Doctor profile · Federal record

Dr. Tammy Mai, D.O.

Anesthesiology Physician (CMS: Anesthesiology) · Anesthesiology Physician · Portland, OR

  • NPI 1275821902
  • Accepts Medicare
  • 16 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
707 Sw Washington St, Suite 700
Portland, OR 972053536
(503) 299-9906
fax (503) 225-9002
Additional location
3600 Nw Samaritan Dr
Corvallis, OR 973305472
(541) 768-5111
Mailing address
Po Box 35147, #1801
Seattle, WA 981245147

Credentials & registration

NPPES · NUCC
NPI registered
July 2011 — 15 yrs on file
Profile last updated
December 8, 2025
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207L00000X — NUCC code
State licenses (2)
Oregon #DO173813 · Missouri #2011015606
Medicaid
OR #500693239

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275821902. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
79
Distinct HCPCS
6
Medicare allowed
$8,827
HCPCS Description Services Patients Avg allowed
01926 Anesthesia for x-ray on artery of brain, heart, or chest 19 19 $273
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 12 12 $140
36620 Insertion of artery tube for blood sampling or infusion through skin 12 12 $42
93312 Ultrasound of heart with probe in esophagus, with report 12 12 $102
93320 Ultrasound of heart blood flow, valves and chambers 12 12 $17
93325 Ultrasound of heart with color-depicted blood flow, rate and valve function 12 12 $3

In context: peer comparison

Among 123 peers in this city , average services per provider: 22. This provider delivers 3.6× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Tammy Mai's medical specialty?
Dr. Tammy Mai practices Anesthesiology Physician in Portland, OR.
Where does Dr. Tammy Mai practice?
Dr. Tammy Mai practices at 707 Sw Washington St, Portland, OR 972053536. Office phone: 5032999906.
What is Dr. Tammy Mai's NPI?
Dr. Tammy Mai's National Provider Identifier (NPI) is 1275821902, issued by NPPES.
Does Dr. Tammy Mai accept Medicare assignment?
Yes. Dr. Tammy Mai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tammy Mai commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for x-ray on artery of brain, heart, or chest (HCPCS 01926); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Insertion of artery tube for blood sampling or infusion through skin (HCPCS 36620). Source: CMS Medicare Physician & Other Practitioners file.