Doctor profile · Federal record
Dr. Charles Oh, M.D.
Specialist (CMS: Otolaryngology) · Tustin, CA
- NPI 1780689042
- Accepts Medicare
- MIPS 90.7 / 100 · 2023
- 30 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2552 Walnut Ave, Suite 130
Tustin, CA 927806935
(714) 508-1600
fax (714) 665-8304
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- June 28, 2011
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 174400000X — NUCC code
- State license (1)
- California #A83003
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1780689042. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,998
Distinct HCPCS
10
Medicare allowed
$274,023
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 527 | 345 | $98 | |
69210 |
Removal of impacted ear wax | 465 | 325 | $50 | |
95004 |
Test for allergy using allergenic extract | 464 | 11 | $5 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 308 | 204 | $139 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 207 | 207 | $180 | |
92557 |
Comprehensive hearing and speech recognition test | 177 | 170 | $40 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 160 | 160 | $122 | |
92567 |
Test to assess middle ear function | 126 | 124 | $18 | |
31231 |
Diagnostic exam of nasal passages using an endoscope | 124 | 107 | $218 | |
31575 |
Diagnostic exam of voice box using a flexible endoscope | 120 | 115 | $148 |
In context: peer comparison
Among 1 peers in Tustin Specialist, average services per provider: 157. This provider delivers 19× the peer median.Open Payments
Industry payments received
All-time total
$431
Transactions
24
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Optinose US, INC. | 5 | $177.01 | |
| Genzyme Corporation | 14 | $140.50 | |
| Aerin Medical INC. | 2 | $42.92 | |
| 3B Medical, INC. | 1 | $28.33 | |
| Regeneron Healthcare Solutions, INC. | 1 | $22.41 | |
| GlaxoSmithKline, LLC. | 1 | $20.21 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,409
Patients
800
Total drug cost
$34,751
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Fluticasone Propionate | Generic | 379 | 181 | $6,244 |
| Ipratropium Bromide | Generic | 262 | 106 | $10,914 |
| Cefuroxime (Cefuroxime Axetil) | Brand | 183 | 133 | $3,423 |
| Azelastine Hcl | Generic | 104 | 49 | $3,493 |
| Nortriptyline Hcl | Generic | 74 | 31 | $795 |
| Ofloxacin | Generic | 74 | 47 | $3,068 |
| Famotidine | Generic | 60 | 32 | $460 |
| Mupirocin | Generic | 58 | 45 | $444 |
| Acetic Acid | Generic | 47 | 38 | $1,269 |
| Betamethasone Valerate | Generic | 36 | 36 | $769 |
Frequently asked questions
What is Dr. Charles Oh's medical specialty?
Dr. Charles Oh practices Specialist in Tustin, CA.
Where does Dr. Charles Oh practice?
Dr. Charles Oh practices at 2552 Walnut Ave, Tustin, CA 927806935. Office phone: 7145081600.
What is Dr. Charles Oh's NPI?
Dr. Charles Oh's National Provider Identifier (NPI) is 1780689042, issued by NPPES.
Does Dr. Charles Oh accept Medicare assignment?
Yes. Dr. Charles Oh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Charles Oh commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Removal of impacted ear wax (HCPCS 69210); Test for allergy using allergenic extract (HCPCS 95004). Source: CMS Medicare Physician & Other Practitioners file.