Doctor profile · Federal record

Dr. Baron Harper, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (CMS: Cardiac Surgery) · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Marysville, CA

  • NPI 1588695902
  • Accepts Medicare
  • MIPS 92.1 / 100 · 2023
  • 37 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
401 I St, Suite A
Marysville, CA 959015626
(530) 743-5125
fax (530) 743-4528

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
June 19, 2014
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
208G00000X — NUCC code
State licenses (2)
California #G88253 · Illinois #036088122
Medicaid (3)
IL #036088122 · WI #32030700 · CA #1588695902

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588695902. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
395
Distinct HCPCS
9
Medicare allowed
$65,618
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 190 61 $79
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 42 42 $132
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 41 41 $177
99214 Established patient office or other outpatient visit, 30-39 minutes 27 23 $133
99213 Established patient office or other outpatient visit, 20-29 minutes 24 23 $94
99204 New patient office or other outpatient visit, 45-59 minutes 22 22 $172
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 22 14 $121
33533 Coronary artery bypass using artery graft, 1 graft 15 15 $1,690
33508 Harvest of vein using an endoscope 12 12 $15

In context: peer comparison

Among 1 peers in Marysville Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, average services per provider: 43. This provider delivers 9.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$286
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 1 $166.38
Abiomed 2 $85.39
Zoll Services LLC (A/K/A Zoll LifeCor Corp) 1 $18.48
Atricure, INC. 1 $15.35

By nature of payment

Food and Beverage
$286

Frequently asked questions

Auto-generated from federal data
What is Dr. Baron Harper's medical specialty?
Dr. Baron Harper practices Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Marysville, CA.
Where does Dr. Baron Harper practice?
Dr. Baron Harper practices at 401 I St, Marysville, CA 959015626. Office phone: 5307435125.
What is Dr. Baron Harper's NPI?
Dr. Baron Harper's National Provider Identifier (NPI) is 1588695902, issued by NPPES.
Does Dr. Baron Harper accept Medicare assignment?
Yes. Dr. Baron Harper accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Baron Harper commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.