John T Armstrong, MD
Gynecology Obstetrics & Gynecology
John T Armstrong is a Gynecology Obstetrics & Gynecology specialist based in Napa, CA with over 50 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
John T Armstrong, MD has been part of the Napa medical community since 2006 in group practice. A Texas Tech University Health Science Center School of Medicine graduate since 1976, he brings 50+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and arthritis. CMS MIPS quality score: 75/100 (2023).
At a glance
- Federal MIPS score higher than 21% of MIPS-scored doctors in California
- Virtual visits available — no app or travel required
Older · 6894dNPPES updated 2007-07-08 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
3434 Villa Ln Suite 360, Napa, CA 94558
How Does This Doctor Compare?
MIPS Score
202375/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-8.6 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Medicare Patients
212
Unique beneficiaries
Standard volumePrescription Recipients
133
Patients prescribed
Prescriptions Written
599
Total claims
Total Medicare drug cost: $179k
Percentile rankings compared against 9,360 reporting peers in California.
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 High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-14%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-3%) — less common here
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+16%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$159 received from industry
8 transactions reported in 2024 ·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 2024, attributed to John T Armstrong's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1976
Texas Tech University Health Sciences Center School of Medicine
50 years in practice
Senior practitioner
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions.
Taxonomy: 207VG0400X
Education & Training
Texas Tech University Health Science Center School of Medicine (Class of 1976)
Primary hospital affiliation: Psychiatric
CMS Certification Number: 184017
View hospital on Medicare Care CompareVirtual Obstetrics & Gynecology Care With John T Armstrong
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John T Armstrong for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Napa 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 John T Armstrong
Dr. Armstrong is listed as active in the NPI registry with telehealth listed in Napa, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (707) 257-4317.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact John T Armstrong
Practice Location
3434 Villa Ln Suite 360, Napa, CA 94558
Mailing Address
3434 Villa Ln Suite 360, Napa, CA 94558
This is a provider directory. Contact the office directly to schedule appointments.
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