Doctor profile · Federal record

Dr. David Oh, M.D.

Rheumatology Physician (CMS: Internal Medicine) · Torrance, CA

  • NPI 1366549255
  • Accepts Medicare
  • 43 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
21350 Hawthorne Blvd Ste 260
Torrance, CA 905035645
(310) 543-2977
fax (310) 543-3147

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1983 — 43 yrs since
Specialty taxonomy
207RR0500X — NUCC code
State license (1)
California #A044047

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366549255. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,337
Distinct HCPCS
10
Medicare allowed
$172,829
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 965 270 $94
36415 Insertion of needle into vein for collection of blood sample 491 262 $8
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 386 40 $89
99214 Established patient office or other outpatient visit, 30-39 minutes 128 100 $113
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 103 103 $140
G0008 Administration of influenza virus vaccine 93 93 $29
90662 Influenza vaccine split virus, preservative free 85 85 $72
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 28 27 $16
99212 Established patient office or other outpatient visit, 10-19 minutes 25 17 $54
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 22 19 $167

In context: peer comparison

Among 6 peers in this city , average services per provider: 451. This provider delivers 5.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$111
Transactions
5
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 3 $61.67
ABBVIE INC. 2 $49.25

By nature of payment

Food and Beverage
$111

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
7,291
Patients
1,790
Total drug cost
$808,793
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 1,567 392 $25,868
Amlodipine Besylate Generic 1,129 286 $13,749
Losartan Potassium Generic 682 172 $12,433
Metformin Hcl Generic 493 132 $6,577
Levothyroxine Sodium Generic 424 98 $8,386
Januvia (Sitagliptin Phosphate) Brand 370 54 $301,291
Simvastatin Generic 361 93 $5,045
Omeprazole Generic 319 106 $6,701
Gabapentin Generic 300 70 $6,182
Tamsulosin Hcl Generic 284 77 $7,155

Frequently asked questions

Auto-generated from federal data
What is Dr. David Oh's medical specialty?
Dr. David Oh practices Rheumatology Physician in Torrance, CA.
Where does Dr. David Oh practice?
Dr. David Oh practices at 21350 Hawthorne Blvd Ste 260, Torrance, CA 905035645. Office phone: 3105432977.
What is Dr. David Oh's NPI?
Dr. David Oh's National Provider Identifier (NPI) is 1366549255, issued by NPPES.
Does Dr. David Oh accept Medicare assignment?
Yes. Dr. David Oh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Oh commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309). Source: CMS Medicare Physician & Other Practitioners file.