Cassie Xu, M.D.
NPI 1770947509 · Internal Medicine Physician · Tomball, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassie Xu, M.D. is a Internal Medicine Physician provider in Tomball, TX (NPI 1770947509).
Provider details
- NPI number
- 1770947509
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- R9704 (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
10 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
788 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 35 Minutes99232 | 463 | $80 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 164 | $115 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 122 | $175 |
| Initial Hospital Care With Same-Day Admission and Discharge With High Level of Medical Decision Making, Per Day, If Using Time, at Least 85 Minutes99236 | 39 | $212 |
Typical Medicare-allowed amounts for these services range $80–$212 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 41 | 26 |
| Furosemide | 38 | 24 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 34 | 23 |
| Cefdinir | 33 | 33 |
| Metoprolol Succinate | 26 | 12 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 25 | 25 |
| Atorvastatin Calcium |
Practice location
Mailing address
Additional practice locations (1)
- 2845 Ashland StWest Lafayette, IN 47906-1509Phone: (765) 404-0056
Registry dates
- Enumerated
- 2016-04-07
- Last updated
- 2021-09-13
- Certified
- 2021-08-29
Frequently asked questions
- What is Cassie Xu's NPI number?
- Cassie Xu's National Provider Identifier (NPI) is 1770947509, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassie Xu's specialty?
- Cassie Xu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cassie Xu located?
- Cassie Xu's practice location on file with NPPES is 605 Holderrieth Blvd, Tomball, TX 77375-6445.
- What is Cassie Xu's phone number?
- The practice phone number listed in the NPPES registry for Cassie Xu is (832) 794-0044.
- Does Cassie Xu accept Medicare?
- Cassie Xu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassie Xu's NPI active?
- Yes — Cassie Xu's NPI (1770947509) is active in the NPPES registry as of the last update on 2021-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.