Diep Nguyen, DO
NPI 1417140468 · Endocrinology, Diabetes & Metabolism Physician · Allentown, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diep Nguyen, DO is a Endocrinology, Diabetes & Metabolism Physician provider in Allentown, PA (NPI 1417140468).
Provider details
- NPI number
- 1417140468
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- OS015018 (PA)
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
18 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
950 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 445 | $120 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 115 | $33 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 90 | $74 |
| 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 | 78 | $16 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 50 | $13 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 620 | 165 |
| Metformin Hclbrand: Metformin Hcl Er | 243 | 82 |
| Rosuvastatin Calcium | 168 | 49 |
| Semaglutidebrand: Ozempic | 152 | 29 |
| Glipizidebrand: Glipizide Er | 145 | 50 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 135 | 54 |
Practice location
Mailing address
Additional practice locations (1)
- 1243 S Cedar Crest Blvd Ste 2800Allentown, PA 18103-6230Phone: (610) 402-6790Fax: (610) 402-6979
Registry dates
- Enumerated
- 2007-08-23
- Last updated
- 2023-03-07
- Certified
- 2022-02-14
Frequently asked questions
- What is Diep Nguyen's NPI number?
- Diep Nguyen's National Provider Identifier (NPI) is 1417140468, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diep Nguyen's specialty?
- Diep Nguyen is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Diep Nguyen located?
- Diep Nguyen's practice location on file with NPPES is 3435 Winchester Rd, Allentown, PA 18104-2268.
- What is Diep Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Diep Nguyen is (610) 861-8080.
- Does Diep Nguyen accept Medicare?
- Diep Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diep Nguyen's NPI active?
- Yes — Diep Nguyen's NPI (1417140468) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.