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CORNERSTONE CLINICAL SERVICES PC
NPI 1093892895
Community/Behavioral Health in Milwaukie, OR

Active since November 01, 2006
6400 SE LAKE RD STE 325, MILWAUKIE, OR 97222(503) 786-1711(503) 786-9919 Get Directions Write a Review

NPPES record last updated: September 26, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Cornerstone Clinical Services Pc NPPES

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

CORNERSTONE CLINICAL SERVICES PC (NPI 1093892895) is a healthcare organization registered as a community/behavioral health in Milwaukie, Oregon and active in the NPI registry since November 2006. The organization lists Diane L Strong, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1093892895
Entity TypeOrganization
Primary Taxonomy251S00000X
Legal Business NameCORNERSTONE CLINICAL SERVICES PC
Location Address6400 SE LAKE RD STE 325Milwaukie, OR 97222-2185
Mailing Address6400 Se Lake Rd Ste 325Milwaukie, OR 97222-2185 · (503) 786-1711 · Fax (503) 786-9919
Phone(503) 786-1711
Fax(503) 786-9919
Organization SubpartNo
Authorized OfficialDiane L StrongOffice Manager · (503) 786-1711
Enumeration DateNovember 1, 2006
Last NPPES UpdateSeptember 26, 2007
✔ NPI 1093892895 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCommunity/Behavioral HealthAgencies
Taxonomy Code251S00000X
Definition
A private or public agency usually under local government jurisdiction, responsible for assuring the delivery of community based mental health, intellectual disabilities, substance abuse and/or behavioral health services to individuals with those disabilities. Services may range from companion care, respite, transportation, community integration, crisis intervention and stabilization, supported employment, day support, prevocational services, residential support, therapeutic and supportive consultation, environmental modifications, intensive in-home therapy and day treatment, in addition to traditional mental health and behavioral treatment.
6400 SE LAKE RD STE 325, Milwaukie, OR 97222
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Other Identifiers 1

Medicare PINR118382OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., Regence BlueCross BlueShield of Oregon.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)

Cornerstone Clinical Services Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

22

Medicare enrollment records show 22 clinicians reassign Medicare billing to Cornerstone Clinical Services PC, which bills Medicare for the services they deliver. Of these, 13 practice at this address and 17 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 6

Clinical Psychologist11
Psychiatry4
Nurse Practitioner3
Mental Health Counselor2
Internal Medicine1
Psychologist Billing Independently1

Nearest to this location (20)

See all 22
Allie Davis, D.O.
Psychiatry
NPI 1265881973
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOS✔ Accepts MedicareSame address
Jordan Feist
Nurse Practitioner
NPI 1770291924
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOSSame address
Joanna Harberts
Clinical Psychologist
NPI 1114122942
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOS✔ Accepts MedicareSame address
Dawn Hoffman-Gray, PSY.D.
Clinical Psychologist
NPI 1588697197
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOS✔ Accepts MedicareSame address
Michelle Lown, PSY D CLINICAL PSYCH
Clinical Psychologist
NPI 1619042082
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOS✔ Accepts MedicareSame address
Timothy Perkins, PSY.D.
Clinical Psychologist
NPI 1336171313
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOS✔ Accepts MedicareSame address
Kerry Phifer, PMHNP
Nurse Practitioner
NPI 1447336037
6400 SE LAKE RD STE 325
Portland, OR 97222
(503) 786-1711
✔ PECOSSame address
James Putman, PSY.D.
Clinical Psychologist
NPI 1306861737
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOS✔ Accepts MedicareSame address
Laura Roberts, PSY.D.
Clinical Psychologist
NPI 1750313060
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOS✔ Accepts MedicareSame address
Matthew Sleasman, PSY.D.
Clinical Psychologist
NPI 1326071937
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOS✔ Accepts MedicareSame address
Zachary Stine, PSYD
Psychologist Billing Independently
NPI 1194363945
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ Accepts MedicareSame address
Alan Yeo, M.D., MPH
Psychiatry
NPI 1417983628
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(541) 768-5144
✔ PECOS✔ Accepts MedicareSame address
Darcy Nyone, MA
Mental Health Counselor
NPI 1558673780
6400 SE LAKE RD STE 325
Milwaukie, OR 97222
(503) 786-1711
✔ PECOSSame address
Sheryl Ivey, NP
Nurse Practitioner
NPI 1447693684
10121 SE SUNNYSIDE RD STE 300
Clackamas, OR 97015
(503) 908-1289
✔ PECOS1.9 mi
Y Pritham Raj, MD
Internal Medicine
NPI 1972690923
3181 SW SAM JACKSON PARK RD MAIL CODE: L475
Portland, OR 97239
(503) 494-8562
✔ PECOS✔ Accepts Medicare6.5 mi
Philip Bolton, MD
Psychiatry
NPI 1588692388
PO BOX 19134
Portland, OR 97280
(503) 245-5142
✔ PECOS✔ Accepts Medicare7.1 mi
Zachary Buckles, PSY.D.
Clinical Psychologist
NPI 1932747789
7340 SW HUNZIKER RD STE 210
Tigard, OR 97223
(503) 352-0036
✔ PECOS✔ Accepts Medicare7.6 mi
Peter Wilson, PSY.D.
Clinical Psychologist
NPI 1992897490
1217 NE BURNSIDE RD BLDG B, SUITE 401
Gresham, OR 97030
(503) 666-8832
✔ PECOS✔ Accepts Medicare10 mi
Kelli Pellegrini, PSYD
Clinical Psychologist
NPI 1477677730
142 SW 2ND AVE
Canby, OR 97013
(503) 266-5411
✔ PECOS✔ Accepts Medicare12 mi
Jeslyn Stamm, MSCP, CADC-II, CCJP
Mental Health Counselor
NPI 1336403849
14600 NW CORNELL RD
Portland, OR 97229
(808) 285-3391
✔ PECOS✔ Accepts Medicare13 mi
See all 22 clinicians

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 Cornerstone Clinical Services PC's NPI number?

The NPI number for Cornerstone Clinical Services PC is 1093892895. It was assigned to this organization in the NPPES registry on November 1, 2006.

Where is Cornerstone Clinical Services PC located?

Cornerstone Clinical Services PC is located at 6400 SE Lake Rd Ste 325, Milwaukie, OR 97222. The listed phone number is (503) 786-1711.

What is Cornerstone Clinical Services PC's specialty?

The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.

Is Cornerstone Clinical Services PC enrolled in Medicare?

Yes. Cornerstone Clinical Services PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Cornerstone Clinical Services PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 22 clinicians in 6 Medicare specialties reassign their Medicare billing to Cornerstone Clinical Services PC. 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. The largest specialties are Clinical Psychologist (11), Psychiatry (4) and Nurse Practitioner (3). Of these, 13 practice at this address and 17 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Cornerstone Clinical Services PC accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc. and Regence BlueCross BlueShield of Oregon list Cornerstone Clinical Services 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 Cornerstone Clinical Services PC was last updated on September 26, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.