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ANN M KOLWITZ MD
NPI 1811996531
Obstetrics & Gynecology in Bellevue, WA

Active since July 14, 2005PECOS Enrolled
1231 116TH AVE NE, SUITE 950, BELLEVUE, WA 98004(425) 454-3366(425) 943-3201 Get Directions Write a Review

NPPES record last updated: November 13, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ann M Kolwitz Md NPPES

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

ANN M KOLWITZ MD (NPI 1811996531) is an individual obstetrics & gynecology provider in Bellevue, Washington, licensed in Washington (MD00021784) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811996531
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameANN M KOLWITZCredential: MD
Location Address1231 116TH AVE NE, SUITE 950Bellevue, WA 98004-3804
Mailing Address1231 116th Ave Ne, Suite 950Bellevue, WA 98004-3804 · (425) 454-3366 · Fax (425) 943-3201
Phone(425) 454-3366
Fax(425) 943-3201
Sole ProprietorNo
Enumeration DateJuly 14, 2005
Last NPPES UpdateNovember 13, 2015
✔ NPI 1811996531 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 · MD00021784
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.
1231 116TH AVE NE, Bellevue, WA 98004
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Other Identifiers 3

Medicare UPINA04920WA
Medicaid8636706WA
Medicare PIN102819WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ann M Kolwitz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98004 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.

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.

MS. JESSICA SWENSON ARNP
Nurse Practitioner (Obstetrics & Gynecology)
1231 116TH AVE NE, SUITE 950
BELLEVUE, WA 98004
King County (425) 454-3366
THE MOORE CENTER, PC
Psychiatric Residential Treatment Facility
1231 116TH AVE NE, 8TH FLOOR
BELLEVUE, WA 98004
King County (425) 454-1010
DR. JONATHAN CHAIM KOPELOVICH M.D.
Otolaryngology
1231 116TH AVE NE, SUITE 915
BELLEVUE, WA 98004
King County (425) 454-3938
CHRISTOPHER LEE SCOTT SUDP
Counselor (Addiction (Substance Use Disorder))
1231 116TH AVE NE
BELLEVUE, WA 98004
King County (425) 749-5483
CAROLINE PAIGE PEARSON
Counselor (Mental Health)
1231 116TH AVE NE
BELLEVUE, WA 98004
King County (425) 454-1010
SAMSON LEE MD
Otolaryngology
1231 116TH AVE NE, SUITE 915
BELLEVUE, WA 98004
King County (425) 454-3938
DEAN S RICKETTS M.D.
Orthopaedic Surgery
1231 116TH AVE NE, SUITE 100
BELLEVUE, WA 98004
King County (425) 454-5344
GRETA KRAMER RD
Dietitian, Registered
1231 116TH AVE NE
BELLEVUE, WA 98004
King County (425) 454-1010

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 Ann Kolwitz's NPI number?

The NPI number for Ann Kolwitz is 1811996531. It was assigned to this individual provider in the NPPES registry on July 14, 2005.

Where is Ann Kolwitz located?

Ann Kolwitz practices at 1231 116th Ave NE Suite 950, Bellevue, WA 98004. The listed phone number is (425) 454-3366.

What is Ann Kolwitz's specialty?

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

Is Ann Kolwitz enrolled in Medicare?

Yes. Ann Kolwitz is registered in the Medicare PECOS enrollment system.

What insurance does Ann Kolwitz accept?

Health plans from PacificSource Health Plans list Ann Kolwitz 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.

When was this NPI record last updated?

The NPPES record for Ann Kolwitz was last updated on November 13, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.