Doctor profile · Federal record
Dr. Jun-Ichi Ohara, M.D., PH.D.
Gastroenterology Physician (CMS: Internal Medicine) · Internal Medicine Physician · Irvine, CA
- NPI 1578665667
- Accepts Medicare
- 51 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
22 Odyssey, Suite 170A
Irvine, CA 926183195
(949) 654-8963
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- February 18, 2020
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #AO53621A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1578665667. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
662
Distinct HCPCS
10
Medicare allowed
$86,078
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 339 | 116 | $194 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 58 | 40 | $139 | |
36410 |
Insertion of needle into vein (3 years or older) | 53 | 41 | $19 | |
36415 |
Insertion of needle into vein for collection of blood sample | 44 | 39 | $8 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 38 | 38 | $74 | |
G0008 |
Administration of influenza virus vaccine | 38 | 38 | $31 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 31 | 29 | $16 | |
81002 |
Urinalysis, manual test | 25 | 19 | $3 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 24 | 22 | $142 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 12 | 12 | $237 |
In context: peer comparison
Among 8 peers in Irvine Gastroenterology Physician, average services per provider: 89. This provider delivers 7.4× the peer median.Open Payments
Industry payments received
All-time total
$18
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Phathom Pharmaceuticals, INC. | 1 | $17.84 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
905
Patients
201
Total drug cost
$14,817
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 195 | 59 | $1,669 |
| Amlodipine Besylate | Generic | 155 | 40 | $967 |
| Pantoprazole Sodium | Generic | 91 | 32 | $1,178 |
| Levothyroxine Sodium | Generic | 70 | 14 | $1,423 |
| Losartan Potassium | Generic | 69 | 20 | $690 |
| Fenofibrate | Generic | 50 | 12 | $2,200 |
| Alendronate Sodium | Generic | 39 | 0 | $557 |
| Bisoprolol-Hydrochlorothiazide (Bisoprolol/Hydrochlorothiazide) | Brand | 39 | 0 | $1,483 |
| Simvastatin | Generic | 39 | 0 | $189 |
| Metformin Hcl | Generic | 31 | 0 | $130 |
Hospital affiliations
Frequently asked questions
What is Dr. Jun-Ichi Ohara's medical specialty?
Dr. Jun-Ichi Ohara practices Gastroenterology Physician in Irvine, CA.
Where does Dr. Jun-Ichi Ohara practice?
Dr. Jun-Ichi Ohara practices at 22 Odyssey, Irvine, CA 926183195. Office phone: 9496548963.
What is Dr. Jun-Ichi Ohara's NPI?
Dr. Jun-Ichi Ohara's National Provider Identifier (NPI) is 1578665667, issued by NPPES.
Does Dr. Jun-Ichi Ohara accept Medicare assignment?
Yes. Dr. Jun-Ichi Ohara accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jun-Ichi Ohara commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein (3 years or older) (HCPCS 36410). Source: CMS Medicare Physician & Other Practitioners file.