Ya-Yu Lee, MD

Endocrinology, Diabetes & Metabolism

Internal Medicine

Ya-Yu Lee is an Endocrinology, Diabetes & Metabolism specialist based in Allentown, PA with over 25 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

(610) 402-6790Allentown, PA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Ya-Yu Lee, MD has practiced internal medicine for 25+ years, working in group practice. He has been practicing since 2007 — over 25 years. CMS Medicare data shows his patients commonly have high cholesterol, osteoporosis, and hypertension.

1 of 241 Internal Medicine providers in PASee all Internal Medicine in Allentown25+ years experienceNPI since 2007

Older · 3840dNPPES updated 2015-11-18 · verify NPI on CMS · Verify license at Pennsylvania State Board of Medicine

Contact & Location

Practice Location

1243 S Cedar Crest Blvd Suite 2800, Allentown, PA 18103-6268

CMS Clinical Data

How Does This Doctor Compare?

Generic Rx

↑ Higher = better

58.8%

Pennsylvania avg: 82.8 · US avg: 82.8

Lower than most doctors nationally(-24 pts)

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

835

Unique beneficiaries

High volume

Prescription Recipients

500

Patients prescribed

Prescriptions Written

2,973

Total claims

Total Medicare drug cost: $1.51M

Percentile rankings compared against 3,764 reporting peers in Pennsylvania.

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 High Cholesterol, Osteoporosis, and Hypertension.

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Osteoporosis
Higher than avg (+57%)75%

Weakened bones that are more prone to fractures, common in older adults

US avg: 18.1%

↑ More patients than average (+57%) — a focus area for this doctor

Hypertension
Lower than avg (-6%)64%

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

US avg: 70.2%

↓ Fewer patients than average (-6%) — less common here

Arthritis
Lower than avg (-1%)48%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-1%) — less common here

Anxiety Disorders
Lower than avg (-3%)31%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↓ Fewer patients than average (-3%) — less common here

Diabetes
Lower than avg (-8%)26%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-8%) — less common here

Mood Disorders
26%

Conditions affecting emotional state, including depression and bipolar disorder

Chronic Kidney Disease
Lower than avg (-5%)25%

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

US avg: 29.6%

↓ Fewer patients than average (-5%) — less common here

GeneralBehavioralNational avg

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

Industry Payment Transparency

$232 received from industry

2 transactions 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 Ya-Yu Lee's NPI.

Community Context

Social Vulnerability Index: 0.46 / 1.00

Below-average vulnerability

He 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.

Patient Reviews

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Background & Specialty

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

Career Journey
  1. 25 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

Practice Footprint

Mailing address

Po Box 783311, Philadelphia, PA 19178-3311

Differs from practice location

Virtual Endocrinology, Diabetes & Metabolism Care With Ya-Yu Lee

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

Schedule a virtual visit with Ya-Yu Lee for cholesterol management, follow-up consultations, blood pressure monitoring — no travel to Allentown 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 Ya-Yu Lee

Dr. Lee is listed as active in the NPI registry with telehealth listed in Allentown, PA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (610) 402-6790.

Verified across 7 federal data sources

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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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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