Ann Nguyen, M.D.
NPI 1225323694 · Hospice and Palliative Medicine (Internal Medicine) Physician · Dallas, TX
Enrolled with Medicare as Practitioner - Hospice/Palliative Care · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Nguyen, M.D. is a Hospice and Palliative Medicine (Internal Medicine) Physician provider in Dallas, TX (NPI 1225323694).
Provider details
- NPI number
- 1225323694
- Entity type
- Individual
- Primary specialty
- Hospice and Palliative Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- Q2474 (TX)
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 tenure28% of score
15 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
448 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) |
|---|---|---|
| Advance Care Planning, First 30 Minutes99497 | 113 | $71 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 99 | $112 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 77 | $74 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 71 | $165 |
| Advance Care Planning, Each Additional 30 Minutes99498 | 21 | $68 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By Th |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Fentanyl | 35 |
| Hydromorphone Hcl | 26 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 23 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 21 |
| Ibuprofen | 14 |
| Alprazolam | 13 |
| Ondansetron Hcl | 13 |
| Tizanidine Hcl | 13 |
| Gabapentin | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-14
- Last updated
- 2022-03-25
- Certified
- 2022-03-25
Frequently asked questions
- What is Ann Nguyen's NPI number?
- Ann Nguyen's National Provider Identifier (NPI) is 1225323694, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Nguyen's specialty?
- Ann Nguyen is listed in the NPPES registry with a primary specialty of Hospice and Palliative Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Nguyen located?
- Ann Nguyen's practice location on file with NPPES is 3500 Gaston Ave, Dallas, TX 75246-2017.
- What is Ann Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Ann Nguyen is (214) 820-9248.
- Does Ann Nguyen accept Medicare?
- Ann Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Nguyen's NPI active?
- Yes — Ann Nguyen's NPI (1225323694) is active in the NPPES registry as of the last update on 2022-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.