Xiannan Tang, MD PHD
NPI 1952669285 · Specialist · Roseville, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Xiannan Tang, MD PHD is a Specialist provider in Roseville, CA (NPI 1952669285).
Provider details
- NPI number
- 1952669285
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- No
- License
- A132121 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 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
33 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 33 | $132 |
Typical Medicare-allowed amounts for these services range $132–$132 (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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 49 | 23 |
| Levetiracetam | 36 | 14 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 31 | 16 |
| Apixabanbrand: Eliquis | 16 | — |
| Ticagrelorbrand: Brilinta | 15 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 757 Westwood Plz Rm B711Los Angeles, CA 90095-1769Phone: (310) 825-6681Fax: (310) 206-4733
Registry dates
- Enumerated
- 2012-04-24
- Last updated
- 2022-01-10
Frequently asked questions
- What is Xiannan Tang's NPI number?
- Xiannan Tang's National Provider Identifier (NPI) is 1952669285, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Xiannan Tang's specialty?
- Xiannan Tang is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Xiannan Tang located?
- Xiannan Tang's practice location on file with NPPES is 1600 Eureka Rd, Roseville, CA 95661-3027.
- What is Xiannan Tang's phone number?
- The practice phone number listed in the NPPES registry for Xiannan Tang is (916) 784-5009.
- Does Xiannan Tang accept Medicare?
- Xiannan Tang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Xiannan Tang's NPI active?
- Yes — Xiannan Tang's NPI (1952669285) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.