Hiep Nguyen, MD
NPI 1821189937 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Gainesville, FL
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hiep Nguyen, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Gainesville, FL (NPI 1821189937).
Provider details
- NPI number
- 1821189937
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C10004586 (DE)
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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
340 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 71 | $78 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 55 | $129 |
| Harvest of Vein Using an Endoscope33508 | 41 | $16 |
| Replacement of Aortic Valve Through the Skin and Femoral Artery33361 | 29 | $769 |
| Exclusion of Appendage of Left Upper Chamber of Heart Performed During Other Procedure on Chest33268 | 27 | $133 |
| Coronary Artery Bypass Using Artery Graft, 1 Graft33533 | 26 | $1,840 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mupirocin | 19 | 19 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$598 across 11 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
Additional practice locations (4)
- 720 W Oak St Ste 360Kissimmee, FL 34741-4910Phone: (407) 846-0090Fax: (407) 846-0072
- 700 Doctors CtLeesburg, FL 34748-7314Phone: (352) 787-9838
- 600 E Dixie AveLeesburg, FL 34748-5925Phone: (352) 323-5762
- 1400 N US Highway 441 Ste 526The Villages, FL 32159-8984Phone: (352) 751-8960
Registry dates
- Enumerated
- 2006-09-27
- Last updated
- 2024-04-29
- Certified
- 2024-04-29
Frequently asked questions
- What is Hiep Nguyen's NPI number?
- Hiep Nguyen's National Provider Identifier (NPI) is 1821189937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hiep Nguyen's specialty?
- Hiep Nguyen is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Hiep Nguyen located?
- Hiep Nguyen's practice location on file with NPPES is 1600 Sw Archer Rd, Gainesville, FL 32610-4910.
- What is Hiep Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Hiep Nguyen is (352) 265-0535.
- Does Hiep Nguyen accept Medicare?
- Hiep Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hiep Nguyen's NPI active?
- Yes — Hiep Nguyen's NPI (1821189937) is active in the NPPES registry as of the last update on 2024-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.