Doctor profile · Federal record

Dr. Marissa Lachaga, PA-S

Physician Assistant · Hermiston, OR

  • NPI 1396397659
  • Accepts Medicare
  • 6 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
589 Nw 11Th St
Hermiston, OR 978386600
(541) 567-1717
fax (541) 564-5170
Additional location
220 W 7200 S Ste A
Midvale, UT 840471043
(801) 566-5494
fax (801) 561-9647
Additional location
2452 E Horizon Dr
Eagle Mountain, UT 840056295
(801) 819-5575
Mailing address
Po Box 190
Toppenish, WA 989480190

Credentials & registration

NPPES · NUCC
NPI registered
July 2019 — 7 yrs on file
Profile last updated
September 18, 2022
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Utah #8438012-1206

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396397659. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
11
Distinct HCPCS
1
Medicare allowed
$449
HCPCS Description Services Patients Avg allowed
87428 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 11 11 $41

In context: peer comparison

Among 2 peers in Hermiston Physician Assistant, average services per provider: 19. This provider delivers 0.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
487
Patients
109
Total drug cost
$6,641
Drug Type Claims Patients Total cost
Lisinopril Generic 92 21 $1,008
Atorvastatin Calcium Generic 61 23 $855
Amlodipine Besylate Generic 58 17 $569
Hydrochlorothiazide Generic 48 12 $204
Gabapentin Generic 34 12 $628
Metformin Hcl Generic 34 12 $285
Levothyroxine Sodium Generic 25 12 $406
Losartan Potassium Generic 22 0 $330
Famotidine Generic 21 0 $160
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 17 0 $564

Frequently asked questions

Auto-generated from federal data
What is Dr. Marissa Lachaga's medical specialty?
Dr. Marissa Lachaga practices Physician Assistant in Hermiston, OR.
Where does Dr. Marissa Lachaga practice?
Dr. Marissa Lachaga practices at 589 Nw 11Th St, Hermiston, OR 978386600. Office phone: 5415671717.
What is Dr. Marissa Lachaga's NPI?
Dr. Marissa Lachaga's National Provider Identifier (NPI) is 1396397659, issued by NPPES.
Does Dr. Marissa Lachaga accept Medicare assignment?
Yes. Dr. Marissa Lachaga accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marissa Lachaga commonly perform?
Top Medicare-reported procedures in 2023: Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (HCPCS 87428). Source: CMS Medicare Physician & Other Practitioners file.