Doctor profile · Federal record
Dr. Michael Dao, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Garden Grove, CA
- NPI 1437321932
- Accepts Medicare
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9191 Westminster Ave
Garden Grove, CA 928442751
(714) 899-2000
Credentials & registration
- NPI registered
- March 2008 — 18 yrs on file
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A51334
- Medicaid
- CA #00A513340
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1437321932. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
14,849
Distinct HCPCS
10
Medicare allowed
$1,749,132
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 5,331 | 581 | $64 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 3,601 | 1,085 | $98 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 731 | 141 | $1 | |
20610 |
Aspiration and/or injection of fluid from large joint | 671 | 199 | $60 | |
96372 |
Injection of drug or substance under skin or into muscle | 650 | 330 | $16 | |
J7324 |
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose | 578 | 173 | $126 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 573 | 507 | $139 | |
G0008 |
Administration of influenza virus vaccine | 488 | 485 | $33 | |
90662 |
Influenza vaccine split virus, preservative free | 467 | 464 | $72 | |
36475 |
Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance | 321 | 96 | $1,241 |
In context: peer comparison
Among 16 peers in this city , average services per provider: 257. This provider delivers 58× the peer median.Open Payments
Industry payments received
All-time total
$7,580
Transactions
221
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 23 | $999.06 | |
| Amgen Inc. | 23 | $649.22 | |
| ABBVIE INC. | 32 | $588.63 | |
| Phathom Pharmaceuticals, Inc. | 22 | $539.35 | |
| Gilead Sciences, Inc. | 11 | $494.67 | |
| Madrigal Pharmaceuticals | 8 | $290.60 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 8 | $288.29 | |
| Almatica Pharma LLC | 12 | $270.04 | |
| AIMMUNE THERAPEUTICS, INC. | 13 | $260.99 | |
| Novartis Pharmaceuticals Corporation | 26 | $253.59 | |
| Neurocrine Biosciences, Inc. | 5 | $240.38 | |
| Bayer Healthcare Pharmaceuticals Inc. | 16 | $191.55 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 12 | $173.27 | |
| Ardelyx, Inc. | 8 | $165.10 | |
| SCILEX PHARMACEUTICALS INC. | 2 | $159.58 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
17,804
Patients
5,136
Total drug cost
$2,463,872
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 2,051 | 635 | $32,997 |
| Losartan Potassium | Generic | 1,961 | 593 | $37,300 |
| Pantoprazole Sodium | Generic | 1,598 | 465 | $11,460 |
| Amlodipine Besylate | Generic | 1,453 | 458 | $14,625 |
| Montelukast Sodium | Generic | 1,430 | 374 | $12,736 |
| Diclofenac Sodium | Generic | 1,399 | 400 | $463,735 |
| Famotidine | Generic | 1,194 | 292 | $11,962 |
| Gabapentin | Generic | 962 | 268 | $9,150 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 940 | 248 | $1,214,866 |
| Fluticasone Propionate | Generic | 922 | 270 | $15,509 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Dao's medical specialty?
Dr. Michael Dao practices Internal Medicine Physician in Garden Grove, CA.
Where does Dr. Michael Dao practice?
Dr. Michael Dao practices at 9191 Westminster Ave, Garden Grove, CA 928442751. Office phone: 7148992000.
What is Dr. Michael Dao's NPI?
Dr. Michael Dao's National Provider Identifier (NPI) is 1437321932, issued by NPPES.
Does Dr. Michael Dao accept Medicare assignment?
Yes. Dr. Michael Dao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Dao commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services (HCPCS 99490); Established patient office or other outpatient visit (HCPCS 99213); Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301). Source: CMS Medicare Physician & Other Practitioners file.