Patrick Cahill, M.D.
Infectious Disease Physician in Norwich, Connecticut. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,292 in Infectious Disease 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
Patrick Cahill, M.D. reported a CMS MIPS final score of 85.7/100 - above the 83.1 national average - and filed 1,906 Medicare Part D claims in 2023.
- 85.7/100
- MIPS score · +3 vs avg
- 2K
- Part D claims, 2023
- 65%
- 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.
Patrick Cahill, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
86 49th percentile higher than 49% 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 Patrick Cahill, M.D. sits
This provider among infectious disease physician peers
Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Patrick Cahill, M.D. writes more Part D claims than 91% of them and scores higher on MIPS quality than 54% - 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 infectious disease physician peer from a representative sample of 60; the gold marker is Patrick Cahill, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
Patrick Cahill, M.D. 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 Patrick Cahill, M.D.?
High performer (top quartile)Primary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Connecticut
How Infectious Disease Physician compares to other specialties among Connecticut providers
Infectious Disease Physician ranks #71 among Connecticut's specialties (0.2% of in-state providers)
Each bar is a specialty's share of the Connecticut provider total, by primary NUCC taxonomy. The highlighted bar is Infectious Disease Physician; the long tail of smaller specialties is omitted for legibility.
Medicare quality performance, MIPS
Patrick Cahill, M.D.'s 2023 MIPS final score plotted against the Infectious Disease Physician national average
- MIPS Final Score
- 85.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Infectious Disease Physician) - 85.7/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Specialty volume Infectious Disease Physician US NPIs
85.7/100 MIPS final score - 2.6 pts above the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Infectious Disease Physician. Quality dim: 74.1.
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).
Patrick Cahill, M.D. appears in the CMS NPPES registry as a Infectious Disease Physician provider holding M.D. credentials at 164 OTROBANDO AVENUE, Norwich, CT, 06360, with a listed phone of (860) 886-8545. NPI 1578884698 was issued on 06/14/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Cahill most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 1,906 prescription claims written by this provider, covering 151 Medicare beneficiaries and totaling roughly $1.8 million in drug spend, split 35% brand-name and 65% generic by claim count, with an opioid prescribing rate of 1.5%. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.7/100 for the 2023 performance year (Quality 74.1), compared with the national average of 83.1.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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 | 1578884698 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/14/2010 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Patrick Cahill, M.D.'s current license status, disciplinary history, and board certifications with the Connecticut Department of Public Health in Connecticut before relying on this page for a clinical or care decision.
How we sourced this profile
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 Patrick Cahill, M.D. 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 Patrick Cahill, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$465
Largest payer
Gilead Sciences, 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
35% brand-name claims vs 65% generic, on 1,906 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.
Prescribing Breakdown
- 30-Day Fills
- 2,391
- Total Day Supply
- 66,998
- Brand vs Generic
- 35% brand / 65% generic
- Brand Drug Cost
- $1.8M
- Generic Drug Cost
- $53K
- Opioid Claims
- 28 (1.5% rate)
- Antibiotic Claims
- 118
Patient Demographics
- Average Patient Age
- 64.3 years
- Avg HCC Risk Score
- 2.03
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 57, 65-74: 68, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Patrick Cahill, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Biktarvy
Biktarvy
96 claims
- Dovato
Dovato
61 claims
- Pravastatin Sodium
Pravastatin Sodium
56 claims
- Atorvastatin Calcium
Atorvastatin Calcium
54 claims
- Juluca
Juluca
54 claims
- Triumeq
Triumeq
44 claims
- Amlodipine Besylate
Amlodipine Besylate
40 claims
- Hydroxyzine Hcl
Hydroxyzine Hcl
39 claims
| Drug | Claims |
|---|---|
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 96 |
| Dovato Dolutegravir Sodium/Lamivudine | 61 |
| Pravastatin Sodium | 56 |
| Atorvastatin Calcium | 54 |
| Juluca Dolutegravir/Rilpivirine | 54 |
| Triumeq Abacavir/Dolutegravir/Lamivudi | 44 |
| Amlodipine Besylate | 40 |
| Hydroxyzine Hcl | 39 |
| Tivicay Dolutegravir Sodium | 38 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 37 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How Patrick Cahill, M.D. fits within the Infectious Disease Physician landscape nationally.
Patrick Cahill, M.D.'s 1,906 claims are above the specialty average of 816.
Nearby Infectious Disease Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Cahill.
Compare Infectious Disease 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Infectious Disease 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
- 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