2026 NPPES data Behavioral Neurology & Neuropsychiatry Physician NPI 1659753705 MD
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TIANXU XIA, MD

Behavioral Neurology & Neuropsychiatry Physician in HOUSTON, Texas. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 317 beneficiaries · Behavioral Neurology & Neuropsychiatry Physician avg: 804

What the federal data shows

TIANXU XIA, MD filed 1,461 Medicare Part D claims in 2023 as a Behavioral Neurology & Neuropsychiatry Physician in HOUSTON, Texas.

1K
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

TIANXU XIA, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,461 Top 20% higher than 80% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). This entry sits in this band. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

TIANXU XIA, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about TIANXU XIA, MD?

Quality data not reported

NPI registry status

Active

Issued 06/25/2015

NPI 1659753705

Primary specialty

Behavioral Neurology & Neuropsychiatry Physician

Rare

268 US NPIs in this specialty

Medicare Part D claims

1,461 82% vs specialty avg

2023 prescription claims

Specialty avg: 804

Specialty distribution in Texas

How Behavioral Neurology & Neuropsychiatry Physician compares to other specialties among Texas providers

Texas providers

Behavioral Neurology & Neuropsychiatry Physician share within Texas

1. Behavioral Neurology & Neuropsychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Behavioral Neurology & Neuropsychiatry Physician share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Behavioral Neurology & Neuropsychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Behavioral Neurology & Neuropsychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Behavioral Neurology & Neuropsychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Behavioral Neurology & Neuropsychiatry Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

TIANXU XIA, MD appears in the CMS NPPES registry as a Behavioral Neurology & Neuropsychiatry Physician provider holding MD credentials at 1941 EAST RD STE 4358, HOUSTON, TX, 77054, with a listed phone of (713) 486-0500. NPI 1659753705 was issued on 06/25/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what XIA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,461 prescription claims written by this provider, covering 317 Medicare beneficiaries and totaling roughly $77K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Behavioral Neurology & Neuropsychiatry Physician is a narrow specialty nationwide, with 268 enrolled providers across 43 states and an average of 804 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1941 EAST RD STE 4358
HOUSTON, TX 77054

Provider Details

NPI 1659753705
Specialty Behavioral Neurology & Neuropsychiatry Physician
Credentials MD
Gender Male
NPI Issued 06/25/2015

Hospital and facility affiliations

Facilities where TIANXU XIA, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
NEW YORK, NY
UT PHYSICIANS
HOUSTON, TX

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to TIANXU XIA, MD. To verify TIANXU XIA, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,461
Total Claims
$77K
Total Drug Cost
317
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,137
Total Day Supply
93,472
Generic Drug Cost
$76K

Patient Demographics

Average Patient Age
78.5 years
Avg HCC Risk Score
1.63
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What TIANXU XIA, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Escitalopram Oxalate
408
Donepezil Hcl
254
Galantamine Er
Galantamine Hbr
229
Galantamine Hbr
129
Trazodone Hcl
80
Quetiapine Fumarate
63
Sertraline Hcl
57
Mirtazapine
46
Memantine Hcl
37
Rivastigmine
Rivastigmine Tartrate
26

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Behavioral Neurology & Neuropsychiatry Physician Overview

How TIANXU XIA, MD fits within the Behavioral Neurology & Neuropsychiatry Physician landscape nationally.

268
Behavioral Neurology & Neuropsychiatry Physician Providers in US
43
States with Behavioral Neurology & Neuropsychiatry Physician
804
Avg Claims per Provider

TIANXU XIA, MD's 1,461 claims are above the specialty average of 804.

Nearby Behavioral Neurology & Neuropsychiatry Physician Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as XIA.

Compare Behavioral Neurology & Neuropsychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TIANXU XIA, MD's specialty?
TIANXU XIA, MD specializes in Behavioral Neurology & Neuropsychiatry Physician and practices in HOUSTON, Texas. Credentials: MD.
How much does TIANXU XIA, MD prescribe under Medicare Part D?
In 2023, TIANXU XIA, MD wrote 1,461 Medicare Part D claims totaling $77K in drug costs for 317 beneficiaries.
Where is TIANXU XIA, MD located?
TIANXU XIA, MD is located at 1941 EAST RD STE 4358, HOUSTON, TX, 77054. Phone: (713) 486-0500.
What is TIANXU XIA, MD's NPI number?
TIANXU XIA, MD's National Provider Identifier (NPI) is 1659753705, issued on 06/25/2015.
How many Behavioral Neurology & Neuropsychiatry Physician providers are there in the US?
There are 268 Behavioral Neurology & Neuropsychiatry Physician providers across 43 states in the US. The average Behavioral Neurology & Neuropsychiatry Physician provider writes 804 Medicare Part D claims per year.
What drugs does TIANXU XIA, MD prescribe most often?
Based on 2023 Medicare Part D data, TIANXU XIA, MD's most frequently prescribed drugs include Escitalopram Oxalate, Donepezil Hcl, Galantamine Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TIANXU XIA, MD accept Medicare?
TIANXU XIA, MD appears in CMS Medicare data with 1,461 Part D claims and 317 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TIANXU XIA, MD's credentials?
TIANXU XIA, MD's NPI is 1659753705 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology