NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1609938067 MD
Verify on CMS → Joshua Field, MD
Hematology (Internal Medicine) Physician in Milwaukee, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,436 in Hematology (Internal Medicine) 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
2K
Medicare Part D claims · 183 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
MIPS score
80.5/100
▼ 3 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Joshua Field, MD reported a CMS MIPS final score of 80.5/100 - below the 83.1 national average - and filed 1,674 Medicare Part D claims in 2023.
- 80.5/100
- MIPS score · -3 vs avg
- 2K
- 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.
Joshua Field, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
81 33rd percentile higher than 33% 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 Joshua Field, MD sits
This provider among hematology (internal medicine) physician peers
Across the 570 hematology (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Joshua Field, MD writes more Part D claims than 90% of them and scores higher on MIPS quality than 42% - placing this provider in the high-volume, lower-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 hematology (internal medicine) physician peer from a representative sample of 60; the gold marker is Joshua Field, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Joshua Field, 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 Joshua Field, MD?
Near national averagePrimary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
1,674 142% vs specialty avg
MIPS final score
80.5/100 2.6 pts vs avg
Specialty distribution in Wisconsin
How Hematology (Internal Medicine) Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Joshua Field, MD's 2023 MIPS final score plotted against the Hematology (Internal Medicine) Physician national average
- MIPS Final Score
- 80.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology (Internal Medicine) Physician) - 80.5/100 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).
Joshua Field, MD appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding MD credentials at 9200 W WISCONSIN AVE, Milwaukee, WI, 53226, with a listed phone of (414) 805-6800. NPI 1609938067 was issued on 12/14/2006.
Medicare Part D records for calendar year 2023 show 1,674 prescription claims written by this provider, covering 183 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, with an opioid prescribing rate of 56.6%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 80.5/100 for the 2023 performance year (Quality 66.2, Cost 68.6), compared with the national average of 83.1.
Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 enrolled providers across 50 states and an average of 693 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 | 1609938067 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/14/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
80.4671
Final Score
Avg: 83.1
66.2426
Quality
68.6477
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Joshua Field, 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.
The Medical College OF Wisconsin Inc
New Berlin, WI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,674
Total Claims
$1.4M
Total Drug Cost
183
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,975
- Total Day Supply
- 39,533
- Generic Drug Cost
- $112K
- Opioid Claims
- 947 (56.6% rate)
Patient Demographics
- Average Patient Age
- 60.9 years
- Avg HCC Risk Score
- 3.21
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 83, 65-74: 57, 75-84: 29, 85+: 14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joshua Field, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
566 claims
- Eliquis 176
Eliquis
176 claims
- Methadone Hcl 139
Methadone Hcl
139 claims
- Hydroxyurea 89
Hydroxyurea
89 claims
- Xarelto 78
Xarelto
78 claims
- Morphine Sulfate Er 65
Morphine Sulfate Er
65 claims
- Oxycontin 65
Oxycontin
65 claims
- Warfarin Sodium 59
Warfarin Sodium
59 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 566 |
| Eliquis Apixaban | 176 |
| Methadone Hcl | 139 |
| Hydroxyurea | 89 |
| Xarelto Rivaroxaban | 78 |
| Morphine Sulfate Er Morphine Sulfate | 65 |
| Oxycontin Oxycodone Hcl | 65 |
| Warfarin Sodium | 59 |
| Morphine Sulfate | 58 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 42 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in WI →
All providers in Wisconsin →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Joshua Field, MD fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider
Joshua Field, MD's 1,674 claims are above the specialty average of 693.
Nearby Hematology (Internal Medicine) Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Field.
Dr. David Blake
M.D.
New Berlin, WI
Dr. Wayne Bottner
MD
La Crosse, WI
Dr. Julie Chang
M.D.
Madison, WI
Dr. Michael Deininger
MD
Milwaukee, WI
Dr. Zhubin Gahvari
M.D.
Madison, WI
Compare Hematology (Internal Medicine) 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology (Internal Medicine) 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
What is Joshua Field, MD's specialty? ▼
Joshua Field, MD specializes in Hematology (Internal Medicine) Physician and practices in Milwaukee, Wisconsin. Credentials: MD.
How much does Joshua Field, MD prescribe under Medicare Part D? ▼
In 2023, Joshua Field, MD wrote 1,674 Medicare Part D claims totaling $1.4M in drug costs for 183 beneficiaries.
What is Joshua Field, MD's Medicare quality score? ▼
Joshua Field, MD has a CMS MIPS Final Score of 80.5/100 (Quality: 66.2, Cost: 68.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Joshua Field, MD located? ▼
Joshua Field, MD is located at 9200 W WISCONSIN AVE, Milwaukee, WI, 53226. Phone: (414) 805-6800.
What is Joshua Field, MD's NPI number? ▼
Joshua Field, MD's National Provider Identifier (NPI) is 1609938067, issued on 12/14/2006.
Does Joshua Field, MD prescribe opioids? ▼
Yes, Joshua Field, MD had 947 opioid claims in 2023 with an opioid prescribing rate of 56.6%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,436 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
What drugs does Joshua Field, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Joshua Field, MD's most frequently prescribed drugs include Oxycodone Hcl, Eliquis, Methadone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joshua Field, MD accept Medicare? ▼
Joshua Field, MD appears in CMS Medicare data with 1,674 Part D claims and 183 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joshua Field, MD's credentials? ▼
Joshua Field, MD's NPI is 1609938067 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.