DR. NISHA SHAROFF ASHWIN DDS,MS
NPI 1720579378
Dentist - Oral and Maxillofacial Surgery in Seattle, WA

Active since May 18, 2018PECOS Enrolled
9650 15TH AVE SW STE 100, SEATTLE, WA 98106(206) 965-1005(206) 965-1042 Get Directions Write a Review

NPPES record last updated: February 21, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 21, 2025, Feb 3, 2025, Sep 24, 2024 and 7 more (10 updates tracked since 2018).

About Dr. Nisha Sharoff Ashwin Dds,ms NPPES

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

DR. NISHA SHAROFF ASHWIN DDS,MS (NPI 1720579378) is an individual oral and maxillofacial surgery provider in Seattle, Washington, licensed in Washington (DE60800403) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS and maintains a secondary practice location in Othello.

NPPES Registry Identity

NPI1720579378
Entity TypeIndividualFemale
Primary Taxonomy1223S0112X
Provider Legal NameDR. NISHA SHAROFF ASHWINCredential: DDS,MS
Location Address9650 15TH AVE SW STE 100Seattle, WA 98106
Mailing AddressPo Box 34703Seattle, WA 98124-1703
Fax(206) 965-1042
Sole ProprietorNo
Enumeration DateMay 18, 2018
Last NPPES UpdateFebruary 21, 202510 updates tracked since enumeration
NPPES CertifiedFebruary 21, 2025
✔ NPI 1720579378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyDentist · Oral and Maxillofacial SurgeryDental Providers
Taxonomy Code1223S0112X
License✔ Licensed in WA · DE60800403
Definition
An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
Also ListedDentistTaxonomy 122300000X · License DE60800403 (WA)
Also ListedDentist · General PracticeTaxonomy 1223G0001X · License DE60800403 (WA)
Also ListedDentist · Orofacial PainTaxonomy 1223X2210X · License 60800403 (WA)
9650 15TH AVE SW STE 100, Seattle, WA 98106

Secondary Practice Location 1

Location 11515 E Columbia StOthello, WA 99344-1846 · Phone (509) 488-5256 ext. 8512 · Fax (509) 488-9939

Other Identifiers 1

Medicaid2100188WA

Accepted 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. Nisha Sharoff Ashwin Dds,ms 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 Reassignments

2

Medicare enrollment records show Nisha Sharoff Ashwin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Federally Qualified Health Center (FQHC)
9650 15TH AVE SW STE 100
Seattle, WA 98106
  • Reassigned Medicare billing, Washington enrollment
  • 525 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
601 GOVERNMENT WAY
Mattawa, WA 99349
  • Reassigned Medicare billing, Washington enrollment
  • 76 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98106 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
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
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.

Clinic/Center (Federally Qualified Health Center (FQHC))
9650 15TH AVE SW STE 100
SEATTLE, WA 98106
Nurse Practitioner (Family)
9650 15TH AVE SW STE 100
SEATTLE, WA 98106
Clinic/Center (Federally Qualified Health Center (FQHC))
9650 15TH AVE SW STE 100
SEATTLE, WA 98106
Family Medicine
9650 15TH AVE SW STE 100
SEATTLE, WA 98106
Social Worker (Clinical)
9650 15TH AVE SW STE 100
SEATTLE, WA 98106
Family Medicine
9650 15TH AVE SW STE 100
SEATTLE, WA 98106
Dentist (Orthodontics and Dentofacial Orthopedics)
9650 15TH AVE SW STE 100
SEATTLE, WA 98106
Dietitian, Registered
9650 15TH AVE SW STE 100
SEATTLE, WA 98106

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 Nisha Sharoff Ashwin's NPI number?

The NPI number for Nisha Sharoff Ashwin is 1720579378. It was assigned to this individual provider in the NPPES registry on May 18, 2018.

Where is Nisha Sharoff Ashwin located?

Nisha Sharoff Ashwin practices at 9650 15th Ave SW Ste 100, Seattle, WA 98106. The listed phone number is (206) 965-1005.

What is Nisha Sharoff Ashwin's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.

Is Nisha Sharoff Ashwin enrolled in Medicare?

Yes. Nisha Sharoff Ashwin is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Nisha Sharoff Ashwin's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nisha Sharoff Ashwin reassigns Medicare benefits to 2 organizations: Sea Mar Community Health Centers (Seattle, WA) and Columbia Basin Health Association (Mattawa, WA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nisha Sharoff Ashwin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nisha Sharoff Ashwin accept?

Health plans from Anthem Blue Cross and Blue Shield, BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 7 other insurers list Nisha Sharoff Ashwin 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 Nisha Sharoff Ashwin was last updated on February 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.