NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1558757757 MD, MS
Verify on CMS → Michael Chen, MD, MS
Neurology Physician in Seattle, Washington. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 19,866 in Neurology 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
73
Medicare Part D claims · 26 beneficiaries · Neurology Physician avg: 1K
Industry payments
$388
3 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Michael Chen, MD, MS filed 73 Medicare Part D claims in 2023 as a Neurology Physician in Seattle, Washington.
- 73
- 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.
Michael Chen, MD, MS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
73 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 certification likely (heuristic, not verified)
Michael Chen, MD, MS practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 18 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 Michael Chen, MD, MS?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
73 94% vs specialty avg
Specialty distribution in Washington
How Neurology Physician compares to other specialties among Washington 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 Neurology Physician. Verify directly:
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).
Michael Chen, MD, MS appears in the CMS NPPES registry as a Neurology Physician provider holding MD, MS credentials at 550 17TH AVE, Seattle, WA, 98122, with a listed phone of (206) 320-2800. NPI 1558757757 was issued on 04/14/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Chen 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 73 prescription claims written by this provider, covering 26 Medicare beneficiaries and totaling roughly $6K 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.
Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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 | 1558757757 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | MD, MS |
| Gender | Male |
| NPI Issued | 04/14/2015 |
Hospital and facility affiliations
Facilities where Michael Chen, MD, MS 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.
According to CMS billing records, Michael Chen, MD, MS is affiliated with 18 Medicare-billing facilities across 8 states, 1 of which carry a CMS Hospital overall star rating.
Singing River Health System
★☆☆☆☆ 1/5
Ocean Springs, MS
Acute Care Hospitals
CMS CCN: 250040
Freeman-Oak Hill Health System
Joplin, MO
Hannibal Regional Healthcare System Inc
Hannibal, MO
North Atlanta Professional Services LLC
Atlanta, GA
North Oaks Medical Center LLC
Issaquah, WA
Northern Inyo Healthcare District
Bishop, CA
Providence Health And Services - Washington
Issaquah, WA
Providence Health And Services Mt
Issaquah, WA
Providence Health And Services Oregon
Issaquah, WA
Providence Health And Services Washington
Issaquah, WA
Providence Health And Services- Washington
Issaquah, WA
Providence Health And Services- Washington
Issaquah, WA
Providence Medical Institute
Issaquah, WA
Riverside Physician Services Inc
Newport News, VA
Swedish Health Services
Edmonds, WA
Vidant Medical Group LLC
Issaquah, WA
Showing the 16 highest-rated of 18 affiliated facilities.
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 Michael Chen, MD, MS. Source: openpaymentsdata.cms.gov.
Total received
$388
Largest payer
MicroVention, 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 - Washington WMC 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 ~34K Washington medical licensees in 2023 - they are NOT specific to Michael Chen, MD, MS. To verify Michael Chen, MD, MS's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC 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 Washington 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.
73
Total Claims
$6K
Total Drug Cost
26
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 141
- Total Day Supply
- 4,179
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 1.45
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 22 |
| Levetiracetam | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Michael Chen, MD, MS fits within the Neurology Physician landscape nationally.
19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Michael Chen, MD, MS's 73 claims are below the specialty average of 1,309.
Nearby Neurology Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Chen.
Nandini Abburi
Seattle, WA
Dr. Tilahun Abraha
MD
Olympia, WA
Dr. Ali Abu-Alya
DO
Seattle, WA
Dr. Carlos Acevedo
MD
Walla Walla, WA
Dr. Makeda Agonafer
M.D.
Renton, WA
Compare Neurology 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 Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Neurology 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
Telehealth Guide
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Explore Washington
Frequently Asked Questions
What is Michael Chen, MD, MS's specialty? ▼
Michael Chen, MD, MS specializes in Neurology Physician and practices in Seattle, Washington. Credentials: MD, MS.
How much does Michael Chen, MD, MS prescribe under Medicare Part D? ▼
In 2023, Michael Chen, MD, MS wrote 73 Medicare Part D claims totaling $6K in drug costs for 26 beneficiaries.
Where is Michael Chen, MD, MS located? ▼
Michael Chen, MD, MS is located at 550 17TH AVE, Seattle, WA, 98122. Phone: (206) 320-2800.
What is Michael Chen, MD, MS's NPI number? ▼
Michael Chen, MD, MS's National Provider Identifier (NPI) is 1558757757, issued on 04/14/2015.
How many Neurology Physician providers are there in the US? ▼
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Michael Chen, MD, MS prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Chen, MD, MS's most frequently prescribed drugs include Atorvastatin Calcium, Levetiracetam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Chen, MD, MS accept Medicare? ▼
Michael Chen, MD, MS appears in CMS Medicare data with 73 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 Michael Chen, MD, MS's credentials? ▼
Michael Chen, MD, MS's NPI is 1558757757 with credentials MD, MS. 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
Compiled from official public sources by the PlainDoctor editorial team.