Doctor profile · Federal record

Dr. Ryun Harper, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Lynwood, CA

  • NPI 1417904400
  • Accepts Medicare
  • MIPS 83.4 / 100 · 2023
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3630 East Imperial Hwy
Lynwood, CA 902622678
(310) 900-8900
Mailing address
Po Box 2705-605
Huntington Beach, CA 92647

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
December 8, 2009
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #A83398
Medicaid
CA #00A833980

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417904400. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
629
Distinct HCPCS
4
Medicare allowed
$111,532
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 427 409 $183
99284 Emergency department visit with moderate level of medical decision making 105 102 $126
99291 Critical care, first 30-74 minutes 86 84 $225
99283 Emergency department visit with low level of medical decision making 11 11 $75

In context: peer comparison

Among 10 peers in Lynwood Emergency Medicine Physician, average services per provider: 104. This provider delivers 6.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$14
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 1 $13.56

By nature of payment

Food and Beverage
$14

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
60
Patients
58
Total drug cost
$235
Drug Type Claims Patients Total cost
Cephalexin Generic 40 39 $203
Tramadol Hcl Generic 20 19 $32

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ryun Harper's medical specialty?
Dr. Ryun Harper practices Emergency Medicine Physician in Lynwood, CA.
Where does Dr. Ryun Harper practice?
Dr. Ryun Harper practices at 3630 East Imperial Hwy, Lynwood, CA 902622678. Office phone: 3109008900.
What is Dr. Ryun Harper's NPI?
Dr. Ryun Harper's National Provider Identifier (NPI) is 1417904400, issued by NPPES.
Does Dr. Ryun Harper accept Medicare assignment?
Yes. Dr. Ryun Harper accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ryun Harper commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.