KATHRYN VIONA OAS AGNP
NPI 1184181380
Nurse Practitioner - Primary Care in Cambridge, MA

Active since February 23, 2019PECOS EnrolledAccepts Medicare Assignment
94 HAMPSHIRE ST UNIT A, CAMBRIDGE, MA 02139(801) 602-5524 Get Directions Write a Review

NPPES record last updated: November 9, 2021. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Nov 9, 2021, Feb 23, 2019 (2 updates tracked since 2019).

About Kathryn Viona Oas Agnp NPPES

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

KATHRYN VIONA OAS AGNP (NPI 1184181380) is an individual primary care provider in Cambridge, Massachusetts, licensed in Massachusetts (RN2298520) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1184181380
Entity TypeIndividualFemale
Primary Taxonomy363LP2300X
Provider Legal NameKATHRYN VIONA OASCredential: AGNP
Location Address94 HAMPSHIRE ST UNIT ACambridge, MA 02139-1504
Mailing Address94 Hampshire St Unit ACambridge, MA 02139-1504
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateFebruary 23, 2019
Last NPPES UpdateNovember 9, 20212 updates tracked since enumeration
NPPES CertifiedNovember 8, 2021
NPI 1184181380 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Primary CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP2300X
Licenses Licensed in MA · RN2298520 Licensed in MA · AG07180344
94 HAMPSHIRE ST UNIT A, Cambridge, MA 02139

Accepted 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

Kathryn Viona Oas Agnp 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 ID1658603774
PECOS Enrollment IDI20191022003716
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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
22 services16 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

North Shore Medical Center -

Acute Care Hospitals · Salem, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220035
Location81 Highland AvenueSalem, MA 01970 · Essex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02139 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

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 Kathryn Oas's NPI number?

The NPI number for Kathryn Oas is 1184181380. It was assigned to this individual provider in the NPPES registry on February 23, 2019.

Where is Kathryn Oas located?

Kathryn Oas practices at 94 Hampshire St Unit A, Cambridge, MA 02139. The listed phone number is (801) 602-5524.

What is Kathryn Oas's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.

Is Kathryn Oas enrolled in Medicare?

Yes. Kathryn Oas 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 Kathryn Oas accept?

Health plans from Anthem Blue Cross and Blue Shield list Kathryn Oas 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 Kathryn Oas affiliated with any hospitals?

According to CMS data, Kathryn Oas is affiliated with North Shore Medical Center -.

When was this NPI record last updated?

The NPPES record for Kathryn Oas was last updated on November 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.