DR. ZACHARY EARL ARMSTRONG M.D.
NPI 1699917625
Emergency Medicine in Louisville, KY

Q: What is Zachary Armstrong's NPI number?

The NPI number for Zachary Armstrong is 1699917625. It was assigned to this individual provider in the NPPES registry on April 6, 2009.

Q: What is Zachary Armstrong's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Zachary Armstrong was last updated on June 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 06, 2009PECOS Enrolled

89.55/100

CMS Quality Rating

200 ABRAHAM FLEXNER WAY, LOUISVILLE, KY 40202(502) 852-5689 Get Directions Write a Review

NPPES record last updated: June 22, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 22, 2023, Dec 8, 2020 (2 updates tracked since 2020).

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About Dr. Zachary Earl Armstrong M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ZACHARY EARL ARMSTRONG M.D. (NPI 1699917625) is an individual emergency medicine provider in Louisville, Kentucky, licensed in Florida (ME155694) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699917625

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameDR. ZACHARY EARL ARMSTRONGCredential: M.D.

Location Address200 ABRAHAM FLEXNER WAYLouisville, KY 40202-2877

Mailing AddressPo Box 909Louisville, KY 40201-0909 · (502) 588-0330

Phone(502) 852-5689

Sole ProprietorNo

Enumeration DateApril 6, 2009

Last NPPES UpdateJune 22, 20232 updates tracked since enumeration

NPPES CertifiedJune 22, 2023

✔ NPI 1699917625 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

Licenses✔ Licensed in FL · ME155694✔ Licensed in KY · 45498

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

200 ABRAHAM FLEXNER WAY, Louisville, KY 40202

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Other Identifiers 1

Medicaid7100144990KY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Zachary Earl Armstrong M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Zachary Armstrong reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of Louisville Phyisicians, Inc.

Same address

Critical Care Medicine

200 ABRAHAM FLEXNER WAY
Louisville, KY 40202

Reassigned Medicare billing, Kentucky enrollment
Medicare enrollment name: University Of Louisville Physicians Inc
2,337 clinicians in this Medicare group

NPI 1912572504 (502) 587-4401

Southeastern Emergency Physicians LLC

109 mi

Emergency Medicine

989 MEDICAL PARK DR
Maysville, KY 41056

Reassigned Medicare billing, Kentucky enrollment
828 clinicians in this Medicare group

NPI 1356379382 (606) 759-5311

Cep America LLC

530 mi

Emergency Medicine

5736 CHUMUCKLA HWY
Pace, FL 32571

Reassigned Medicare billing, Florida enrollment
367 clinicians in this Medicare group

NPI 1871448001 (850) 746-2300

Emergency Medical Specialists Of Jacksonville

595 mi

Emergency Medicine

1 SHIRCLIFF WAY
Jacksonville, FL 32204

Reassigned Medicare billing, Florida enrollment
78 clinicians in this Medicare group

NPI 1295738367 (904) 308-7300

Governor Juan F. Luis Hospital & Medical Center

General Acute Care Hospital

#4007 ESTATE DIAMOND RUBY
Christiansted, St. Croix, VI 00821

Reassigned Medicare billing, U.S. Virgin Islands enrollment
331 clinicians in this Medicare group

NPI 1972503647 (340) 778-6311

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

244 services235 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

185 services178 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

64 services64 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

30 services30 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 40202 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$82.24 typical visit price

range $52.76 – $162.27

Typical copayment $20.56 (range $13.19 – $40.56)

Most-billed visit code 99203

Established Patient

$93.94 typical visit price

range $16.53 – $131.99

Typical copayment $23.48 (range $4.13 – $32.99)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

89.55/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

70.45

Improvement Activities

Cost

100

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MAR MILBURN

Pharmacist

200 ABRAHAM FLEXNER WAY, ADMINISTRATION
LOUISVILLE, KY 40202

Jefferson County (502) 210-4210

ERIC HO CHUN CHEUNG MD

Internal Medicine