Nguyen Phan, M.D.
NPI 1245266949 · Internal Medicine Physician · Spring, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nguyen Phan, M.D. is a Internal Medicine Physician provider in Spring, TX (NPI 1245266949).
Provider details
- NPI number
- 1245266949
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L9848 (TX)
Specialties & taxonomies
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
829 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 | 352 | $129 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 202 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 192 | $91 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 37 | $130 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 17 | $113 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 183 | 52 |
| Amlodipine Besylate | 98 | 28 |
| Atorvastatin Calcium | 71 | 22 |
| Metoprolol Succinate | 68 | 24 |
| Losartan Potassium | 68 | 24 |
| Lisinopril | 61 | 19 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$115 across 7 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
Registry dates
- Enumerated
- 2006-06-24
- Last updated
- 2012-05-21
Frequently asked questions
- What is Nguyen Phan's NPI number?
- Nguyen Phan's National Provider Identifier (NPI) is 1245266949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nguyen Phan's specialty?
- Nguyen Phan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nguyen Phan located?
- Nguyen Phan's practice location on file with NPPES is 8515 Spring Cypress Rd, Spring, TX 77379-3354.
- What is Nguyen Phan's phone number?
- The practice phone number listed in the NPPES registry for Nguyen Phan is (281) 376-2200.
- Does Nguyen Phan accept Medicare?
- Nguyen Phan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nguyen Phan's NPI active?
- Yes — Nguyen Phan's NPI (1245266949) is active in the NPPES registry as of the last update on 2012-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.