2026 NPPES data Orthopaedic Hand Surgery Physician NPI 1609838291 MD
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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.

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
468
Medicare Part D claims · 308 beneficiaries · Orthopaedic Hand Surgery Physician avg: 180
MIPS score
79.5/100
▼ 4 pts below national avg 83.1 · Above neutral
Industry payments
$164.16
9 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

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

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 23James Dietz, MD-Part D claim volume, percentile in specialty: 91 · MIPS quality, percentile: 50
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.

Board certification likely (heuristic, not verified)

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 average

NPI registry status

Active

Issued 04/06/2006

NPI 1609838291

Primary specialty

Orthopaedic Hand Surgery Physician

Niche

1,962 US NPIs in this specialty

Medicare Part D claims

468 160% vs specialty avg

2023 prescription claims

Specialty avg: 180

MIPS final score

79.5/100 3.6 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Michigan

How Orthopaedic Hand Surgery Physician compares to other specialties among Michigan providers

Michigan providers
Behavior Technician - 21.4%Behavior Technician21.4%Clinical Social Worker - 5.8%Clinical Social Worker5.8%Student in an Organized Health Care Education/Training Program - 3.6%Student in an Organized Health Care Education/Training Program3.6%Physical Therapist - 3.4%Physical Therapist3.4%Social Worker - 3.4%Social Worker3.4%Pharmacist - 3%Pharmacist3%Orthopaedic Hand Surgery Physician - 0%Orthopaedic Hand Surgery Physician0%
Largest specialties in Michigan (% of in-state providers)

Medicare quality performance, MIPS

James Dietz, MD's 2023 MIPS final score plotted against the Orthopaedic Hand Surgery Physician national average

Near 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

0%100%National avg83%79.5%
MIPS final score (Orthopaedic Hand Surgery Physician) - 79.5/100 vs national avg 83.1
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

23829 LITTLE MACK AVE
Saint Clair Shores, MI 48080

Provider Details

NPI 1609838291
Specialty Orthopaedic Hand Surgery Physician
Credentials MD
Gender Male
NPI Issued 04/06/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.5404
Final Score
Avg: 83.1
88.6422
Quality
52.624
Cost

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.

Nokomis Physical Therapy LLC
Nokomis, FL
St. Clair Orthopaedics And Sports Medicine PC
Saint Clair Shores, MI

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.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

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.

468
Total Claims
$2K
Total Drug Cost
308
Medicare Beneficiaries

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

1,962
Orthopaedic Hand Surgery Physician Providers in US
52
States with Orthopaedic Hand Surgery Physician
180
Avg Claims per Provider

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.

Frequently Asked Questions

What is James Dietz, MD's specialty?
James Dietz, MD specializes in Orthopaedic Hand Surgery Physician and practices in Saint Clair Shores, Michigan. Credentials: MD.
How much does James Dietz, MD prescribe under Medicare Part D?
In 2023, James Dietz, MD wrote 468 Medicare Part D claims totaling $2K in drug costs for 308 beneficiaries.
What is James Dietz, MD's Medicare quality score?
James Dietz, MD has a CMS MIPS Final Score of 79.5/100 (Quality: 88.6, Cost: 52.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is James Dietz, MD located?
James Dietz, MD is located at 23829 LITTLE MACK AVE, Saint Clair Shores, MI, 48080. Phone: (586) 773-1300.
What is James Dietz, MD's NPI number?
James Dietz, MD's National Provider Identifier (NPI) is 1609838291, issued on 04/06/2006.
Does James Dietz, MD prescribe opioids?
Yes, James Dietz, MD had 371 opioid claims in 2023 with an opioid prescribing rate of 79.3%.
How many Orthopaedic Hand Surgery Physician providers are there in the US?
There are 1,962 Orthopaedic Hand Surgery Physician providers across 52 states in the US. The average Orthopaedic Hand Surgery Physician provider writes 180 Medicare Part D claims per year.
What drugs does James Dietz, MD prescribe most often?
Based on 2023 Medicare Part D data, James Dietz, MD's most frequently prescribed drugs include Acetaminophen-Codeine, Hydrocodone-Acetaminophen, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Dietz, MD accept Medicare?
James Dietz, MD appears in CMS Medicare data with 468 Part D claims and 308 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Dietz, MD's credentials?
James Dietz, MD's NPI is 1609838291 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

Compiled from official public sources by the PlainDoctor editorial team.