James Martin Chamberlain, M.D.
James Martin Chamberlain is a Family Medicine specialist based in Queenstown, MD with over 41 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
James Martin Chamberlain, M.D. has practiced family medicine for 41+ years, working in group practice. A University of Maryland School of Medicine graduate since 1985, he brings 41+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and arthritis. CMS MIPS quality score: 89.43/100 (2023).
At a glance
- Prescribes opioids less than 45% of reporting doctors in Maryland
- Uses generic medications more than 55% of reporting doctors in Maryland
- Federal MIPS score higher than 83% of MIPS-scored doctors in Maryland
- Virtual visits available — no app or travel required
Older · 5283dNPPES updated 2011-12-05 · verify NPI on CMS · Verify license at Maryland Board of Physicians
Contact & Location
Practice Location
125 Shoreway Dr Suite 120, Queenstown, MD 21658-1666
How Does This Doctor Compare?
Based on Medicare data, this doctor scores better than 83% of doctors in Maryland on federal quality measures, prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
MIPS Score
202389.43/100
Maryland avg: 77.8 · US avg: 83.6
✓ Higher than most doctors nationally(+5.8 pts)
Better than 83% of MIPS-scored doctors in MarylandHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better0.71%
Maryland avg: 4.4 · US avg: 5.1
✓ Higher than most doctors nationally(-4.4 pts)
Typical range among reporting doctors in Maryland0.71% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better88.8%
Maryland avg: 83.4 · US avg: 82.8
✓ Higher than most doctors nationally(+6 pts)
Typical range among reporting doctors in MarylandHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
694
Unique beneficiaries
High volumePrescription Recipients
688
Patients prescribed
Prescriptions Written
8,561
Total claims
Total Medicare drug cost: $940k
Percentile rankings compared against 2,391 reporting peers in Maryland.
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%↓ Fewer patients than average (-8%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-5%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-12%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.1k received from industry
57 transactions reported in 2024 ·Moderate 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 2024, attributed to James Martin Chamberlain's NPI.
Patient Reviews
No patient reviews yet. If you've seen James Martin Chamberlain, your feedback helps other patients.
Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →
Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1985
University of Maryland School of Medicine
41 years in practice
Senior practitioner
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Taxonomy: 207Q00000X
Education & Training
University of Maryland School of Medicine (Class of 1985)
Mailing address
1111 Benfield Blvd Suite 200, Millersville, MD 21108-3002
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 490018
View hospital on Medicare Care CompareVirtual Family Medicine Care With James Martin Chamberlain
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with James Martin Chamberlain for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Queenstown 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 James Martin Chamberlain
NPI records show Dr. Chamberlain as active with telehealth listed in Queenstown, MD. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (410) 827-4001.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
Is this your profile?
Verify credentials, update practice details, and manage telehealth.
Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact James Martin Chamberlain
Practice Location
125 Shoreway Dr Suite 120, Queenstown, MD 21658-1666
Mailing Address
1111 Benfield Blvd Suite 200, Millersville, MD 21108-3002
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers