Doctor profile · Federal record
Dr. Ronald Mathiasen, MD
Otolaryngology Physician (CMS: Otolaryngology) · San Diego, CA
- NPI 1790740629
- Accepts Medicare
- MIPS 73.6 / 100 · 2023
- 30 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10670 Wexford St
San Diego, CA 921313940
(858) 621-4090
fax (858) 621-4044
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- June 25, 2013
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207Y00000X — NUCC code
- State license (1)
- California #A064829
- Medicaid
- CA #00A648290
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790740629. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
174
Distinct HCPCS
6
Medicare allowed
$36,701
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 52 | 44 | $96 | |
31231 |
Diagnostic exam of nasal passages using an endoscope | 42 | 37 | $214 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 35 | 34 | $135 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 18 | 18 | $120 | |
11643 |
Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 2.1-3.0 cm | 15 | 15 | $174 | |
15740 |
Creation of skin and tissue graft | 12 | 12 | $1,103 |
In context: peer comparison
Among 18 peers in San Diego Otolaryngology Physician, average services per provider: 64. This provider delivers 2.7× the peer median.Open Payments
Industry payments received
All-time total
$168
Transactions
3
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 2 | $128.78 | |
| Stryker Corporation | 1 | $39.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
183
Patients
75
Total drug cost
$3,838
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ipratropium Bromide | Generic | 54 | 15 | $2,113 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 25 | 22 | $134 |
| Azelastine Hcl | Generic | 24 | 0 | $684 |
| Cephalexin | Generic | 22 | 21 | $163 |
| Prednisone | Generic | 20 | 17 | $152 |
| Omeprazole | Generic | 15 | 0 | $121 |
| Triamcinolone Acetonide | Generic | 12 | 0 | $428 |
| Gabapentin | Generic | 11 | 0 | $43 |
Frequently asked questions
What is Dr. Ronald Mathiasen's medical specialty?
Dr. Ronald Mathiasen practices Otolaryngology Physician in San Diego, CA.
Where does Dr. Ronald Mathiasen practice?
Dr. Ronald Mathiasen practices at 10670 Wexford St, San Diego, CA 921313940. Office phone: 8586214090.
What is Dr. Ronald Mathiasen's NPI?
Dr. Ronald Mathiasen's National Provider Identifier (NPI) is 1790740629, issued by NPPES.
Does Dr. Ronald Mathiasen accept Medicare assignment?
Yes. Dr. Ronald Mathiasen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ronald Mathiasen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Diagnostic exam of nasal passages using an endoscope (HCPCS 31231); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.