TN)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 21, 2025

Student in an Organized Health Care Education/Training Program

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 16, 2025

Pediatrics (License #74717 in TN)

NPI Profile Active May 03, 2023

NPI status registered as active in NPPES database

📍
Updated Practice Location May 03, 2023

Registered at 920 MADISON AVE STE 447, MEMPHIS, TN 381033438 (Tel: 9012876756)

📍
Updated Business Mailing Address May 03, 2023

Registered at 50 N DUNLAP ST # 20, MEMPHIS, TN 381032800

👤
Provider Name / Credentials Updated May 03, 2023

Recorded as JOHNI ARMSTRONG, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 03, 2023

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration May 03, 2023

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1639868722
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 03, 2023
Last Update: June 23, 2026
Sole Proprietor: No

Mailing Address

850 Poplar Ave Bldg 2

Memphis, TN 381054607

Phone: 9012877337

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.