Dat Nguyen, MD
NPI 1386626448 · Family Medicine Physician · La Mesa, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dat Nguyen, MD is a Family Medicine Physician provider in La Mesa, CA (NPI 1386626448).
Provider details
- NPI number
- 1386626448
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A83262 (CA)
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
20 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
2,726 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 50 Minutes99233 | 1,265 | $121 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 729 | $42 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 264 | $61 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 218 | $159 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 69 | $188 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 121 | 28 |
| Apixabanbrand: Eliquis | 94 | 12 |
| Metformin Hcl | 92 | 13 |
| Gabapentin | 80 | 16 |
| Olanzapine | 79 | — |
| Levothyroxine Sodium | 75 | 15 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-15
- Last updated
- 2023-08-02
- Certified
- 2023-08-02
Frequently asked questions
- What is Dat Nguyen's NPI number?
- Dat Nguyen's National Provider Identifier (NPI) is 1386626448, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dat Nguyen's specialty?
- Dat Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dat Nguyen located?
- Dat Nguyen's practice location on file with NPPES is 5565 Grossmont Center Dr Ste 229, La Mesa, CA 91942-3026.
- What is Dat Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Dat Nguyen is (858) 349-3760.
- Does Dat Nguyen accept Medicare?
- Dat Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dat Nguyen's NPI active?
- Yes — Dat Nguyen's NPI (1386626448) is active in the NPPES registry as of the last update on 2023-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.