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DR. JOHN GILBERT OAS M.D.
NPI 1336146638
Psychiatry & Neurology - Neurology in Gahanna, OH

Active since June 30, 2005PECOS Enrolled
920 N HAMILTON RD STE 500, GAHANNA, OH 43230(614) 293-4969(614) 293-6111 Get Directions Write a Review

NPPES record last updated: November 10, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 10, 2020, Aug 27, 2020, Sep 29, 2016 (3 updates tracked since 2016).

About Dr. John Gilbert Oas M.d. NPPES

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

DR. JOHN GILBERT OAS M.D. (NPI 1336146638) is an individual neurology provider in Gahanna, Ohio, licensed in Ohio (35.074548) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1336146638
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. JOHN GILBERT OASCredential: M.D.
Location Address920 N HAMILTON RD STE 500Gahanna, OH 43230-1757
Mailing Address700 Ackerman Rd Ste 2120Columbus, OH 43202-1559 · (614) 293-4969 · Fax (614) 293-6111
Phone(614) 293-4969
Fax(614) 293-6111
Sole ProprietorNo
Enumeration DateJune 30, 2005
Last NPPES UpdateNovember 10, 20203 updates tracked since enumeration
NPPES CertifiedNovember 10, 2020
✔ NPI 1336146638 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in OH · 35.074548
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
920 N HAMILTON RD STE 500, Gahanna, OH 43230
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Other Identifiers 2

OtherP01686413OH · Railroad Medicare
Medicaid2104476OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.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)

Dr. John Gilbert Oas M.d. 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 43230 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
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CLAIRE MARIE ALEXANDER PHD
Psychologist (Clinical)
920 N HAMILTON RD STE 500
GAHANNA, OH 43230
Franklin County (614) 293-4969
DEBORAH RAE HARTNETT APRN-CNP
Nurse Practitioner (Family)
920 N HAMILTON RD STE 500
GAHANNA, OH 43230
Franklin County (614) 293-4969
KIMBERLY MARIE SPRINGER APRN-CNP
Nurse Practitioner
920 N HAMILTON RD STE 500
GAHANNA, OH 43230
Franklin County (614) 293-4969
ROCHELLE LYNN O'NEIL PHD
Psychologist
920 N HAMILTON RD STE 500
GAHANNA, OH 43230
Franklin County (614) 293-4969
DR. YASUSHI KISANUKI M.D.
Psychiatry & Neurology (Neurology)
920 N HAMILTON RD STE 500
GAHANNA, OH 43230
Franklin County (614) 293-4969
DR. KEVIN DAVID WEBER M.D., M.H.A.
Psychiatry & Neurology (Neurology)
920 N HAMILTON RD STE 500
GAHANNA, OH 43230
Franklin County (614) 293-4969
CLAIRE N SPEELMAN PHD
Clinical Neuropsychologist
920 N HAMILTON RD STE 500
GAHANNA, OH 43230
Franklin County (614) 293-4969

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 John Oas's NPI number?

The NPI number for John Oas is 1336146638. It was assigned to this individual provider in the NPPES registry on June 30, 2005.

Where is John Oas located?

John Oas practices at 920 N Hamilton Rd Ste 500, Gahanna, OH 43230. The listed phone number is (614) 293-4969.

What is John Oas's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is John Oas enrolled in Medicare?

Yes. John Oas is registered in the Medicare PECOS enrollment system.

What insurance does John Oas accept?

Health plans from CareSource list John 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.

When was this NPI record last updated?

The NPPES record for John Oas was last updated on November 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.