James Dietz, MD
Orthopaedic Hand Surgery Physician in Saint Clair Shores, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,962 in Orthopaedic Hand Surgery 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.
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
James Dietz, MD reported a CMS MIPS final score of 79.5/100 - below the 83.1 national average - and filed 468 Medicare Part D claims in 2023.
- 79.5/100
- MIPS score · -4 vs avg
- 468
- 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.
James Dietz, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
80 30th percentile higher than 30% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where James Dietz, MD sits
This provider among orthopaedic hand surgery physician peers
Across the 727 orthopaedic hand surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, James Dietz, MD writes more Part D claims than 91% of them and scores higher on MIPS quality than 50% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one orthopaedic hand surgery physician peer from a representative sample of 60; the gold marker is James Dietz, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
James Dietz, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 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 James Dietz, MD?
Near national averagePrimary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Michigan
How Orthopaedic Hand Surgery Physician compares to other specialties among Michigan providers
Orthopaedic Hand Surgery Physician ranks #183 among Michigan's specialties (0% of in-state providers)
Each bar is a specialty's share of the Michigan provider total, by primary NUCC taxonomy. The highlighted bar is Orthopaedic Hand Surgery Physician; the long tail of smaller specialties is omitted for legibility.
Medicare quality performance, MIPS
James Dietz, MD's 2023 MIPS final score plotted against the Orthopaedic Hand Surgery Physician national average
- MIPS Final Score
- 79.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Orthopaedic Hand Surgery Physician) - 79.5/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Cost dim CMS Cost category
- Specialty volume Orthopaedic Hand Surgery Physician US NPIs
79.5/100 MIPS final score - 3.6 pts below the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Orthopaedic Hand Surgery Physician. Quality dim: 88.6. Cost dim: 52.6.
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).
James Dietz, MD appears in the CMS NPPES registry as a Orthopaedic Hand Surgery Physician provider holding MD credentials at 23829 LITTLE MACK AVE, Saint Clair Shores, MI, 48080, with a listed phone of (586) 773-1300. NPI 1609838291 was issued on 04/06/2006.
Medicare Part D records for calendar year 2023 show 468 prescription claims written by this provider, covering 308 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 79.3%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.5/100 for the 2023 performance year (Quality 88.6, Cost 52.6), compared with the national average of 83.1.
Orthopaedic Hand Surgery Physician is a narrow specialty nationwide, with 1,962 enrolled providers across 52 states and an average of 180 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 | 1609838291 |
|---|---|
| Specialty | Orthopaedic Hand Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/06/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm James Dietz, MD's current license status, disciplinary history, and board certifications with the Michigan Department of Licensing and Regulatory Affairs in Michigan before relying on this page for a clinical or care decision.
How we sourced this profile
Profile fields combine the CMS NPPES monthly snapshot (provider directory, taxonomy, and address) with calendar-year 2023 Medicare Part D and MIPS public-use files when records are present. NPI 1609838291 is the unique 10-digit identifier CMS uses to link Dietz across every Medicare, Medicaid, and HIPAA-covered transaction. Read full methodology →
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Group practice
Hospital and facility affiliations
Facilities where James Dietz, 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.
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 James Dietz, MD. Source: openpaymentsdata.cms.gov.
Total received
$164
Largest payer
Endo USA, 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 - Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 - they are NOT specific to James Dietz, MD. To verify James Dietz, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
MI-BOM 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 Michigan 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.
Prescribing Breakdown
- 30-Day Fills
- 472
- Total Day Supply
- 2,705
- Brand Drug Cost
- $0
- Generic Drug Cost
- $2K
- Opioid Claims
- 371 (79.3% rate)
- Antibiotic Claims
- 62
Patient Demographics
- Average Patient Age
- 73.3 years
- Avg HCC Risk Score
- 1.14
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 20, 65-74: 165, 75-84: 100, 85+: 23
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What James Dietz, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Acetaminophen-Code…
Acetaminophen-Codeine
163 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
151 claims
- Cephalexin 60
Cephalexin
60 claims
- Oxycodone-Acetamin… 30
Oxycodone-Acetaminophen
30 claims
- Tramadol Hcl 27
Tramadol Hcl
27 claims
- Ibuprofen 13
Ibuprofen
13 claims
| Drug | Claims |
|---|---|
| Acetaminophen-Codeine Acetaminophen With Codeine | 163 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 151 |
| Cephalexin | 60 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 30 |
| Tramadol Hcl | 27 |
| Ibuprofen | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Orthopaedic Hand Surgery Physician Overview
How James Dietz, MD fits within the Orthopaedic Hand Surgery Physician landscape nationally.
James Dietz, MD's 468 claims are above the specialty average of 180.
Nearby Orthopaedic Hand Surgery Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Dietz.
Compare Orthopaedic Hand Surgery 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 Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Orthopaedic Hand Surgery 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
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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