Doctor profile · Federal record
Dr. Ann Omachi, MD
Internal Medicine Physician · Daly City, CA
- NPI 1780743740
- 20 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1850 Sullivan Ave, #150
Daly City, CA 94015
(650) 994-2300
fax (650) 992-0122
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #G43405
- Medicaid
- CA #ZZZ83752Z
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1780743740. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
435
Distinct HCPCS
4
Medicare allowed
$40,674
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 241 | 130 | $100 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 69 | 54 | $142 | |
G0008 |
Administration of influenza virus vaccine | 63 | 62 | $33 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 62 | 61 | $76 |
In context: peer comparison
Among 15 peers in Daly City Internal Medicine Physician, average services per provider: 95. This provider delivers 4.6× the peer median.Open Payments
Industry payments received
All-time total
$58
Transactions
3
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 2 | $37.58 | |
| Exact Sciences Corporation | 1 | $20.54 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,988
Patients
573
Total drug cost
$36,157
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 396 | 115 | $6,024 |
| Amlodipine Besylate | Generic | 225 | 61 | $1,800 |
| Levothyroxine Sodium | Generic | 172 | 53 | $2,728 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 148 | 45 | $2,992 |
| Simvastatin | Generic | 146 | 39 | $1,939 |
| Losartan Potassium | Generic | 144 | 45 | $3,033 |
| Rosuvastatin Calcium | Generic | 143 | 40 | $4,475 |
| Lisinopril | Generic | 128 | 34 | $1,044 |
| Metoprolol Succinate | Generic | 116 | 33 | $2,182 |
| Irbesartan | Generic | 103 | 29 | $5,817 |
Frequently asked questions
What is Dr. Ann Omachi's medical specialty?
Dr. Ann Omachi practices Internal Medicine Physician in Daly City, CA.
Where does Dr. Ann Omachi practice?
Dr. Ann Omachi practices at 1850 Sullivan Ave, Daly City, CA 94015. Office phone: 6509942300.
What is Dr. Ann Omachi's NPI?
Dr. Ann Omachi's National Provider Identifier (NPI) is 1780743740, issued by NPPES.
What procedures does Dr. Ann Omachi commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Administration of influenza virus vaccine (HCPCS G0008). Source: CMS Medicare Physician & Other Practitioners file.