Doctor profile · Federal record

Dr. Theresa Lo, M.D.

Anesthesiology Physician (CMS: Anesthesiology) · Student in an Organized Health Care Education/Training Program · Menlo Park, CA

  • NPI 1598055337
  • Accepts Medicare
  • 15 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1422 El Camino Real
Menlo Park, CA 940254110
(650) 903-9500
fax (650) 903-9900

Credentials & registration

NPPES · NUCC
NPI registered
April 2011 — 15 yrs on file
Profile last updated
April 23, 2016
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
California #A123351

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598055337. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
53
Distinct HCPCS
2
Medicare allowed
$11,726
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 42 29 $236
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 11 11 $165

In context: peer comparison

Among 10 peers in Menlo Park Anesthesiology Physician, average services per provider: 29. This provider delivers 1.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Theresa Lo's medical specialty?
Dr. Theresa Lo practices Anesthesiology Physician in Menlo Park, CA.
Where does Dr. Theresa Lo practice?
Dr. Theresa Lo practices at 1422 El Camino Real, Menlo Park, CA 940254110. Office phone: 6509039500.
What is Dr. Theresa Lo's NPI?
Dr. Theresa Lo's National Provider Identifier (NPI) is 1598055337, issued by NPPES.
Does Dr. Theresa Lo accept Medicare assignment?
Yes. Dr. Theresa Lo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Theresa Lo commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731). Source: CMS Medicare Physician & Other Practitioners file.