Doctor profile · Federal record
Dr. Walailuk Chaiyarat, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Concord, CA
- NPI 1811140478
- Accepts Medicare
- MIPS 85.7 / 100 · 2023
- 26 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
2571 Park Ave
Concord, CA 945201901
(925) 674-2100 - Additional location
-
100 Hospital Dr Ste 110B
Vallejo, CA 945892577
(707) 551-3300 - Additional location
-
3000 Oak RD # 311
Walnut Creek, CA 945972092 - Mailing address
-
1450 Treat Blvd # 300
Walnut Creek, CA 945972168
Credentials & registration
- NPI registered
- October 2008 — 18 yrs on file
- Profile last updated
- June 11, 2019
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- California #A117301
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811140478. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
82,370
Distinct HCPCS
10
Medicare allowed
$1,603,768
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q0138 |
Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) | 33,150 | 28 | $1 | |
J9271 |
Injection, pembrolizumab, 1 mg | 20,600 | 14 | $48 | |
J1453 |
Injection, fosaprepitant, 1 mg | 8,850 | 15 | $0 | |
J0897 |
Injection, denosumab, 1 mg | 7,440 | 37 | $22 | |
Q5106 |
Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | 4,821 | 13 | $8 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 1,234 | 28 | $0 | |
J2469 |
Injection, palonosetron hcl, 25 mcg | 1,100 | 23 | $1 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,090 | 290 | $147 | |
96372 |
Injection of drug or substance under skin or into muscle | 424 | 72 | $17 | |
J2405 |
Injection, ondansetron hydrochloride, per 1 mg | 384 | 16 | $0 |
In context: peer comparison
Among 2 peers in Concord Hematology & Oncology Physician, average services per provider: 1,461. This provider delivers 56× the peer median.Open Payments
Industry payments received
All-time total
$2,500
Transactions
87
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 11 | $246.04 | |
| Merck Sharp & Dohme LLC | 8 | $236.14 | |
| Novartis Pharmaceuticals Corporation | 8 | $180.42 | |
| Pfizer INC. | 7 | $160.21 | |
| Janssen Biotech, INC. | 7 | $159.48 | |
| Abbvie INC. | 7 | $149.37 | |
| Takeda Pharmaceuticals U.S.A., INC. | 9 | $140.61 | |
| E.R. Squibb & Sons, L.L.C. | 7 | $138.69 | |
| SpringWorks Therapeutics, INC. | 4 | $109.90 | |
| Array Biopharma INC | 3 | $95.91 | |
| Daiichi Sankyo INC. | 4 | $95.65 | |
| Celgene Corporation | 4 | $95.61 | |
| GlaxoSmithKline, LLC. | 3 | $94.38 | |
| Genmab U.S., INC. | 3 | $84.95 | |
| Agios Pharmaceuticals, INC. | 2 | $74.76 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
943
Patients
354
Total drug cost
$148,866
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 119 | 51 | $2,842 |
| Eliquis (Apixaban) | Brand | 108 | 33 | $125,550 |
| Mirtazapine | Generic | 96 | 37 | $2,788 |
| Pantoprazole Sodium | Generic | 81 | 29 | $2,245 |
| Levothyroxine Sodium | Generic | 78 | 25 | $1,703 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 71 | 37 | $1,118 |
| Letrozole | Generic | 56 | 19 | $3,087 |
| Lorazepam | Generic | 52 | 29 | $564 |
| Potassium Chloride | Generic | 52 | 25 | $1,131 |
| Prednisone | Generic | 49 | 17 | $342 |
Hospital affiliations
Frequently asked questions
What is Dr. Walailuk Chaiyarat's medical specialty?
Dr. Walailuk Chaiyarat practices Hematology & Oncology Physician in Concord, CA.
Where does Dr. Walailuk Chaiyarat practice?
Dr. Walailuk Chaiyarat practices at 2571 Park Ave, Concord, CA 945201901. Office phone: 9256742100.
What is Dr. Walailuk Chaiyarat's NPI?
Dr. Walailuk Chaiyarat's National Provider Identifier (NPI) is 1811140478, issued by NPPES.
Does Dr. Walailuk Chaiyarat accept Medicare assignment?
Yes. Dr. Walailuk Chaiyarat accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Walailuk Chaiyarat commonly perform?
Top Medicare-reported procedures in 2023: Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (HCPCS Q0138); Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, fosaprepitant, 1 mg (HCPCS J1453). Source: CMS Medicare Physician & Other Practitioners file.