2026 NPPES data Orthopaedic Surgery Physician NPI 1043428212 M.D.
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MICHAEL CHEN, M.D.

Orthopaedic Surgery Physician in CINCINNATI, Ohio. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
166
Medicare Part D claims · 93 beneficiaries · Orthopaedic Surgery Physician avg: 324
What the federal data reveals: MICHAEL CHEN, M.D. is a Orthopaedic Surgery Physician ([object Object]) practicing in CINCINNATI, Ohio with a Medicare Part D prescribing footprint of 166 claims across 93 beneficiaries .

What stands out: MICHAEL CHEN, M.D. filed 166 Medicare Part D claims in 2023 across CINCINNATI, Ohio. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MICHAEL CHEN, M.D. 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).

MICHAEL CHEN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/19/2007

NPI 1043428212

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Medicare Part D claims

166 49% vs specialty avg

2023 prescription claims

Specialty avg: 324

Specialty distribution in Ohio

How Orthopaedic Surgery Physician compares to other specialties among Ohio providers

Ohio providers

Orthopaedic Surgery Physician share within Ohio

1. Orthopaedic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopaedic Surgery Physician share within Ohio

Specialty board-certification context

Estimated specialty board-certified rate — Orthopaedic Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Orthopaedic Surgery Physician ABMS/AOA estimate

Est. board-certified rate (Orthopaedic Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Orthopaedic Surgery Physician) — ABMS / AOA estimate

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, M.D. is a Orthopaedic Surgery Physician provider practicing in CINCINNATI, Ohio, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1043428212. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MICHAEL CHEN, M.D. appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding M.D. credentials at 3301 MERCY HEALTH BLVD STE 450, CINCINNATI, OH, 45211, with a listed phone of (513) 981-6784. NPI 1043428212 was issued on 05/19/2007. 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 166 prescription claims written by this provider, covering 93 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 41.6%. 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.

Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 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

3301 MERCY HEALTH BLVD STE 450
CINCINNATI, OH 45211

Provider Details

NPI 1043428212
Specialty Orthopaedic Surgery Physician
Credentials M.D.
Gender Male
NPI Issued 05/19/2007

Hospital and facility affiliations

Facilities where MICHAEL CHEN, M.D. 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.

MERCY HEALTH PHYSICIANS CINCINNATI SPECIALTY CARE LLC
CINCINNATI, OH

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 — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to MICHAEL CHEN, M.D.. To verify MICHAEL CHEN, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio 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.

166
Total Claims
$1K
Total Drug Cost
93
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
192
Total Day Supply
2,672
Brand Drug Cost
$0
Generic Drug Cost
$1K
Opioid Claims
69 (41.6% rate)

Patient Demographics

Average Patient Age
66.3 years
Avg HCC Risk Score
1.41
Gender Split
63% female / 37% male
Age Distribution
<65: 29, 65-74: 45, 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.

Drug Claims
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
40
Promethazine Hcl
29
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
18
Methylprednisolone
12
Meloxicam
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Orthopaedic Surgery Physician Overview

How MICHAEL CHEN, M.D. fits within the Orthopaedic Surgery Physician landscape nationally.

25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider

MICHAEL CHEN, M.D.'s 166 claims are below the specialty average of 324.

Nearby Orthopaedic Surgery Physician Providers in Ohio

Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as CHEN.

Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL CHEN, M.D.'s specialty?
MICHAEL CHEN, M.D. specializes in Orthopaedic Surgery Physician and practices in CINCINNATI, Ohio. Credentials: M.D..
How much does MICHAEL CHEN, M.D. prescribe under Medicare Part D?
In 2023, MICHAEL CHEN, M.D. wrote 166 Medicare Part D claims totaling $1K in drug costs for 93 beneficiaries.
Where is MICHAEL CHEN, M.D. located?
MICHAEL CHEN, M.D. is located at 3301 MERCY HEALTH BLVD STE 450, CINCINNATI, OH, 45211. Phone: (513) 981-6784.
What is MICHAEL CHEN, M.D.'s NPI number?
MICHAEL CHEN, M.D.'s National Provider Identifier (NPI) is 1043428212, issued on 05/19/2007.
Does MICHAEL CHEN, M.D. prescribe opioids?
Yes, MICHAEL CHEN, M.D. had 69 opioid claims in 2023 with an opioid prescribing rate of 41.6%.
How many Orthopaedic Surgery Physician providers are there in the US?
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
What drugs does MICHAEL CHEN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL CHEN, M.D.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Promethazine Hcl, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL CHEN, M.D. accept Medicare?
MICHAEL CHEN, M.D. appears in CMS Medicare data with 166 Part D claims and 93 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL CHEN, M.D.'s credentials?
MICHAEL CHEN, M.D.'s NPI is 1043428212 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

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