NPI registry status
Active
2026 NPPES data Vascular Neurology Physician NPI 1366577983 MD
Verify on CMS → Jeremy Fields, MD
Vascular Neurology Physician in Portland, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 561 in Vascular Neurology 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
58
Medicare Part D claims · 36 beneficiaries · Vascular Neurology Physician avg: 378
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.2/100
▲ 3 pts above national avg 83.1 · Above neutral
Industry payments
$19.3K
52 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Jeremy Fields, MD reported a CMS MIPS final score of 86.2/100 - above the 83.1 national average - and filed 58 Medicare Part D claims in 2023.
- 86.2/100
- MIPS score · +3 vs avg
- 58
- Part D claims, 2023
- 74%
- 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.
Jeremy Fields, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
86 Top 48% higher than 52% 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 Jeremy Fields, MD sits
This provider among vascular neurology physician peers
Across the 141 vascular neurology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Jeremy Fields, MD writes more Part D claims than 27% of them and scores higher on MIPS quality than 48% - placing this provider in the lower-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 vascular neurology physician peer from a representative sample of 60; the gold marker is Jeremy Fields, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Jeremy Fields, 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 Jeremy Fields, MD?
High performer (top quartile)Primary specialty
Vascular Neurology Physician
Medicare Part D claims
58 85% vs specialty avg
MIPS final score
86.2/100 3.1 pts vs avg
Specialty distribution in Oregon
How Vascular Neurology Physician compares to other specialties among Oregon providers
Medicare quality performance, MIPS
Jeremy Fields, MD's 2023 MIPS final score plotted against the Vascular Neurology Physician national average
- MIPS Final Score
- 86.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Vascular Neurology Physician) - 86.2/100 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).
Jeremy Fields, MD appears in the CMS NPPES registry as a Vascular Neurology Physician provider holding MD credentials at 3181 SW SAM JACKSON PARK RD # L-226, Portland, OR, 97239, with a listed phone of (503) 418-1472. NPI 1366577983 was issued on 02/22/2007.
Medicare Part D records for calendar year 2023 show 58 prescription claims written by this provider, covering 36 Medicare beneficiaries and totaling roughly $12K in drug spend, split 26% brand-name and 74% generic by claim count, with an opioid prescribing rate of 20.7%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.2/100 for the 2023 performance year (Quality 95.6, Cost 49.3), compared with the national average of 83.1.
Vascular Neurology Physician is a narrow specialty nationwide, with 561 enrolled providers across 49 states and an average of 378 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 | 1366577983 |
|---|---|
| Specialty | Vascular Neurology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/22/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.2294
Final Score
Avg: 83.1
95.6409
Quality
49.3205
Cost
99
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Jeremy Fields, 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.
Kaiser Foundation Health Plan OF The Northwest
Clackamas, OR
Legacy Emanuel Hospital And Health Center
Portland, OR
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 Jeremy Fields, MD. Source: openpaymentsdata.cms.gov.
Total received
$19.3K
Largest payer
MicroVention, 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.
Brand vs generic prescribing mix · Above average
Jeremy Fields, MD - brand share 26.0%
Vascular Neurology Physician average
26% brand-name claims vs 74% generic, on 58 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.
58
Total Claims
$12K
Total Drug Cost
36
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 118
- Total Day Supply
- 3,068
- Brand vs Generic
- 26% brand / 74% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $771
- Opioid Claims
- 12 (20.7% rate)
Patient Demographics
- Average Patient Age
- 71.2 years
- Avg HCC Risk Score
- 1.69
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Vascular Neurology Physician Overview
How Jeremy Fields, MD fits within the Vascular Neurology Physician landscape nationally.
561
Vascular Neurology Physician Providers in US
49
States with Vascular Neurology Physician
378
Avg Claims per Provider
Jeremy Fields, MD's 58 claims are below the specialty average of 378.
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 Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Vascular Neurology 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Jeremy Fields, MD's specialty? ▼
Jeremy Fields, MD specializes in Vascular Neurology Physician and practices in Portland, Oregon. Credentials: MD.
How much does Jeremy Fields, MD prescribe under Medicare Part D? ▼
In 2023, Jeremy Fields, MD wrote 58 Medicare Part D claims totaling $12K in drug costs for 36 beneficiaries.
What is Jeremy Fields, MD's Medicare quality score? ▼
Jeremy Fields, MD has a CMS MIPS Final Score of 86.2/100 (Quality: 95.6, Cost: 49.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Jeremy Fields, MD located? ▼
Jeremy Fields, MD is located at 3181 SW SAM JACKSON PARK RD # L-226, Portland, OR, 97239. Phone: (503) 418-1472.
What is Jeremy Fields, MD's NPI number? ▼
Jeremy Fields, MD's National Provider Identifier (NPI) is 1366577983, issued on 02/22/2007.
Does Jeremy Fields, MD prescribe more brand-name or generic drugs? ▼
Jeremy Fields, MD's prescribing is 26% brand-name and 74% generic drugs by claim count, with $11K in brand drug costs.
Does Jeremy Fields, MD prescribe opioids? ▼
Yes, Jeremy Fields, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 20.7%.
How many Vascular Neurology Physician providers are there in the US? ▼
There are 561 Vascular Neurology Physician providers across 49 states in the US. The average Vascular Neurology Physician provider writes 378 Medicare Part D claims per year.
What drugs does Jeremy Fields, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Jeremy Fields, MD's most frequently prescribed drugs include Clopidogrel. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jeremy Fields, MD accept Medicare? ▼
Jeremy Fields, MD appears in CMS Medicare data with 58 Part D claims and 36 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jeremy Fields, MD's credentials? ▼
Jeremy Fields, MD's NPI is 1366577983 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.
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.