Doctor profile · Federal record
Dr. Emerson Chen, MD
Hematology & Oncology Physician (CMS: Medical Oncology) · Portland, OR
- NPI 1134564610
- Accepts Medicare
- MIPS 90.5 / 100 · 2023
- 13 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3181 Sw Sam Jackson Park RD, Mail Code: Oc14Ho
Portland, OR 972393011
(503) 494-4335
Credentials & registration
- NPI registered
- May 2013 — 13 yrs on file
- Profile last updated
- April 29, 2019
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Oregon #MD182080
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134564610. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
249
Distinct HCPCS
4
Medicare allowed
$34,139
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 148 | 48 | $144 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 64 | 37 | $98 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 26 | 26 | $181 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $174 |
In context: peer comparison
Among 16 peers in Portland Hematology & Oncology Physician, average services per provider: 512. This provider delivers 0.5× the peer median.Open Payments
Industry payments received
All-time total
$37
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Daiichi Sankyo INC. | 1 | $37.24 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
385
Patients
137
Total drug cost
$70,341
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Dexamethasone | Generic | 63 | 26 | $560 |
| Prochlorperazine Maleate | Generic | 52 | 30 | $1,187 |
| Ondansetron Odt (Ondansetron) | Brand | 40 | 24 | $944 |
| Eliquis (Apixaban) | Brand | 36 | 11 | $23,014 |
| Omeprazole | Generic | 31 | 0 | $245 |
| Loperamide (Loperamide Hcl) | Brand | 27 | 20 | $284 |
| Creon (Lipase/Protease/Amylase) | Brand | 25 | 0 | $41,651 |
| Ondansetron Hcl | Generic | 19 | 15 | $222 |
| Prednisone | Generic | 15 | 0 | $127 |
| Lactulose | Generic | 14 | 0 | $131 |
Frequently asked questions
What is Dr. Emerson Chen's medical specialty?
Dr. Emerson Chen practices Hematology & Oncology Physician in Portland, OR.
Where does Dr. Emerson Chen practice?
Dr. Emerson Chen practices at 3181 Sw Sam Jackson Park RD, Portland, OR 972393011. Office phone: 5034944335.
What is Dr. Emerson Chen's NPI?
Dr. Emerson Chen's National Provider Identifier (NPI) is 1134564610, issued by NPPES.
Does Dr. Emerson Chen accept Medicare assignment?
Yes. Dr. Emerson Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Emerson Chen 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); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.