Doctor profile · Federal record

Dr. Gian Nhan, M.D.

Anesthesiology Physician (CMS: Anesthesiology) · Los Angeles, CA

  • NPI 1982770657
  • Accepts Medicare
  • MIPS 91.9 / 100 · 2023
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1720 E Cesar E Chavez Ave
Los Angeles, CA 900332414
(323) 268-5000
fax (562) 407-2082
Additional location
1500 Duarte RD
Duarte, CA 910103012
(626) 256-4673
Mailing address
14120 Alondra Blvd, Suite C
Santa Fe Springs, CA 906705820

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
August 10, 2022
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
California #A64288
Medicaid
CA #00A642880

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1982770657. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
214
Distinct HCPCS
7
Medicare allowed
$34,415
HCPCS Description Services Patients Avg allowed
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 43 43 $151
36620 Insertion of artery tube for blood sampling or infusion through skin 43 43 $46
00811 Anesthesia for other procedure on large bowel using an endoscope 39 39 $150
00813 Anesthesia for procedure on small and large bowel using an endoscope 29 29 $179
00790 Anesthesia for other procedure on upper abdomen 25 25 $358
00520 Anesthesia for other closed procedure on chest 23 23 $180
01992 Anesthesia for nerve block and injection procedure, prone position 12 11 $153

In context: peer comparison

Among 169 peers in this city , average services per provider: 34. This provider delivers 6.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$101
Transactions
4
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 2 $50.92
Pacira Pharmaceuticals Incorporated 2 $50.52

By nature of payment

Food and Beverage
$101

Frequently asked questions

Auto-generated from federal data
What is Dr. Gian Nhan's medical specialty?
Dr. Gian Nhan practices Anesthesiology Physician in Los Angeles, CA.
Where does Dr. Gian Nhan practice?
Dr. Gian Nhan practices at 1720 E Cesar E Chavez Ave, Los Angeles, CA 900332414. Office phone: 3232685000.
What is Dr. Gian Nhan's NPI?
Dr. Gian Nhan's National Provider Identifier (NPI) is 1982770657, issued by NPPES.
Does Dr. Gian Nhan accept Medicare assignment?
Yes. Dr. Gian Nhan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gian Nhan commonly perform?
Top Medicare-reported procedures in 2023: 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); Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811). Source: CMS Medicare Physician & Other Practitioners file.