NPI registry status
Active
2026 NPPES data Pediatric Endocrinology Physician NPI 1881787604 M.D.
Verify on CMS → Weizhen Xu, M.D.
Pediatric Endocrinology Physician in New Brunswick, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,459 in Pediatric Endocrinology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
68
Medicare Part D claims · Pediatric Endocrinology Physician avg: 151
Generic prescribing
19%
generic claims · 50% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$84.31
4 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Weizhen Xu, M.D. filed 68 Medicare Part D claims in 2023 as a Pediatric Endocrinology Physician in New Brunswick, New Jersey, prescribing 19% generic.
- 68
- Part D claims, 2023
- 19%
- generic prescribing
- $84.31
- industry payments (Sunshine Act)
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.
Weizhen Xu, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
68 0th percentile higher than 0% of 1,370,886 prescribers
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-eligible specialty (heuristic, not verified)
Weizhen Xu, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Weizhen Xu, M.D.?
Quality data not reportedPrimary specialty
Pediatric Endocrinology Physician
Medicare Part D claims
68 55% vs specialty avg
Specialty distribution in New Jersey
How Pediatric Endocrinology Physician compares to other specialties among New Jersey providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pediatric Endocrinology Physician. Verify directly:
How MIPS and board certification work
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).
Weizhen Xu, M.D. appears in the CMS NPPES registry as a Pediatric Endocrinology Physician provider holding M.D. credentials at 254 EASTON AVE, New Brunswick, NJ, 08901, with a listed phone of (732) 745-8574. NPI 1881787604 was issued on 10/02/2006.
Medicare Part D records for calendar year 2023 show 68 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $13K in drug spend, split 50% brand-name and 19% generic by claim count.
Pediatric Endocrinology Physician is a narrow specialty nationwide, with 1,459 enrolled providers across 51 states and an average of 151 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
Provider Details
| NPI | 1881787604 |
|---|---|
| Specialty | Pediatric Endocrinology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 10/02/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Weizhen Xu, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$84
Largest payer
Tandem Diabetes Care, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Brand-heavy
Weizhen Xu, M.D. - brand share 50.0%
Pediatric Endocrinology Physician average
50% brand-name claims vs 19% generic, on 68 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
68
Total Claims
$13K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 84
- Total Day Supply
- 2,410
- Brand vs Generic
- 50% brand / 19% generic
- Brand Drug Cost
- $9K
- Generic Drug Cost
- $201
Patient Demographics
- Average Patient Age
- 43.0 years
- Avg HCC Risk Score
- 1.59
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 30 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pediatric Endocrinology Physician Overview
How Weizhen Xu, M.D. fits within the Pediatric Endocrinology Physician landscape nationally.
1,459
Pediatric Endocrinology Physician Providers in US
51
States with Pediatric Endocrinology Physician
151
Avg Claims per Provider
Weizhen Xu, M.D.'s 68 claims are below the specialty average of 151.
Nearby Pediatric Endocrinology Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Xu.
Dr. Javier Aisenberg
M.D
Hackensack, NJ
Dr. Henry Anhalt
D.O.
Hackensack, NJ
Dr. Valerie Auyeung
MD
Hackensack, NJ
Dr. Mark Bach
M.D., PH.D.
Scotch Plains, NJ
Dr. Frank Barrows
D.O.
Shrewsbury, NJ
Compare Pediatric Endocrinology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the New Jersey medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pediatric Endocrinology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Weizhen Xu, M.D.'s specialty? ▼
Weizhen Xu, M.D. specializes in Pediatric Endocrinology Physician and practices in New Brunswick, New Jersey. Credentials: M.D..
How much does Weizhen Xu, M.D. prescribe under Medicare Part D? ▼
In 2023, Weizhen Xu, M.D. wrote 68 Medicare Part D claims totaling $13K in drug costs for N/A beneficiaries.
Where is Weizhen Xu, M.D. located? ▼
Weizhen Xu, M.D. is located at 254 EASTON AVE, New Brunswick, NJ, 08901. Phone: (732) 745-8574.
What is Weizhen Xu, M.D.'s NPI number? ▼
Weizhen Xu, M.D.'s National Provider Identifier (NPI) is 1881787604, issued on 10/02/2006.
Does Weizhen Xu, M.D. prescribe more brand-name or generic drugs? ▼
Weizhen Xu, M.D.'s prescribing is 50% brand-name and 19% generic drugs by claim count, with $9K in brand drug costs.
How many Pediatric Endocrinology Physician providers are there in the US? ▼
There are 1,459 Pediatric Endocrinology Physician providers across 51 states in the US. The average Pediatric Endocrinology Physician provider writes 151 Medicare Part D claims per year.
What drugs does Weizhen Xu, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Weizhen Xu, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Weizhen Xu, M.D. accept Medicare? ▼
Weizhen Xu, M.D. appears in CMS Medicare data with 68 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Weizhen Xu, M.D.'s credentials? ▼
Weizhen Xu, M.D.'s NPI is 1881787604 with credentials M.D.. 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.