Hac Nguyen, MD
NPI 1447281829 · Family Medicine Physician · Spring, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hac Nguyen, MD is a Family Medicine Physician provider in Spring, TX (NPI 1447281829).
Provider details
- NPI number
- 1447281829
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- J8691 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
431 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 175 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 155 | $129 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 48 | $128 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 35 | $91 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 18 | $173 |
Typical Medicare-allowed amounts for these services range $91–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 65 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 152 | 48 |
| Losartan Potassium | 145 | 48 |
| Rosuvastatin Calcium | 139 | 47 |
| Zolpidem Tartrate | 110 | 17 |
| Lisinopril | 108 | 35 |
| Triamterene/Hydrochlorothiazidbrand: Triamterene-Hydrochlorothiazid | 94 | 32 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$898 across 12 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2009-12-03
Frequently asked questions
- What is Hac Nguyen's NPI number?
- Hac Nguyen's National Provider Identifier (NPI) is 1447281829, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hac Nguyen's specialty?
- Hac Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hac Nguyen located?
- Hac Nguyen's practice location on file with NPPES is 16736 Champion Forest Dr, Spring, TX 77379-7024.
- What is Hac Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Hac Nguyen is (832) 816-6781.
- Does Hac Nguyen accept Medicare?
- Hac Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hac Nguyen's NPI active?
- Yes — Hac Nguyen's NPI (1447281829) is active in the NPPES registry as of the last update on 2009-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.