Michael Siu, M.D.
NPI 1932634870 · Hospitalist Physician · Newport News, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Siu, M.D. is a Hospitalist Physician provider in Newport News, VA (NPI 1932634870).
Provider details
- NPI number
- 1932634870
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 305915 (NY)
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
9 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
877 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 417 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 177 | $115 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 135 | $110 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 58 | $42 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 54 | $169 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 25 | 11 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 16 | 16 |
| Metoprolol Succinate | 13 | — |
| Amlodipine Besylate | 12 | — |
| Pantoprazole Sodium | 12 | — |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 11 | — |
Practice location
Mailing address
Additional practice locations (1)
- 5645 Main StFlushing, NY 11355-5045Phone: (718) 578-0825
Registry dates
- Enumerated
- 2017-04-28
- Last updated
- 2021-08-04
- Certified
- 2021-08-04
Frequently asked questions
- What is Michael Siu's NPI number?
- Michael Siu's National Provider Identifier (NPI) is 1932634870, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Siu's specialty?
- Michael Siu is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Siu located?
- Michael Siu's practice location on file with NPPES is 500 J Clyde Morris Blvd, Newport News, VA 23601-1929.
- What is Michael Siu's phone number?
- The practice phone number listed in the NPPES registry for Michael Siu is (757) 594-3580.
- Does Michael Siu accept Medicare?
- Michael Siu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Siu's NPI active?
- Yes — Michael Siu's NPI (1932634870) is active in the NPPES registry as of the last update on 2021-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.