Wai Man Siu, MD
NPI 1275854671 · Geriatric Medicine (Family Medicine) Physician · Portland, OR
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wai Man Siu, MD is a Geriatric Medicine (Family Medicine) Physician provider in Portland, OR (NPI 1275854671).
Provider details
- NPI number
- 1275854671
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD168402 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
865 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 292 | $33 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 275 | $139 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 99 | $17 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 43 | $219 |
| Admn Sarscov2 Vacc 1 Dose90480 | 32 | $39 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Memantine Hcl | 497 | 123 |
| Donepezil Hcl | 332 | 92 |
| Sertraline Hcl | 271 | 74 |
| Levothyroxine Sodium | 214 | 44 |
| Trazodone Hcl | 171 | 43 |
| Mirtazapine | 167 | 37 |
| Atorvastatin Calcium | 164 | 47 |
Practice location
Mailing address
Additional practice locations (1)
- 2222 Nw Lovejoy St Ste 315Portland, OR 97210-5101Phone: (503) 413-8018
Registry dates
- Enumerated
- 2010-06-20
- Last updated
- 2018-03-17
Frequently asked questions
- What is Wai Man Siu's NPI number?
- Wai Man Siu's National Provider Identifier (NPI) is 1275854671, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wai Man Siu's specialty?
- Wai Man Siu is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Wai Man Siu located?
- Wai Man Siu's practice location on file with NPPES is 8329 Sw Beaverton Hillsdale Hwy Bldg 2, Portland, OR 97225-2215.
- What is Wai Man Siu's phone number?
- The practice phone number listed in the NPPES registry for Wai Man Siu is (503) 414-5160.
- Does Wai Man Siu accept Medicare?
- Wai Man Siu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wai Man Siu's NPI active?
- Yes — Wai Man Siu's NPI (1275854671) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.