NPI registry status
Active
2026 NPPES data Pediatric Neurodevelopmental Disabilities Physician NPI 1528156429 MD, PHD
Verify on CMS → Ying Peng, MD, PHD
Pediatric Neurodevelopmental Disabilities Physician in Ladera Ranch, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 286 in Pediatric Neurodevelopmental Disabilities 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
252
Medicare Part D claims · 26 beneficiaries · Pediatric Neurodevelopmental Disabilities Physician avg: 386
Generic prescribing
59%
generic claims · 41% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$3.7K
140 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
Ying Peng, MD, PHD filed 252 Medicare Part D claims in 2023 as a Pediatric Neurodevelopmental Disabilities Physician in Ladera Ranch, California, prescribing 59% generic.
- 252
- Part D claims, 2023
- 59%
- generic prescribing
- $3.7K
- 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.
Ying Peng, MD, PHD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
252 49th percentile higher than 49% 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)
Ying Peng, MD, PHD 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 Ying Peng, MD, PHD?
Quality data not reportedPrimary specialty
Pediatric Neurodevelopmental Disabilities Physician
Medicare Part D claims
252 35% vs specialty avg
Specialty distribution in California
How Pediatric Neurodevelopmental Disabilities Physician compares to other specialties among California 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 Neurodevelopmental Disabilities 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).
Ying Peng, MD, PHD appears in the CMS NPPES registry as a Pediatric Neurodevelopmental Disabilities Physician provider holding MD, PHD credentials at 333 CORPORATE DR, Ladera Ranch, CA, 92694, with a listed phone of (949) 215-6662. NPI 1528156429 was issued on 10/10/2006.
Medicare Part D records for calendar year 2023 show 252 prescription claims written by this provider, covering 26 Medicare beneficiaries and totaling roughly $954K in drug spend, split 41% brand-name and 59% generic by claim count.
Pediatric Neurodevelopmental Disabilities Physician is a narrow specialty nationwide, with 286 enrolled providers across 41 states and an average of 386 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 | 1528156429 |
|---|---|
| Specialty | Pediatric Neurodevelopmental Disabilities Physician |
| Credentials | MD, PHD |
| Gender | Female |
| NPI Issued | 10/10/2006 |
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 Ying Peng, MD, PHD. Source: openpaymentsdata.cms.gov.
Total received
$3.7K
Largest payer
UCB, 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.
License & disciplinary context - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Ying Peng, MD, PHD. To verify Ying Peng, MD, PHD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Ying Peng, MD, PHD - brand share 41.0%
Pediatric Neurodevelopmental Disabilities Physician average
41% brand-name claims vs 59% generic, on 252 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.
252
Total Claims
$954K
Total Drug Cost
26
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 398
- Total Day Supply
- 11,723
- Brand vs Generic
- 41% brand / 59% generic
- Brand Drug Cost
- $940K
- Generic Drug Cost
- $14K
Patient Demographics
- Average Patient Age
- 67.2 years
- Avg HCC Risk Score
- 1.20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ying Peng, MD, PHD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Briviact
Briviact
23 claims
- Gammaplex
Gammaplex
18 claims
- Clonazepam
Clonazepam
14 claims
- Gammaked
Gammaked
14 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
13 claims
- Oxtellar Xr
Oxtellar Xr
13 claims
- Gamunex-C
Gamunex-C
12 claims
- Fludrocortisone Ac…
Fludrocortisone Acetate
11 claims
| Drug | Claims |
|---|---|
| Briviact Brivaracetam | 23 |
| Gammaplex Immun Glob G(Igg)/Gly/Iga 0-50 | 18 |
| Clonazepam | 14 |
| Gammaked Immune Globul G/Gly/Iga Avg 46 | 14 |
| Hydroxychloroquine Sulfate | 13 |
| Oxtellar Xr Oxcarbazepine | 13 |
| Gamunex-C Immune Globul G/Gly/Iga Avg 46 | 12 |
| Fludrocortisone Acetate | 11 |
| Sodium Chloride 0.9 % Sodium Chloride | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Pediatric Neurodevelopmental Disabilities Physician in CA →
All providers in California →
Compare specialties →
Pediatric Neurodevelopmental Disabilities Physician Overview
How Ying Peng, MD, PHD fits within the Pediatric Neurodevelopmental Disabilities Physician landscape nationally.
286
Pediatric Neurodevelopmental Disabilities Physician Providers in US
41
States with Pediatric Neurodevelopmental Disabilities Physician
386
Avg Claims per Provider
Ying Peng, MD, PHD's 252 claims are below the specialty average of 386.
Nearby Pediatric Neurodevelopmental Disabilities Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Peng.
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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pediatric Neurodevelopmental Disabilities 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 Ying Peng, MD, PHD's specialty? ▼
Ying Peng, MD, PHD specializes in Pediatric Neurodevelopmental Disabilities Physician and practices in Ladera Ranch, California. Credentials: MD, PHD.
How much does Ying Peng, MD, PHD prescribe under Medicare Part D? ▼
In 2023, Ying Peng, MD, PHD wrote 252 Medicare Part D claims totaling $954K in drug costs for 26 beneficiaries.
Where is Ying Peng, MD, PHD located? ▼
Ying Peng, MD, PHD is located at 333 CORPORATE DR, Ladera Ranch, CA, 92694. Phone: (949) 215-6662.
What is Ying Peng, MD, PHD's NPI number? ▼
Ying Peng, MD, PHD's National Provider Identifier (NPI) is 1528156429, issued on 10/10/2006.
Does Ying Peng, MD, PHD prescribe more brand-name or generic drugs? ▼
Ying Peng, MD, PHD's prescribing is 41% brand-name and 59% generic drugs by claim count, with $940K in brand drug costs.
How many Pediatric Neurodevelopmental Disabilities Physician providers are there in the US? ▼
There are 286 Pediatric Neurodevelopmental Disabilities Physician providers across 41 states in the US. The average Pediatric Neurodevelopmental Disabilities Physician provider writes 386 Medicare Part D claims per year.
What drugs does Ying Peng, MD, PHD prescribe most often? ▼
Based on 2023 Medicare Part D data, Ying Peng, MD, PHD's most frequently prescribed drugs include Briviact, Gammaplex, Clonazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ying Peng, MD, PHD accept Medicare? ▼
Ying Peng, MD, PHD appears in CMS Medicare data with 252 Part D claims and 26 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ying Peng, MD, PHD's credentials? ▼
Ying Peng, MD, PHD's NPI is 1528156429 with credentials MD, PHD. 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.