Catharine Ann Arnold, MD
Rheumatology Internal Medicine
Also practices: INTERNAL MEDICINE
Catharine Ann Arnold, MD has practiced internal medicine for 40+ years, working in group practice. She graduated from Yale University School of Medicine in 1986 and has 40+ years of clinical experience. She regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data). CMS MIPS quality score: 93.28/100 (2023).
At a glance
- Prescribes opioids less than 22% of reporting doctors in Connecticut
- Uses generic medications more than 73% of reporting doctors in Connecticut
- Federal MIPS score higher than 63% of MIPS-scored doctors in Connecticut
- Virtual visits available — no app or travel required
Older · 6877dNPPES updated 2007-07-08 · verify on CMS
Contact & Location
Practice Location
385 Church St Suite 101, Guilford, CT 06437-2003
How Does This Doctor Compare?
Based on Medicare data, this doctor has an average quality score compared to other doctors in Connecticut, prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
MIPS Score
202393.28/100
Connecticut avg: 84.5 · US avg: 83.6
✓ Higher than most doctors nationally(+9.7 pts)
Average range among MIPS-scored doctors in ConnecticutHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better2.87%
Connecticut avg: 3.9 · US avg: 5.1
✓ Higher than most doctors nationally(-2.2 pts)
2.87% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better90.6%
Connecticut avg: 81.1 · US avg: 82.8
✓ Higher than most doctors nationally(+7.8 pts)
Better than 73% of reporting doctors in ConnecticutHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
460
Unique beneficiaries
Standard volumePrescription Recipients
928
Patients prescribed
Prescriptions Written
9,832
Total claims
Total Medicare drug cost: $2.06M
Percentile rankings compared against 1,825 reporting peers in Connecticut.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+22%) — a focus area for this doctor
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+15%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-5%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-8%) — less common here
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↑ More patients than average (+3%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$45 received from industry
3 transactions reported in 2018 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2018, attributed to Catharine Ann Arnold's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1986
Yale School of Medicine
40 years in practice
Senior practitioner
Rheumatologists treat autoimmune and inflammatory conditions including rheumatoid arthritis, lupus, psoriatic arthritis, gout, osteoarthritis, and vasculitis. They manage biologic therapies and joint-preserving treatments.
Taxonomy: 207RR0500X
Education & Training
Yale University School of Medicine (Class of 1986)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 450654
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Catharine Ann Arnold
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Catharine Ann Arnold for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Guilford required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Catharine Ann Arnold
NPI records show Dr. Arnold as active with telehealth listed in Guilford, CT. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (203) 453-0361.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2018 · CMS Physician Comparator. See Data Methodology.
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Contact Catharine Ann Arnold
Practice Location
385 Church St Suite 101, Guilford, CT 06437-2003
Mailing Address
385 Church St Suite 101, Guilford, CT 06437-2003
This is a provider directory. Contact the office directly to schedule appointments.
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