DANA IOANA IONESCU M. D.
NPI 1386960540
Hospitalist in Federal Way, WA

Active since April 13, 2010PECOS EnrolledAccepts Medicare Assignment
34515 9TH AVE S, FEDERAL WAY, WA 98003(253) 426-6341(253) 426-6344 Get Directions Write a Review

NPPES record last updated: November 4, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Nov 4, 2025, Jul 21, 2022, Sep 15, 2017 (3 updates tracked since 2017).

About Dana Ioana Ionescu M. D. NPPES

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

DANA IOANA IONESCU M. D. (NPI 1386960540) is an individual hospitalist provider in Federal Way, Washington, licensed in Washington (MD60281974) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS, is affiliated with Virginia Mason Medical Center, and maintains a secondary practice location in Burien.

NPPES Registry Identity

NPI1386960540
Entity TypeIndividualFemale
Primary Taxonomy208M00000X
Provider Legal NameDANA IOANA IONESCUCredential: M. D.
Location Address34515 9TH AVE SFederal Way, WA 98003-6761
Mailing Address34515 9th Ave SFederal Way, WA 98003-6761 · (253) 426-6341 · Fax (253) 426-6344
Fax(253) 426-6344
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateApril 13, 2010
Last NPPES UpdateNovember 4, 20253 updates tracked since enumeration
NPPES CertifiedNovember 4, 2025
NPI 1386960540 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in WA · MD60281974
Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License MD60281974 (WA)
34515 9TH AVE S, Federal Way, WA 98003

Other Names 1

Former Name (1)Dana Ioana Marcu M. D.

Secondary Practice Location 1

Location 116251 Sylvester Rd SWBurien, WA 98166-3017 · Phone (360) 774-8800 · Fax (440) 922-0145

Accepted 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

Dana Ioana Ionescu M. D. 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 ID9133371206
PECOS Enrollment IDI20121218000575
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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
373 services152 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
106 services102 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
104 services71 patients

Hospital Affiliations CMS Care Compare 3

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

Virginia Mason Medical Center

Acute Care Hospitals · Seattle, WA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500005
Location925 Seneca StSeattle, WA 98101 · King County
Emergency services Birthing friendly

Highline Medical Center

Acute Care Hospitals · Burien, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500011
Location16251 Sylvester Road SWBurien, WA 98166 · King County
Emergency services Birthing friendly

St Francis Community Hospital

Acute Care Hospitals · Federal Way, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number500141
Location34515 9th Avenue SFederal Way, WA 98003 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98003 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
99%108 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 5

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier16 claims16 services$13.24 avg. paid by Medicare
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier12 claims12 services$772.61 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
5 suppliers58 claims58 services$64.73 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier16 claims16 services$29.94 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
2 suppliers21 claims21 services$34.28 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Anesthesiology
34515 9TH AVE S
FEDERAL WAY, WA 98003
Pharmacist (Pharmacotherapy)
34515 9TH AVE S
FEDERAL WAY, WA 98003
Pharmacist
34515 9TH AVE S
FEDERAL WAY, WA 98003
Pharmacist (Pharmacotherapy)
34515 9TH AVE S
FEDERAL WAY, WA 98003
Pharmacist
34515 9TH AVE S
FEDERAL WAY, WA 98003
Physician Assistant
34515 9TH AVE S
FEDERAL WAY, WA 98003
Emergency Medicine
34515 9TH AVE S
FEDERAL WAY, WA 98003
Emergency Medicine
34515 9TH AVE S, SUITE 600
FEDERAL WAY, WA 98003

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 Dana Ionescu's NPI number?

The NPI number for Dana Ionescu is 1386960540. It was assigned to this individual provider in the NPPES registry on April 13, 2010. The provider is also known as Dana Ioana Marcu M. D..

Where is Dana Ionescu located?

Dana Ionescu practices at 34515 9th Ave S, Federal Way, WA 98003. The listed phone number is (253) 426-6341.

What is Dana Ionescu's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Dana Ionescu enrolled in Medicare?

Yes. Dana Ionescu 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 Dana Ionescu accept?

Health plans from Providence Health Plan list Dana Ionescu 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 Dana Ionescu affiliated with any hospitals?

According to CMS data, Dana Ionescu is affiliated with Virginia Mason Medical Center, Highline Medical Center and St Francis Community Hospital.

When was this NPI record last updated?

The NPPES record for Dana Ionescu was last updated on November 4, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.