DR. POLINA FROLOVA GREGORY D.O.
NPI 1639598394
Pediatrics - Pediatric Hematology-Oncology in Seattle, WA

Q: What is Polina Frolova Gregory's NPI number?

The NPI number for Polina Frolova Gregory is 1639598394. It was assigned to this individual provider in the NPPES registry on April 10, 2014. The provider is also known as Polina Frolov.

Q: What is Polina Frolova Gregory's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Active since April 10, 2014PECOS Enrolled

825 EASTLAKE AVE E, SEATTLE, WA 98109(206) 520-5000 Get Directions Write a Review

NPPES record last updated: October 26, 2017. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 26, 2017, Aug 3, 2017, Feb 2, 2016 (3 updates tracked since 2016).

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About Dr. Polina Frolova Gregory D.o. NPPES

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

DR. POLINA FROLOVA GREGORY D.O. (NPI 1639598394) is an individual pediatric hematology-oncology provider in Seattle, Washington, licensed in Washington (OP60777439) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and maintains a secondary practice location in Clinton Twp.

NPPES Registry Identity

NPI1639598394

Entity TypeIndividualFemale

Primary Taxonomy2080P0207X

Provider Legal NameDR. POLINA FROLOVA GREGORYCredential: D.O.

Location Address825 EASTLAKE AVE ESeattle, WA 98109-4405

Mailing AddressPo Box 50095Seattle, WA 98145-5095 · (206) 520-5700

Phone(206) 520-5000

Sole ProprietorNo

Enumeration DateApril 10, 2014

Last NPPES UpdateOctober 26, 20173 updates tracked since enumeration

✔ NPI 1639598394 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0207X

License✔ Licensed in WA · OP60777439

Definition

A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.

Also ListedPediatricsTaxonomy 208000000X · License OP60777439 (WA)

825 EASTLAKE AVE E, Seattle, WA 98109

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Other Names 1

Former Name (1)Polina Frolov

Secondary Practice Location 1

Location 115855 19 Mile Rd, Henry Ford Macomb HospitalsClinton Twp, MI 48038-3504 · Phone (586) 203-1662

Other Identifiers 2

Medicaid1639598394WA

Other8970370WA · Medicare Pin

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Polina Frolova Gregory D.o. 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.

Medicare Billing Reassignment

Medicare enrollment records show Polina Frolova Gregory reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Association Of Chmc And University Physicians

1.6 mi

Orthopaedic Trauma

325 9TH AVE
Seattle, WA 98104

Reassigned Medicare billing, Washington enrollment
Medicare enrollment name: The Association Of Chrmc And University Physicians
1,443 clinicians in this Medicare group

NPI 1215153671 (206) 731-3000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

SANDHYA RAMANATHAN PANCH M.D.

Internal Medicine (Hematology)