Doctor profile · Federal record

Dr. Larisa Zeltser, D.O.

Emergency Medicine Physician (CMS: Emergency Medicine) · Santa Ana, CA

  • NPI 1780622720
  • Accepts Medicare
  • 23 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1001 N Tustin Ave, Emergency Dept.
Santa Ana, CA 927053502
(714) 953-3500
Mailing address
4551 Glencoe Ave, Suite 260
Marina del Rey, CA 902926385

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
October 21, 2013
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #2)A8916

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780622720. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,024
Distinct HCPCS
10
Medicare allowed
$79,265
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 349 295 $98
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 120 114 $50
99214 Established patient office or other outpatient visit, 30-39 minutes 115 113 $138
99203 New patient office or other outpatient visit, 30-44 minutes 97 97 $122
87804 Detection test by immunoassay with direct visual observation for influenza virus 73 40 $16
81003 Automated urinalysis test 64 62 $2
71046 X-ray of chest, 2 views 45 45 $27
99204 New patient office or other outpatient visit, 45-59 minutes 35 35 $176
99212 Established patient office or other outpatient visit, 10-19 minutes 28 25 $62
81002 Urinalysis, manual test 27 27 $3

In context: peer comparison

Among 5 peers in this city , average services per provider: 74. This provider delivers 14× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$19
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Medline Industries LP 1 $19.25

By nature of payment

Food and Beverage
$19

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
361
Patients
346
Total drug cost
$4,561
Drug Type Claims Patients Total cost
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 50 42 $1,604
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 47 45 $471
Prednisone Generic 42 40 $63
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 37 37 $396
Doxycycline Hyclate Generic 30 29 $349
Cephalexin Generic 26 26 $83
Azithromycin Generic 23 23 $94
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 21 21 $103
Gentamicin Sulfate Generic 17 17 $673
Moxifloxacin (Moxifloxacin Hcl) Brand 15 15 $433

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Larisa Zeltser's medical specialty?
Dr. Larisa Zeltser practices Emergency Medicine Physician in Santa Ana, CA.
Where does Dr. Larisa Zeltser practice?
Dr. Larisa Zeltser practices at 1001 N Tustin Ave, Santa Ana, CA 927053502. Office phone: 7149533500.
What is Dr. Larisa Zeltser's NPI?
Dr. Larisa Zeltser's National Provider Identifier (NPI) is 1780622720, issued by NPPES.
Does Dr. Larisa Zeltser accept Medicare assignment?
Yes. Dr. Larisa Zeltser accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Larisa Zeltser commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen (HCPCS 87635); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.