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MAHLET ASSEFA MD
NPI 1033748561
Internal Medicine - Nephrology in Seattle, WA

Active since April 06, 2020PECOS EnrolledAccepts Medicare Assignment
1959 NE PACIFIC STREET BOX : 356521, SEATTLE, WA 98195(206) 543-3792 Get Directions Write a Review

NPPES record last updated: June 4, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 4, 2025, Jun 12, 2023, Jul 30, 2021 and 1 more (4 updates tracked since 2020).

About Mahlet Assefa Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MAHLET ASSEFA MD (NPI 1033748561) is an individual nephrology provider in Seattle, Washington, licensed in Washington (MD61314347) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with University Of Washington Medical Ctr, and is a graduate of University Of Washington School Of Medicine (2020).

NPPES Registry Identity

NPI1033748561
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameMAHLET ASSEFACredential: MD
Location Address1959 NE PACIFIC STREET BOX : 356521Seattle, WA 98195-0001
Mailing AddressPo Box 50095Seattle, WA 98145-5095
Phone(206) 543-3792
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 2020
Enumeration DateApril 6, 2020
Last NPPES UpdateJune 4, 20254 updates tracked since enumeration
NPPES CertifiedJune 4, 2025
✔ NPI 1033748561 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in WA · MD61314347
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD61314347 (WA)
1959 NE PACIFIC STREET BOX : 356521, Seattle, WA 98195
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mahlet Assefa Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7810310364
PECOS Enrollment IDI20250616002739
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Washington Medical Ctr

Acute Care Hospitals · Seattle, WA
3/5 CMS rating
OwnershipGovernment - State
CMS Certification Number500008
Location1959 NE Pacific St Box 356151Seattle, WA 98195 · King County
Emergency services Birthing friendly

Harborview Medical Center

Acute Care Hospitals · Seattle, WA
1/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number500064
Location325 9th AvenueSeattle, WA 98104 · King County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98195 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
1 supplier11 claims22 services$5.38 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mahlet Assefa's NPI number?

The NPI number for Mahlet Assefa is 1033748561. It was assigned to this individual provider in the NPPES registry on April 6, 2020.

Where is Mahlet Assefa located?

Mahlet Assefa practices at 1959 NE Pacific Street Box : 356521, Seattle, WA 98195. The listed phone number is (206) 543-3792.

What is Mahlet Assefa's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Mahlet Assefa enrolled in Medicare?

Yes. Mahlet Assefa is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mahlet Assefa accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Mahlet Assefa as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mahlet Assefa affiliated with any hospitals?

According to CMS data, Mahlet Assefa is affiliated with University Of Washington Medical Ctr and Harborview Medical Center.

When was this NPI record last updated?

The NPPES record for Mahlet Assefa was last updated on June 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.