MARK D LOWDERMILK MD
NPI 1114001823
Obstetrics & Gynecology in Seattle, WA

Active since October 25, 2006PECOS EnrolledAccepts Medicare Assignment
82.84/100
CMS Quality Rating
1229 MADISON ST STE 1450, SEATTLE, WA 98104(206) 215-6300(206) 215-6301 Get Directions Write a Review

NPPES record last updated: October 8, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mark D Lowdermilk Md NPPES

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

MARK D LOWDERMILK MD (NPI 1114001823) is an individual obstetrics & gynecology provider in Seattle, Washington, licensed in Washington (MD00034023) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Swedish Medical Center / Cherry Hill, and maintains a secondary practice location in Seattle.

NPPES Registry Identity

NPI1114001823
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameMARK D LOWDERMILKCredential: MD
Location Address1229 MADISON ST STE 1450Seattle, WA 98104-3538
Mailing AddressPo Box 84026Seattle, WA 98124-8426 · (206) 215-6300
Fax(206) 215-6301
Sole ProprietorNo
Medical School CMSUniversity Of Utah School Of MedicineGraduated 1994
Enumeration DateOctober 25, 2006
Last NPPES UpdateOctober 8, 2020
NPPES CertifiedOctober 8, 2020
NPI 1114001823 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License Licensed in WA · MD00034023
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1229 MADISON ST STE 1450, Seattle, WA 98104

Secondary Practice Location 1

Location 11101 Madison St Ste 700Seattle, WA 98104-3599 · Phone (206) 215-6300 · Fax (206) 215-6301

Other Identifiers 1

Medicaid8208019WA

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

Mark D Lowdermilk 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 ID6103978077
PECOS Enrollment IDI20090723000678
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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
34 services20 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
14 services14 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Swedish Medical Center / Cherry Hill

Acute Care Hospitals · Seattle, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number500025
Location500 17th AvenueSeattle, WA 98122 · King County
Emergency services

Swedish Medical Center

Acute Care Hospitals · Seattle, WA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500027
Location747 BroadwaySeattle, WA 98122 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98104 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
$78.74 typical visit price
range $21.12 – $155.00
Typical copayment $19.68 (range $5.28 – $38.75)
Most-billed visit code 99213
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.

82.84/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality82.14
Promoting Interoperability100
Improvement Activities40
Cost60.65

Other Providers at the Same Location NPPES 12

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

Obstetrics & Gynecology
1229 MADISON ST STE 1450
SEATTLE, WA 98104
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1229 MADISON ST STE 1450
SEATTLE, WA 98104
Obstetrics & Gynecology
1229 MADISON ST STE 1450
SEATTLE, WA 98104
Clinical Medical Laboratory
1229 MADISON ST STE 1450
SEATTLE, WA 98104
Internal Medicine (Rheumatology)
1229 MADISON ST STE 1450
SEATTLE, WA 98104
Obstetrics & Gynecology
1229 MADISON ST STE 1450
SEATTLE, WA 98104
Nurse Practitioner
1229 MADISON ST STE 1450
SEATTLE, WA 98104
Obstetrics & Gynecology
1229 MADISON ST STE 1450
SEATTLE, WA 98104

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 Mark Lowdermilk's NPI number?

The NPI number for Mark Lowdermilk is 1114001823. It was assigned to this individual provider in the NPPES registry on October 25, 2006.

Where is Mark Lowdermilk located?

Mark Lowdermilk practices at 1229 Madison St Ste 1450, Seattle, WA 98104. The listed phone number is (206) 215-6300.

What is Mark Lowdermilk's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Mark Lowdermilk enrolled in Medicare?

Yes. Mark Lowdermilk 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 Mark Lowdermilk accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Mark Lowdermilk 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 Mark Lowdermilk affiliated with any hospitals?

According to CMS data, Mark Lowdermilk is affiliated with Swedish Medical Center / Cherry Hill and Swedish Medical Center.

When was this NPI record last updated?

The NPPES record for Mark Lowdermilk was last updated on October 8, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.