Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Fenfen Wu, MD

Individual provider Internal Medicine Physician · NPI 1457621286

Mrs. Fenfen Wu, MD practises Internal Medicine in Federal Way, Washington. Qualified in 1999, 27 years ago. Practices with Select Outpatient Services Inc, a 790-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
27
Licensed in
WA
In the registry since
2012
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

34503 9th Ave S Ste 100
Federal Way, WA 98003-8727 Not confirmed with CMS for 11 years — call before visiting
Phone: (253) 874-2227
Fax: (253) 835-8000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD60454662 (WA)

Record details

NPI number1457621286
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 10, 2012
Last updated in NPPESJuly 23, 2015

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Select Outpatient Services Inc — 790 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients281
Services billed 1,538 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $197 2 payments · a meal or drink at a meeting or visit, not a fee
Education $14 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Highline Medical Center Hospital · Burien, WA
  • St Francis Community Hospital Hospital · Federal Way, WA
  • St Joseph Medical Center Hospital · Tacoma, WA
  • St Anthony Hospital Hospital · Gig Harbor, WA
  • Tacoma General Allenmore Hospital Hospital · Tacoma, WA
  • Assured Home Health Home health agency · Mountlake Terrace, WA
  • Chi Franciscan Health At Home Home health agency · University Place, WA

Colleagues at Select Outpatient Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 790 clinicians in the practice; 12 are shown here.

Other providers in Federal Way