PATRICK J GREGG MD PC
NPI 1326348566
Ophthalmology in Canby, OR

Q: What is Patrick J Gregg MD PC's NPI number?

The NPI number for Patrick J Gregg MD PC is 1326348566. It was assigned to this organization in the NPPES registry on October 21, 2010.

Q: What is Patrick J Gregg MD PC's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Active since October 21, 2010

160 NW 2ND AVE, CANBY, OR 97013(541) 263-3937 Get Directions Write a Review

NPPES record last updated: February 27, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Patrick J Gregg Md Pc NPPES

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

PATRICK J GREGG MD PC (NPI 1326348566) is a healthcare organization registered as an ophthalmology in Canby, Oregon and active in the NPI registry since October 2010. The organization maintains a secondary practice location in Lake Oswego and lists Patrick J Gregg, Ceo, as its authorized official.

NPPES Registry Identity

NPI1326348566

Entity TypeOrganization

Primary Taxonomy207W00000X

Legal Business NamePATRICK J GREGG MD PC

Location Address160 NW 2ND AVECanby, OR 97013

Mailing Address160 Nw 2nd AveCanby, OR 97013 · (541) 263-3937

Phone(541) 263-3937

Organization SubpartNo

Authorized OfficialPatrick J GreggCeo · (541) 784-7676

Enumeration DateOctober 21, 2010

Last NPPES UpdateFebruary 27, 2020

✔ NPI 1326348566 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

160 NW 2ND AVE, Canby, OR 97013

Open in Google Maps ↗

Secondary Practice Location 1

Location 1530 1st St Ste ALake Oswego, OR 97034-3248 · Phone (503) 636-9608 · Fax (503) 636-9600

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, BlueCross BlueShield of Tennessee.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Patrick J Gregg Md Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Patrick J Gregg MD PC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Kristi Liu, O.D.

Optometry

NPI 1144466541

9555 SW BARNES RD STE 201
Portland, OR 97225

(503) 227-2020

✔ PECOS✔ Accepts Medicare18 mi

Patrick Gregg, MD

Ophthalmology

NPI 1346224201

341 MEDICAL LOOP SUITE 120
Roseburg, OR 97471

(541) 672-4470

✔ PECOS✔ Accepts Medicare144 mi

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

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 Patrick J Gregg MD PC's NPI number?

The NPI number for Patrick J Gregg MD PC is 1326348566. It was assigned to this organization in the NPPES registry on October 21, 2010.

Where is Patrick J Gregg MD PC located?

Patrick J Gregg MD PC is located at 160 NW 2nd Ave, Canby, OR 97013. The listed phone number is (541) 263-3937.

What is Patrick J Gregg MD PC's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Patrick J Gregg MD PC enrolled in Medicare?

Yes. Patrick J Gregg MD PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Patrick J Gregg MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Patrick J Gregg MD PC, in Ophthalmology and Optometry. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Patrick J Gregg MD PC accept?

Health plans from Anthem Blue Cross and Blue Shield and BlueCross BlueShield of Tennessee list Patrick J Gregg MD PC 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 Patrick J Gregg MD PC was last updated on February 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.