Doctor profile · Federal record
Dr. Alison Ma, M.D.
Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Internal Medicine Physician · Portland, OR
- NPI 1609083237
- Accepts Medicare
- MIPS 78.0 / 100 · 2023
- 20 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9205 Sw Barnes RD
Portland, OR 972256603
(503) 216-2906 - Mailing address
-
Po Box 3158
Portland, OR 972083158
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- July 26, 2021
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State licenses (2)
- Oregon #MD29096 · Washington #MD60096568
- Medicaid
- OR #500615598
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609083237. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
236
Distinct HCPCS
2
Medicare allowed
$28,138
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 157 | 79 | $121 | |
99239 |
Hospital discharge day management, more than 30 minutes | 79 | 78 | $116 |
In context: peer comparison
Among 94 peers in Portland Hospitalist Physician, average services per provider: 68. This provider delivers 3.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
41
Patients
11
Total drug cost
$1,148
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Lamotrigine | Generic | 19 | 0 | $781 |
| Cephalexin | Generic | 11 | 11 | $112 |
| Pantoprazole Sodium | Generic | 11 | 0 | $255 |
Hospital affiliations
Frequently asked questions
What is Dr. Alison Ma's medical specialty?
Dr. Alison Ma practices Hospitalist Physician in Portland, OR.
Where does Dr. Alison Ma practice?
Dr. Alison Ma practices at 9205 Sw Barnes RD, Portland, OR 972256603. Office phone: 5032162906.
What is Dr. Alison Ma's NPI?
Dr. Alison Ma's National Provider Identifier (NPI) is 1609083237, issued by NPPES.
Does Dr. Alison Ma accept Medicare assignment?
Yes. Dr. Alison Ma accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alison Ma commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.