Doctor profile · Federal record

Dr. Mary Thomason, MD

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Tigard, OR

  • NPI 1427019322
  • Accepts Medicare
  • 27 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
12442 Sw Scholls Ferry RD, Suite 106
Tigard, OR 972233396
(503) 216-9200
Mailing address
Po Box 3158
Portland, OR 972083158

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
March 25, 2021
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Oregon #MD27320 · Wisconsin #42607
Medicaid (2)
WI #34245500 · OR #212980

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427019322. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
294
Distinct HCPCS
6
Medicare allowed
$24,295
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 162 76 $91
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 34 34 $49
99215 Established patient office or other outpatient visit, 40-54 minutes 32 17 $117
99213 Established patient office or other outpatient visit, 20-29 minutes 27 20 $82
G0008 Administration of influenza virus vaccine 20 20 $31
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 19 19 $71

In context: peer comparison

Among 6 peers in Tigard Internal Medicine Physician, average services per provider: 51. This provider delivers 5.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,350
Patients
632
Total drug cost
$41,061
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 378 112 $6,402
Levothyroxine Sodium Generic 318 82 $6,079
Lisinopril Generic 226 69 $1,681
Losartan Potassium Generic 150 43 $2,644
Omeprazole Generic 150 41 $4,028
Gabapentin Generic 147 40 $3,595
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 138 19 $3,422
Amlodipine Besylate Generic 126 38 $1,039
Trazodone Hcl Generic 125 31 $1,502
Metoprolol Succinate Generic 119 31 $2,576

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Thomason's medical specialty?
Dr. Mary Thomason practices Internal Medicine Physician in Tigard, OR.
Where does Dr. Mary Thomason practice?
Dr. Mary Thomason practices at 12442 Sw Scholls Ferry RD, Tigard, OR 972233396. Office phone: 5032169200.
What is Dr. Mary Thomason's NPI?
Dr. Mary Thomason's National Provider Identifier (NPI) is 1427019322, issued by NPPES.
Does Dr. Mary Thomason accept Medicare assignment?
Yes. Dr. Mary Thomason accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Thomason commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.