Amber L Hertz-Tang, MD
Amber L Hertz-Tang is a Nephrology Internal Medicine specialist based in Portland, OR with over 12 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Amber L Hertz-Tang, MD specializes in internal medicine, serving patients in Portland, OR in group practice. She graduated from University of Wisconsin School of Medicine in 2014 and has 12+ years of clinical experience. She regularly sees Medicare patients with hypertension, kidney disease, and high cholesterol (per CMS claims data).
At a glance
- Uses generic medications more than 28% of reporting doctors in Oregon
- Virtual visits available — no app or travel required
Older · 242dNPPES updated 2025-09-25 · verify NPI on CMS · Verify license at Oregon Medical Board
Contact & Location
Practice Location
9155 Sw Barnes Rd Ste 402, Portland, OR 97225-6631
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Generic Rx
↑ Higher = better83.8%
Oregon avg: 83.7 · US avg: 82.8
✓ Higher than most doctors nationally(+1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
305
Unique beneficiaries
Standard volumePrescription Recipients
299
Patients prescribed
Prescriptions Written
1,119
Total claims
Total Medicare drug cost: $238k
Percentile rankings compared against 1,341 reporting peers in Oregon.
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, Chronic Kidney Disease, and High Cholesterol.
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
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+45%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+4%) — 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 (+29%) — a focus area for this doctor
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+32%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+12%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-10%) — less common here
An irregular, often rapid heartbeat that increases the risk of stroke
US avg: 22%↑ More patients than average (+13%) — a focus area for this doctor
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2014
University of Wisconsin School of Medicine and Public Health
Board certified · Sep 24, 2025
Self-reported via NPPES
12 years in practice
Established
Nephrologists treat kidney diseases including chronic kidney disease, kidney failure requiring dialysis, glomerulonephritis, kidney stones, and electrolyte disorders. They manage dialysis access and kidney transplant follow-up.
Taxonomy: 207RN0300X
Education & Training
University of Wisconsin School of Medicine (Class of 2014)
Mailing address
Po Box 3068, Portland, OR 97208-3068
Differs from practice location
Virtual Internal Medicine Care With Amber L Hertz-Tang
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Amber L Hertz-Tang for blood pressure monitoring, kidney care follow-ups, cholesterol management — no travel to Portland 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 Amber L Hertz-Tang
NPI records show Dr. Hertz-Tang as active with telehealth listed in Portland, OR. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (503) 292-7704.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · 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.
Contact Amber L Hertz-Tang
Practice Location
9155 Sw Barnes Rd Ste 402, Portland, OR 97225-6631
Mailing Address
Po Box 3068, Portland, OR 97208-3068
This is a provider directory. Contact the office directly to schedule appointments.
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