1. Home
  2. Directory
  3. Washington
  4. Issaquah
  5. Obstetrics Gynecology
  6. NPI Profile

THERESA COREY HAMER MD
NPI 1609162593
Obstetrics & Gynecology in Issaquah, WA

Active since June 20, 2011PECOS EnrolledAccepts Medicare Assignment
751 NE BLAKELY DR, ISSAQUAH, WA 98029(206) 386-2229(425) 313-4244 Get Directions Write a Review

NPPES record last updated: April 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 23, 2026, Sep 15, 2022 (2 updates tracked since 2022).

About Theresa Corey Hamer Md NPPES

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

THERESA COREY HAMER MD (NPI 1609162593) is an individual obstetrics & gynecology provider in Issaquah, Washington, licensed in Washington (MD60560492) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS and is a graduate of University Of Virginia School Of Medicine (2011).

NPPES Registry Identity

NPI1609162593
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameTHERESA COREY HAMERCredential: MD
Location Address751 NE BLAKELY DRIssaquah, WA 98029-6201
Mailing AddressPo Box 25608Salt Lake City, UT 84125-0608 · (206) 320-4476
Phone(206) 386-2229
Fax(425) 313-4244
Sole ProprietorNo
Medical School CMSUniversity Of Virginia School Of MedicineGraduated 2011
Enumeration DateJune 20, 2011
Last NPPES UpdateApril 23, 20262 updates tracked since enumeration
NPPES CertifiedApril 23, 2026
✔ NPI 1609162593 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 · MD60560492
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.
751 NE BLAKELY DR, Issaquah, WA 98029
Open in Google Maps ↗

Other Identifiers 1

Medicaid2046552WA

Accepted Insurance

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

Theresa Corey Hamer 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 ID8123331709
PECOS Enrollment IDI20150727000294
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 98029 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.

LAUREN LIN HART MD
Emergency Medicine
751 NE BLAKELY DR
ISSAQUAH, WA 98029
King County (425) 313-4000
MS. LAURA SANDERSON CNM
Advanced Practice Midwife
751 NE BLAKELY DR, FL 3
ISSAQUAH, WA 98029
King County (425) 313-4141
DR. MORGAN M WISE D.O.
Emergency Medicine
751 NE BLAKELY DR
ISSAQUAH, WA 98029
King County (425) 313-4000
KELLY KRISTIN GAUDREAU RN
Registered Nurse (Lactation Consultant)
751 NE BLAKELY DR
ISSAQUAH, WA 98029
King County (425) 313-2377
JENNIFER VAN DYKE PHARMD
Pharmacist
751 NE BLAKELY DR
ISSAQUAH, WA 98029
King County (425) 313-5510
DR. DAVID DONG M.D.
Internal Medicine (Medical Oncology)
751 NE BLAKELY DR, 1090
ISSAQUAH, WA 98029
King County (425) 313-4200
JUDITH TIA MARTIN L.M.P.
Massage Therapist
751 NE BLAKELY DR, SUITE 3020
ISSAQUAH, WA 98029
King County (253) 377-8933
JAMES F SPIEGEL M.D.
Radiology (Radiation Oncology)
751 NE BLAKELY DR, STE 1090
ISSAQUAH, WA 98029
King County (425) 313-4200

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 Theresa Hamer's NPI number?

The NPI number for Theresa Hamer is 1609162593. It was assigned to this individual provider in the NPPES registry on June 20, 2011.

Where is Theresa Hamer located?

Theresa Hamer practices at 751 NE Blakely Dr, Issaquah, WA 98029. The listed phone number is (206) 386-2229.

What is Theresa Hamer's specialty?

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

Is Theresa Hamer enrolled in Medicare?

Yes. Theresa Hamer 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 Theresa Hamer accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Theresa Hamer 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 Theresa Hamer was last updated on April 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.