Ioana Fat, MD
Endocrinology, Diabetes & Metabolism
Ioana Fat is an Endocrinology, Diabetes & Metabolism specialist based in Washington, DC with over 20 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Ioana Fat, MD specializes in internal medicine, serving patients in Washington, DC in independent practice. With 20+ years of experience, she has been practicing in the Washington area. Among her Medicare patients, common conditions include hypertension, high cholesterol, and diabetes (per CMS data).
Older · 4430dNPPES updated 2014-04-09 · verify NPI on CMS · Verify license at DC Board of Medicine
Contact & Location
Practice Location
3800 Reservoir Rd Nw Dept of Endocrinology, Washington, DC 20007-2113
How Does This Doctor Compare?
Generic Rx
↑ Higher = better48.9%
District of Columbia avg: 80.4 · US avg: 82.8
⚠ Lower than most doctors nationally(-33.9 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
494
Unique beneficiaries
Standard volumePrescription Recipients
276
Patients prescribed
Prescriptions Written
1,731
Total claims
Total Medicare drug cost: $1.27M
Percentile rankings compared against 449 reporting peers in District of Columbia.
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 Diabetes.
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
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+32%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-2%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+10%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-6%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-9%) — less common here
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↓ Fewer patients than average (-2%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$2.3k received from industry
104 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 Ioana Fat's NPI.
Social Vulnerability Index: 0.61 / 1.00
Moderate vulnerabilityShe practices in a community where the CDC measures social vulnerability across socioeconomic status, household composition, racial/ethnic minority status, and housing/transportation factors. A higher index indicates more residents may face barriers accessing care.
Source: CDC/ATSDR Social Vulnerability Index.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
20 years in practice
Experienced
Endocrinologists treat hormonal and metabolic disorders including diabetes (type 1 and 2), thyroid disease, osteoporosis, adrenal disorders, pituitary conditions, and polycystic ovary syndrome (PCOS).
Taxonomy: 207RE0101X
Mailing address
3800 Reservoir Rd Nw Dept of, Washington, DC 20007-2113
Differs from practice location
Virtual Endocrinology, Diabetes & Metabolism Care With Ioana Fat
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Ioana Fat for blood pressure monitoring, cholesterol management, diabetes check-ins — no travel to Washington 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 Ioana Fat
NPI records show Dr. Fat as active with telehealth listed in Washington, DC. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (202) 687-2818.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator · HRSA HPSA · CDC SVI. See Data Methodology.
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Contact Ioana Fat
Practice Location
3800 Reservoir Rd Nw Dept of Endocrinology, Washington, DC 20007-2113
Mailing Address
3800 Reservoir Rd Nw Dept of, Washington, DC 20007-2113
This is a provider directory. Contact the office directly to schedule appointments.
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