Doctor profile · Federal record

Dr. Diana Lo, M.D.

Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Student in an Organized Health Care Education/Training Program · Fremont, CA

  • NPI 1659696508
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3200 Kearney Street
Fremont, CA 945382299
(510) 490-1222
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
May 28, 2020
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207V00000X — NUCC code
State license (1)
California #A130970

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659696508. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
41
Distinct HCPCS
1
Medicare allowed
$4,381
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 41 15 $107

In context: peer comparison

Among 8 peers in Fremont Obstetrics & Gynecology Physician, average services per provider: 32. This provider delivers 1.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$8
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Organon LLC 1 $8.44

By nature of payment

Food and Beverage
$8

Frequently asked questions

Auto-generated from federal data
What is Dr. Diana Lo's medical specialty?
Dr. Diana Lo practices Obstetrics & Gynecology Physician in Fremont, CA.
Where does Dr. Diana Lo practice?
Dr. Diana Lo practices at 3200 Kearney Street, Fremont, CA 945382299. Office phone: 5104901222.
What is Dr. Diana Lo's NPI?
Dr. Diana Lo's National Provider Identifier (NPI) is 1659696508, issued by NPPES.
Does Dr. Diana Lo accept Medicare assignment?
Yes. Dr. Diana Lo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Lo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.