NPI registry status
Active
2026 NPPES data Pediatrics Physician NPI 1790952869 MD
Verify on CMS → Adrian Chen, MD
Pediatrics Physician in Richmond, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 80,576 in Pediatrics 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
748
Medicare Part D claims · 253 beneficiaries · Pediatrics Physician avg: 762
Industry payments
$1.4K
82 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Adrian Chen, MD filed 748 Medicare Part D claims in 2023 as a Pediatrics Physician in Richmond, Missouri.
- 748
- 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.
Adrian Chen, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
748 Top 29% higher than 71% 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 certification likely (heuristic, not verified)
Adrian Chen, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Adrian Chen, MD?
Quality data not reportedPrimary specialty
Pediatrics Physician
Medicare Part D claims
748 2% vs specialty avg
Specialty distribution in Missouri
How Pediatrics Physician compares to other specialties among Missouri 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 Pediatrics 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).
Adrian Chen, MD appears in the CMS NPPES registry as a Pediatrics Physician provider holding MD credentials at 902 WOLLARD BLVD, Richmond, MO, 64085, with a listed phone of (816) 776-2201. NPI 1790952869 was issued on 05/08/2008.
Medicare Part D records for calendar year 2023 show 748 prescription claims written by this provider, covering 253 Medicare beneficiaries and totaling roughly $26K in drug spend, with an opioid prescribing rate of 15.5%.
Pediatrics Physician is a high-volume specialty nationwide, with 80,576 enrolled providers across 56 states and an average of 762 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 | 1790952869 |
|---|---|
| Specialty | Pediatrics Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/08/2008 |
Hospital and facility affiliations
Facilities where Adrian Chen, 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.
Meritas Health Corporation
Richmond, MO
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Adrian Chen, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.4K
Largest payer
ABBVIE 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
748
Total Claims
$26K
Total Drug Cost
253
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,176
- Total Day Supply
- 31,256
- Generic Drug Cost
- $11K
- Opioid Claims
- 116 (15.5% rate)
- Antibiotic Claims
- 50
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 1.54
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 46, 65-74: 110, 75-84: 63, 85+: 34
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Adrian Chen, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
56 claims
- Levothyroxine Sodium
Levothyroxine Sodium
25 claims
- Meloxicam
Meloxicam
25 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
25 claims
- Lisinopril 21
Lisinopril
21 claims
- Pantoprazole Sodium 21
Pantoprazole Sodium
21 claims
- Atorvastatin Calcium 18
Atorvastatin Calcium
18 claims
- Gabapentin 18
Gabapentin
18 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 56 |
| Levothyroxine Sodium | 25 |
| Meloxicam | 25 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 25 |
| Lisinopril | 21 |
| Pantoprazole Sodium | 21 |
| Atorvastatin Calcium | 18 |
| Gabapentin | 18 |
| Tramadol Hcl | 18 |
| Amlodipine Besylate | 17 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pediatrics Physician Overview
How Adrian Chen, MD fits within the Pediatrics Physician landscape nationally.
80,576
Pediatrics Physician Providers in US
56
States with Pediatrics Physician
762
Avg Claims per Provider
Adrian Chen, MD's 748 claims are below the specialty average of 762.
Nearby Pediatrics Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Chen.
Dr. Sol Abarca Acevedo
M.D.
Kansas City, MO
Dr. Mohamed Abdelbaki
MD
Saint Louis, MO
Dr. Ruba Abdelhadi
MD
Kansas City, MO
Elaf Abdelmagid
Saint Louis, MO
Dr. Mohamed Aashiq Abdul Ghayum
M.D.
Kansas City, MO
Compare Pediatrics 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 Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pediatrics 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Virtual care options and coverage in 2026
Explore Missouri
Frequently Asked Questions
What is Adrian Chen, MD's specialty? ▼
Adrian Chen, MD specializes in Pediatrics Physician and practices in Richmond, Missouri. Credentials: MD.
How much does Adrian Chen, MD prescribe under Medicare Part D? ▼
In 2023, Adrian Chen, MD wrote 748 Medicare Part D claims totaling $26K in drug costs for 253 beneficiaries.
Where is Adrian Chen, MD located? ▼
Adrian Chen, MD is located at 902 WOLLARD BLVD, Richmond, MO, 64085. Phone: (816) 776-2201.
What is Adrian Chen, MD's NPI number? ▼
Adrian Chen, MD's National Provider Identifier (NPI) is 1790952869, issued on 05/08/2008.
Does Adrian Chen, MD prescribe opioids? ▼
Yes, Adrian Chen, MD had 116 opioid claims in 2023 with an opioid prescribing rate of 15.5%.
How many Pediatrics Physician providers are there in the US? ▼
There are 80,576 Pediatrics Physician providers across 56 states in the US. The average Pediatrics Physician provider writes 762 Medicare Part D claims per year.
What drugs does Adrian Chen, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Adrian Chen, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Levothyroxine Sodium, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Adrian Chen, MD accept Medicare? ▼
Adrian Chen, MD appears in CMS Medicare data with 748 Part D claims and 253 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Adrian Chen, MD's credentials? ▼
Adrian Chen, MD's NPI is 1790952869 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
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.