Michael Nguyen, M.D.
NPI 1174547319 · Internal Medicine Physician · Galveston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Nguyen, M.D. is a Internal Medicine Physician provider in Galveston, TX (NPI 1174547319).
Provider details
- NPI number
- 1174547319
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- M3667 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
341 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 | 116 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 106 | $94 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 37 | $110 |
| 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 | 36 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $64 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 179 | 62 |
| Amlodipine Besylate | 158 | 53 |
| Rosuvastatin Calcium | 120 | 39 |
| Levothyroxine Sodium | 96 | 31 |
| Losartan Potassium | 86 | 28 |
| Hydrochlorothiazide | 83 | 30 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Nguyen's NPI number?
- Michael Nguyen's National Provider Identifier (NPI) is 1174547319, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Nguyen's specialty?
- Michael Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Nguyen located?
- Michael Nguyen's practice location on file with NPPES is 301 University Blvd, Galveston, TX 77555-1022.
- What is Michael Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Michael Nguyen is (409) 772-2222.
- Does Michael Nguyen accept Medicare?
- Michael Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Nguyen's NPI active?
- Yes — Michael Nguyen's NPI (1174547319) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.