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ALEXANDRA CECIL STYHL MD
NPI 1689254500
Internal Medicine in Mercer Island, WA

Active since April 13, 2021PECOS EnrolledAccepts Medicare Assignment
3236 78TH AVE SE STE 200, MERCER ISLAND, WA 98040(206) 275-5060(206) 275-5061 Get Directions Write a Review

NPPES record last updated: December 6, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 6, 2025, May 4, 2021, Apr 16, 2021 (3 updates tracked since 2021).

About Alexandra Cecil Styhl Md NPPES

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

ALEXANDRA CECIL STYHL MD (NPI 1689254500) is an individual internal medicine provider in Mercer Island, Washington, licensed in Washington (MD61586728) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Swedish Medical Center / Cherry Hill, and is a graduate of University Of Washington School Of Medicine (2021).

NPPES Registry Identity

NPI1689254500
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameALEXANDRA CECIL STYHLCredential: MD
Location Address3236 78TH AVE SE STE 200Mercer Island, WA 98040-3500
Mailing AddressPo Box 25608Salt Lake City, UT 84125-0608 · (206) 320-4476 · Fax (206) 568-7043
Phone(206) 275-5060
Fax(206) 275-5061
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 2021
Enumeration DateApril 13, 2021
Last NPPES UpdateDecember 6, 20253 updates tracked since enumeration
NPPES CertifiedDecember 6, 2025
✔ NPI 1689254500 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WA · MD61586728
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
3236 78TH AVE SE STE 200, Mercer Island, WA 98040
Open in Google Maps ↗

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

Alexandra Cecil Styhl 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 ID3678962776
PECOS Enrollment IDI20241022003471
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 3

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

Swedish Issaquah

Acute Care Hospitals · Issaquah, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500152
Location751 NE Blakely DrIssaquah, WA 98029 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98040 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.

Other Providers at the Same Location NPPES 5

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

STEPHEN LOUIS WALSTON MD
Internal Medicine
3236 78TH AVE SE STE 200
MERCER ISLAND, WA 98040
King County (206) 386-9500
ANDREA H CHANG DO
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3236 78TH AVE SE STE 200
MERCER ISLAND, WA 98040
King County (206) 386-9500
MS. BOYON YUN ARNP
Nurse Practitioner (Family)
3236 78TH AVE SE STE 200
MERCER ISLAND, WA 98040
King County (206) 275-5060
DR. KEITH ALEXANDER LUTHER MD
Internal Medicine
3236 78TH AVE SE STE 200
MERCER ISLAND, WA 98040
King County (206) 275-5060
REBECCA NEBEL ARNP
Nurse Practitioner (Family)
3236 78TH AVE SE STE 200
MERCER ISLAND, WA 98040
King County (206) 275-5060

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 Alexandra Styhl's NPI number?

The NPI number for Alexandra Styhl is 1689254500. It was assigned to this individual provider in the NPPES registry on April 13, 2021.

Where is Alexandra Styhl located?

Alexandra Styhl practices at 3236 78th Ave SE Ste 200, Mercer Island, WA 98040. The listed phone number is (206) 275-5060.

What is Alexandra Styhl's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Alexandra Styhl enrolled in Medicare?

Yes. Alexandra Styhl 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 Alexandra Styhl accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Alexandra Styhl 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 Alexandra Styhl affiliated with any hospitals?

According to CMS data, Alexandra Styhl is affiliated with Swedish Medical Center / Cherry Hill, Swedish Medical Center and Swedish Issaquah.

When was this NPI record last updated?

The NPPES record for Alexandra Styhl was last updated on December 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.