Doctor profile · Federal record

Dr. Stephen Lo, MD

Anesthesiology Physician · Pleasanton, CA

  • NPI 1558398719
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4487 Stoneridge Dr
Pleasanton, CA 945888326
(925) 600-1900
fax (925) 600-1908
Mailing address
210 N Tustin Ave
Santa Ana, CA 927053807

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
October 2, 2014
Specialty taxonomy
207L00000X — NUCC code
State license (1)
California #A65887
Medicaid
CA #00A658870

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558398719. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
293
Distinct HCPCS
2
Medicare allowed
$42,690
HCPCS Description Services Patients Avg allowed
00142 Anesthesia for lens surgery 280 213 $144
00103 Anesthesia for procedure on eyelid 13 12 $189

In context: peer comparison

Among 1 peers in this city , average services per provider: 146. This provider delivers 2.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Lo's medical specialty?
Dr. Stephen Lo practices Anesthesiology Physician in Pleasanton, CA.
Where does Dr. Stephen Lo practice?
Dr. Stephen Lo practices at 4487 Stoneridge Dr, Pleasanton, CA 945888326. Office phone: 9256001900.
What is Dr. Stephen Lo's NPI?
Dr. Stephen Lo's National Provider Identifier (NPI) is 1558398719, issued by NPPES.
What procedures does Dr. Stephen Lo commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for lens surgery (HCPCS 00142); Anesthesia for procedure on eyelid (HCPCS 00103). Source: CMS Medicare Physician & Other Practitioners file.