Zhenzhen Xu, MD
NPI 1194229153 · Internal Medicine Physician · Dallas, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zhenzhen Xu, MD is a Internal Medicine Physician provider in Dallas, TX (NPI 1194229153).
Provider details
- NPI number
- 1194229153
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- U4052 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
154 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 | 108 | $119 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 28 | $79 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 18 | $115 |
Typical Medicare-allowed amounts for these services range $79–$119 (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.
Practice location
Mailing address
Additional practice locations (2)
- 757 Westwood PlazaInternal MedicineLos Angeles, CA 90095-7419Phone: (310) 825-7375
- 8700 Beverly BlvdWest Hollywood, CA 90048-1804Phone: (310) 423-8784Fax: (310) 423-2665
Registry dates
- Enumerated
- 2018-03-22
- Last updated
- 2024-08-06
- Certified
- 2024-08-06
Frequently asked questions
- What is Zhenzhen Xu's NPI number?
- Zhenzhen Xu's National Provider Identifier (NPI) is 1194229153, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zhenzhen Xu's specialty?
- Zhenzhen Xu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zhenzhen Xu located?
- Zhenzhen Xu's practice location on file with NPPES is 5200 Harry Hines Blvd, Dallas, TX 75235-7709.
- What is Zhenzhen Xu's phone number?
- The practice phone number listed in the NPPES registry for Zhenzhen Xu is (214) 590-4656.
- Does Zhenzhen Xu accept Medicare?
- Zhenzhen Xu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zhenzhen Xu's NPI active?
- Yes — Zhenzhen Xu's NPI (1194229153) is active in the NPPES registry as of the last update on 2024-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.