Ngoc Lien Nguyen, M.D.
NPI 1912321332 · Family Medicine Physician · Mcdonough, GA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ngoc Lien Nguyen, M.D. is a Family Medicine Physician provider in Mcdonough, GA (NPI 1912321332).
Provider details
- NPI number
- 1912321332
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 36511 (SC)
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
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
894 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 232 | $120 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 193 | $59 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 122 | $9 |
| 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 | 107 | $16 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 81 | $45 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 112 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 248 | 86 |
| Amlodipine Besylate | 193 | 70 |
| Levothyroxine Sodium | 188 | 50 |
| Lisinopril | 157 | 49 |
| Omeprazole | 129 | 37 |
| Losartan Potassium | 119 | 41 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (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 (1)
- 1336 Highway 14Simpsonville, SC 29681-5637Phone: (864) 522-4700
Registry dates
- Enumerated
- 2014-02-05
- Last updated
- 2025-08-15
- Certified
- 2025-08-15
Frequently asked questions
- What is Ngoc Lien Nguyen's NPI number?
- Ngoc Lien Nguyen's National Provider Identifier (NPI) is 1912321332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ngoc Lien Nguyen's specialty?
- Ngoc Lien Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ngoc Lien Nguyen located?
- Ngoc Lien Nguyen's practice location on file with NPPES is 3459 Highway 81 E, Mcdonough, GA 30252-7119.
- What is Ngoc Lien Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Ngoc Lien Nguyen is (678) 604-5050.
- Does Ngoc Lien Nguyen accept Medicare?
- Ngoc Lien Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ngoc Lien Nguyen's NPI active?
- Yes — Ngoc Lien Nguyen's NPI (1912321332) is active in the NPPES registry as of the last update on 2025-08-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.