Elson M Haas, M.D.
Elson M Haas is an Allergy & Immunology specialist based in San Rafael, CA with over 54 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Elson M Haas, M.D. has practiced allergy & immunology for 54+ years, working in independent practice. A University of Michigan Medical School graduate since 1972, he brings 54+ years of experience. CMS Medicare data shows his patients commonly have high cholesterol, hypertension, and arthritis.
At a glance
- Uses generic medications more than 74% of reporting 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
25 Mitchell Blvd Suite 8, San Rafael, CA 94903-2007
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
MIPS Score
202325/100
California avg: 78.6 · US avg: 83.6
⚠ Lower than most doctors nationally(-58.6 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better8.66%
California avg: 5.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+3.6 pts)
8.66% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better91.2%
California avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+8.4 pts)
Better than 74% of reporting doctors in CaliforniaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
613
Unique beneficiaries
High volumePrescription Recipients
180
Patients prescribed
Prescriptions Written
982
Total claims
Total Medicare drug cost: $39k
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%↓ Fewer patients than average (-4%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-29%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-12%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$194 received from industry
4 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 Elson M Haas's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1972
University of Michigan Medical School
54 years in practice
Senior practitioner
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Taxonomy: 207K00000X
Education & Training
University of Michigan Medical School (Class of 1972)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 190026
View hospital on Medicare Care CompareVirtual Allergy & Immunology Care With Elson M Haas
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Elson M Haas for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to San Rafael 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 Elson M Haas
NPI records show Dr. Haas as active with telehealth listed in San Rafael, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (415) 472-2343.
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 Elson M Haas
Practice Location
25 Mitchell Blvd Suite 8, San Rafael, CA 94903-2007
Mailing Address
25 Mitchell Blvd Suite 8, San Rafael, CA 94903-2007
This is a provider directory. Contact the office directly to schedule appointments.
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