Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Marlene Peng, MD

Individual provider Allergy Physician · NPI 1770697112

Dr. Marlene Peng, MD practises Allergy/Immunology in Seattle, Washington. Graduated from Northwestern University Feinberg Medical School in 2002, 24 years ago. Practices with Swedish Health Services, a 1,045-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Utah, Washington and Wisconsin.

Years since qualifying
24
Trained at
Northwestern University Feinberg Medical School
Licensed in
UT, WA, WI
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

515 Minor Ave 3rd Fl
Seattle, WA 98104-2120
Phone: (206) 386-9500
Fax: (206) 576-3802
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy Physician (primary) Taxonomy 207KA0200X · Licence MD60102678 (WA)
Allergy & Immunology Physician Taxonomy 207K00000X · Licence 68453341205 (UT)
Pediatric Allergy/Immunology Physician Taxonomy 2080P0201X · Licence 46653 (WI)

Record details

NPI number1770697112
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 19, 2006
Last updated in NPPESJune 23, 2021
Certification dateJune 23, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Also practisesPEDIATRIC MEDICINE
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 2002 (24 years in practice)
Group practice Swedish Health Services — 1045 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients82
Services billed 1,074 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Swedish Health Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1045 clinicians in the practice; 12 are shown here.

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