Donald Anthony St. Claire, M.D.

Interventional Cardiology Internal Medicine

Internal Medicine

Donald Anthony St. Claire is an Interventional Cardiology Internal Medicine specialist based in E Palo Alto, CA with over 38 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: CARDIOVASCULAR DISEASE (CARDIOLOGY)

(650) 617-8100E Palo Alto, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

With over 38 years in internal medicine, Donald Anthony St. Claire, M.D. is a long-established interventional cardiology internal medicine specialist in E Palo Alto. A Hahnemann University College of Medicine graduate since 1988, he brings 38+ years of experience. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and ischemic_heart.

1 of 271 Internal Medicine providers in CASee all Internal Medicine in E Palo Alto38+ years experienceNPI since 2006

Older · 2187dNPPES updated 2020-05-28 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

1950 University Ave Suite 160, E Palo Alto, CA 94303-2250

Fax: (650) 327-2947
CMS Clinical Data

How Does This Doctor Compare?

Medicare Patients

1,823

Unique beneficiaries

High volume

Prescription Recipients

686

Patients prescribed

Prescriptions Written

5,553

Total claims

Total Medicare drug cost: $1.19M

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.

Patient Condition Panel

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 Ischemic Heart Disease.

Hypertension
75%

High blood pressure — a leading risk factor for heart disease and stroke

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Ischemic Heart Disease
50%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Atrial Fibrillation
50%

An irregular, often rapid heartbeat that increases the risk of stroke

Arthritis
42%

Joint inflammation causing pain, swelling, and stiffness

Heart Failure
24%

The heart cannot pump blood efficiently enough to meet the body's needs

Diabetes
23%

A condition where the body cannot properly regulate blood sugar levels

Chronic Kidney Disease
22%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Industry Payment Transparency

$26 received from industry

1 transaction reported in 2024 ·Low tier

View on CMS Open Payments →

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 Donald Anthony St. Claire's NPI.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 1988

    Hahnemann University College of Medicine

  2. Board certified · May 27, 2020

    Self-reported via NPPES

  3. 38 years in practice

    Senior practitioner

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Taxonomy: 207RI0011X

Education & Training

Hahnemann University College of Medicine (Class of 1988)

Practice Footprint

Mailing address

325 Distel Cir, Los Altos, CA 94022-1408

Differs from practice location

Primary hospital affiliation: Psychiatric

CMS Certification Number: 184014

View hospital on Medicare Care Compare

Virtual Interventional Cardiology Care With Donald Anthony St. Claire

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Donald Anthony St. Claire for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to E Palo Alto 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 Donald Anthony St. Claire

NPI records show Dr. St. Claire as active with telehealth listed in E Palo Alto, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (650) 617-8100.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.

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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.

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