NPI registry status
Active
2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1497769095 MD
Verify on CMS → David Chen, MD
Physical Medicine & Rehabilitation Physician in Chicago, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,336 in Physical Medicine & Rehabilitation 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
1K
Medicare Part D claims · 133 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
80.5/100
▼ 3 pts below national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
David Chen, MD reported a CMS MIPS final score of 80.5/100 - below the 83.5 national average - and filed 1,377 Medicare Part D claims in 2023.
- 80.5/100
- MIPS score · -3 vs avg
- 1K
- Part D claims, 2023
- 97%
- generic prescribing
- 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.
Federal trust snapshot
What official records show about David Chen, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1497769095), first enumerated 07/28/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,377 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 80.5/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not David Chen, MD's individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1497769095 · Physical Medicine & Rehabilitation Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1497769095
- ENUM-LEGACY 2006
- TAX-MID 15K Physical Medicine
- MIPS-INLINE 80.5/100
- RX-MID 1,377
- BOOK-LIGHT 654 in Illinois
- PHOTO-FINISH Akash Bhakta · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Chen · this prov…
Chen · this provider
80.5 MIPS pts
- Steven Hsu · hig…
Steven Hsu
80.5 MIPS pts
- Ala Elyaman · near
Ala Elyaman
80.5 MIPS pts
- Eboni Reed · near
Eboni Reed
80.5 MIPS pts
- Akash Bhakta · n…
Akash Bhakta
80.5 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
David Chen, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
81 ≥ 30th percentile 30% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where David Chen, MD sits
This provider among physical medicine & rehabilitation physician peers
Across the 2,483 physical medicine & rehabilitation physician providers who report both Medicare Part D prescribing and a MIPS quality score, David Chen, MD writes more Part D claims than 83% of them and scores higher on MIPS quality than 41% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one physical medicine & rehabilitation physician peer from a representative sample of 60; the gold marker is David Chen, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
David Chen, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 David Chen, MD?
Near national averagePrimary specialty
Physical Medicine & Rehabilitation Physician
Medicare Part D claims
1,377 76% vs specialty avg
MIPS final score
80.5/100 3 pts vs avg
Specialty distribution in Illinois
How Physical Medicine & Rehabilitation Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
David Chen, MD's 2023 MIPS final score plotted against the Physical Medicine & Rehabilitation Physician national average
- MIPS Final Score
- 80.5/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1497769095 |
|---|---|
| Specialty | Physical Medicine & Rehabilitation Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/28/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
80.5194
Final Score
Measured-score avg: 83.5
84.4735
Quality
26.2261
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where David 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.
Medical Services Ric
Chicago, IL
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 - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to David Chen, MD. To verify David Chen, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
David Chen, MD - brand share 3.0%
Physical Medicine & Rehabilitation Physician average
3% brand-name claims vs 97% generic, on 1,377 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.
1,377
Total Claims
$81K
Total Drug Cost
133
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,682
- Total Day Supply
- 47,809
- Brand vs Generic
- 3% brand / 97% generic
- Brand Drug Cost
- $36K
- Generic Drug Cost
- $45K
- Opioid Claims
- 404 (29.3% rate)
- Antibiotic Claims
- 26
Patient Demographics
- Average Patient Age
- 54.5 years
- Avg HCC Risk Score
- 2.08
- Gender Split
- 20% female / 80% male
- Age Distribution
- <65: 97, 65-74: 28, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Chen, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Baclofen
Baclofen
270 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
221 claims
- Gabapentin
Gabapentin
167 claims
- Diazepam
Diazepam
133 claims
- Alprazolam 53
Alprazolam
53 claims
- Pregabalin 53
Pregabalin
53 claims
- Tramadol Hcl 51
Tramadol Hcl
51 claims
- Zolpidem Tartrate 46
Zolpidem Tartrate
46 claims
| Drug | Claims |
|---|---|
| Baclofen | 270 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 221 |
| Gabapentin | 167 |
| Diazepam | 133 |
| Alprazolam | 53 |
| Pregabalin | 53 |
| Tramadol Hcl | 51 |
| Zolpidem Tartrate | 46 |
| Oxycodone Hcl | 45 |
| Tizanidine Hcl | 37 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Physical Medicine & Rehabilitation Physician in IL →
All providers in Illinois →
Compare specialties →
Physical Medicine & Rehabilitation Physician Overview
How David Chen, MD fits within the Physical Medicine & Rehabilitation Physician landscape nationally.
15,336
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider
David Chen, MD's 1,377 claims are above the specialty average of 781.
Nationwide Physical Medicine & Rehabilitation Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chen, both outside Illinois so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (80.5 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Physical Medicine & Rehabilitation Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Chen.
One of 654 Physical Medicine & Rehabilitation Physician providers enrolled in Illinois, 5 are shown here.
Dr. Brian Abarbanel
MD
Chicago, IL
Dr. Mahmoud Abdel
MD
Oak Lawn, IL
Elizabeth Abe
Peoria, IL
Dr. Sol Abreu Sosa
MD
Chicago, IL
Dr. Roy Adair
MD
Oak Lawn, IL
Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is David Chen, MD's specialty? ▼
David Chen, MD specializes in Physical Medicine & Rehabilitation Physician and practices in Chicago, Illinois. Credentials: MD.
How much does David Chen, MD prescribe under Medicare Part D? ▼
In 2023, David Chen, MD wrote 1,377 Medicare Part D claims totaling $81K in drug costs for 133 beneficiaries.
What is David Chen, MD's Medicare quality score? ▼
David Chen, MD has a CMS MIPS Final Score of 80.5/100 (Quality: 84.5, Cost: 26.2). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is David Chen, MD located? ▼
David Chen, MD is located at 355 E ERIE ST, Chicago, IL, 60611. Phone: (312) 238-1000.
What is David Chen, MD's NPI number? ▼
David Chen, MD's National Provider Identifier (NPI) is 1497769095, issued on 07/28/2006.
Does David Chen, MD prescribe more brand-name or generic drugs? ▼
David Chen, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $36K in brand drug costs.
Does David Chen, MD prescribe opioids? ▼
Yes, David Chen, MD had 404 opioid claims in 2023 with an opioid prescribing rate of 29.3%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US? ▼
There are 15,336 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does David Chen, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Chen, MD's most frequently prescribed drugs include Baclofen, Hydrocodone-Acetaminophen, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Chen, MD accept Medicare? ▼
David Chen, MD appears in CMS Medicare data with 1,377 Part D claims and 133 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Chen, MD's credentials? ▼
David Chen, MD's NPI is 1497769095 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
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.