Hamsa N Subramanian, M.D.
Hamsa N Subramanian is an Allergy & Immunology specialist based in Saint Louis, MO with over 36 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Hamsa N Subramanian, M.D. practices as part of a group allergy & immunology specialist practice in Saint Louis, MO. With 36+ years of experience, she has been practicing in the Saint Louis area. Among her Medicare patients, common conditions include high cholesterol, hypertension, and arthritis (per CMS data).
Older · 1894dNPPES updated 2021-03-16 · verify NPI on CMS · Verify license at Missouri Board of Registration for the Healing Arts
Contact & Location
Practice Location
425 N New Ballas Rd Ste 203, Saint Louis, MO 63141-6814
How Does This Doctor Compare?
Generic Rx
↑ Higher = better64.9%
Missouri avg: 83.4 · US avg: 82.8
⚠ Lower than most doctors nationally(-17.9 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
220
Unique beneficiaries
Standard volumePrescription Recipients
274
Patients prescribed
Prescriptions Written
1,420
Total claims
Total Medicare drug cost: $904k
Percentile rankings compared against 912 reporting peers in Missouri.
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 (-2%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-8%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+7%) — a focus area for this doctor
A condition causing airway inflammation, wheezing, and difficulty breathing
US avg: 13.3%↑ More patients than average (+26%) — 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 (-2%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-4%) — 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.
$317 received from industry
13 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 Hamsa N Subramanian's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Board certified · Mar 15, 2021
Self-reported via NPPES
36 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
Virtual Allergy & Immunology Care With Hamsa N Subramanian
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Hamsa N Subramanian for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Saint Louis 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 Hamsa N Subramanian
Dr. Subramanian is listed as active in the NPI registry with telehealth listed in Saint Louis, MO. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (314) 872-3104.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Hamsa N Subramanian
Practice Location
425 N New Ballas Rd Ste 203, Saint Louis, MO 63141-6814
Mailing Address
425 N New Ballas Rd Ste 203, Saint Louis, MO 63141-6814
This is a provider directory. Contact the office directly to schedule appointments.
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