NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1598787863 MD
Verify on CMS → James Cahill, MD
Obstetrics & Gynecology Physician in Springfield, Vermont.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 44,326 in Obstetrics & Gynecology 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
38
Medicare Part D claims · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
33.3/100
▼ 50 pts below national avg 83.1 · Below average
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
James Cahill, MD reported a CMS MIPS final score of 33.3/100 - below the 83.1 national average - and filed 38 Medicare Part D claims in 2023.
- 33.3/100
- MIPS score · -50 vs avg
- 38
- Part D claims, 2023
- 66%
- 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.
James Cahill, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
33 3rd percentile higher than 3% 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 Cahill, MD sits
This provider among obstetrics & gynecology physician peers
Across the 7,413 obstetrics & gynecology physician providers who report both Medicare Part D prescribing and a MIPS quality score, James Cahill, MD writes more Part D claims than 18% of them and scores higher on MIPS quality than 1% - 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 obstetrics & gynecology physician peer from a representative sample of 60; the gold marker is James Cahill, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
James Cahill, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Cahill, MD?
Below national averagePrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
38 79% vs specialty avg
MIPS final score
33.3/100 49.8 pts vs avg
Specialty distribution in Vermont
How Obstetrics & Gynecology Physician compares to other specialties among Vermont providers
Medicare quality performance, MIPS
James Cahill, MD's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average
- MIPS Final Score
- 33.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Obstetrics & Gynecology Physician) - 33.3/100 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 Cahill, MD appears in the CMS NPPES registry as an Obstetrics & Gynecology Physician provider holding MD credentials at 268 RIVER ST, Springfield, VT, 05156, with a listed phone of (802) 885-1900. NPI 1598787863 was issued on 07/24/2006.
Medicare Part D records for calendar year 2023 show 38 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $31K in drug spend, split 34% brand-name and 66% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 33.3/100 for the 2023 performance year (Quality 8.5, Cost 60.7), compared with the national average of 83.1.
Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,326 enrolled providers across 56 states and an average of 179 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 | 1598787863 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/24/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
33.2678
Final Score
Avg: 83.1
8.5137
Quality
60.7124
Cost
0
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Above average
James Cahill, MD - brand share 34.0%
Obstetrics & Gynecology Physician average
34% brand-name claims vs 66% generic, on 38 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.
38
Total Claims
$31K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 38
- Total Day Supply
- 805
- Brand vs Generic
- 34% brand / 66% generic
- Brand Drug Cost
- $28K
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 56.7 years
- Avg HCC Risk Score
- 0.96
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 22 |
| Sublocade Buprenorphine | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Obstetrics & Gynecology Physician Overview
How James Cahill, MD fits within the Obstetrics & Gynecology Physician landscape nationally.
44,326
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider
James Cahill, MD's 38 claims are below the specialty average of 179.
Nearby Obstetrics & Gynecology Physician Providers in Vermont
Other clinicians with the same primary specialty enrolled in Vermont, drawn from the same CMS NPPES roster as Cahill.
Dr. Katherine Areson
MD
South Burlington, VT
Dr. Charles Ashley
M.D.
Burlington, VT
Dr. Kira Balkcom
M.D.
Rutland, VT
Dr. Mary Beerworth
M.D.
Rutland, VT
Dr. Jennifer Black
MD
Brattleboro, VT
Compare Obstetrics & Gynecology 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 Vermont medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obstetrics & Gynecology 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Vermont
Frequently Asked Questions
What is James Cahill, MD's specialty? ▼
James Cahill, MD specializes in Obstetrics & Gynecology Physician and practices in Springfield, Vermont. Credentials: MD.
How much does James Cahill, MD prescribe under Medicare Part D? ▼
In 2023, James Cahill, MD wrote 38 Medicare Part D claims totaling $31K in drug costs for N/A beneficiaries.
What is James Cahill, MD's Medicare quality score? ▼
James Cahill, MD has a CMS MIPS Final Score of 33.3/100 (Quality: 8.5, Cost: 60.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is James Cahill, MD located? ▼
James Cahill, MD is located at 268 RIVER ST, Springfield, VT, 05156. Phone: (802) 885-1900.
What is James Cahill, MD's NPI number? ▼
James Cahill, MD's National Provider Identifier (NPI) is 1598787863, issued on 07/24/2006.
Does James Cahill, MD prescribe more brand-name or generic drugs? ▼
James Cahill, MD's prescribing is 34% brand-name and 66% generic drugs by claim count, with $28K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 44,326 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does James Cahill, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, James Cahill, MD's most frequently prescribed drugs include Buprenorphine-Naloxone, Sublocade. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Cahill, MD accept Medicare? ▼
James Cahill, MD appears in CMS Medicare data with 38 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Cahill, MD's credentials? ▼
James Cahill, MD's NPI is 1598787863 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.