1. Home
  2. Directory
  3. Oregon
  4. Portland
  5. Psychiatry Neurology
  6. NPI Profile

GREGORY MILLER MD
NPI 1497727903
Psychiatry & Neurology - Psychiatry in Portland, OR

Active since February 07, 2006PECOS Enrolled
1225 NE 2ND AVE, PORTLAND, OR 97232(503) 944-8010 Get Directions Write a Review

NPPES record last updated: December 22, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 22, 2016, Nov 10, 2015 (2 updates tracked since 2015).

About Gregory Miller Md NPPES

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

GREGORY MILLER MD (NPI 1497727903) is an individual psychiatry provider in Portland, Oregon, licensed in Oregon (MD177057) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497727903
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameGREGORY MILLERCredential: MD
Location Address1225 NE 2ND AVEPortland, OR 97232-2003
Mailing Address3181 Sw Sam Jackson Park RdPortland, OR 97239-3011
Phone(503) 944-8010
Sole ProprietorYes
Enumeration DateFebruary 7, 2006
Last NPPES UpdateDecember 22, 20162 updates tracked since enumeration
✔ NPI 1497727903 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in OR · MD177057✔ Licensed in MA · 223300✔ Licensed in VT · 042.0011077
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1225 NE 2ND AVE, Portland, OR 97232
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINE61577VT

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gregory Miller Md 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 Reassignment

Medicare enrollment records show Gregory Miller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Legacy Emanuel Hospital & Health Center
Same address
General Acute Care Hospital
1225 NE 2ND AVE
Portland, OR 97232
  • Reassigned Medicare billing, Oregon enrollment
  • 719 clinicians in this Medicare group
NPI 1003367491 (503) 944-8000

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 97232 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
$176.88 typical visit price
range $58.99 – $176.88
Typical copayment $44.22 (range $14.74 – $44.22)
Most-billed visit code 99205
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
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.

LEGACY EMANUEL HOSPITAL & HEALTH CENTER
General Acute Care Hospital
1225 NE 2ND AVE
PORTLAND, OR 97232
Multnomah County (503) 944-8000
CHRISTY WARNEKE RN
Registered Nurse (Psychiatric/Mental Health, Adult)
1225 NE 2ND AVE
PORTLAND, OR 97232
Multnomah County (503) 944-8000
LEGACY EMANUEL HOSPITAL & HEALTH CENTER
Psychiatric Unit
1225 NE 2ND AVE
PORTLAND, OR 97232
Multnomah County (503) 944-8000
MS. KRISTINE MARIE SIMPSON N.P.
Nurse Practitioner (Family)
1225 NE 2ND AVE
PORTLAND, OR 97232
Multnomah County (503) 944-8000
JENNY JIEN-I TSAI MD
Psychiatry & Neurology (Child & Adolescent Psychiatry)
1225 NE 2ND AVE
PORTLAND, OR 97232
Multnomah County (503) 944-8000
MR. RODNEY STUART OLIN RN
Nurse Practitioner (Psychiatric/Mental Health)
1225 NE 2ND AVE, UNITY CENTER
PORTLAND, OR 97232
Multnomah County (503) 944-8010
JAMES CLARK TROTT PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
1225 NE 2ND AVE
PORTLAND, OR 97232
Multnomah County (503) 944-8000
JULIA RASMUSSEN RN
Registered Nurse (Psychiatric/Mental Health, Child & Adolescent)
1225 NE 2ND AVE
PORTLAND, OR 97232
Multnomah County (503) 944-7600

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 Gregory Miller's NPI number?

The NPI number for Gregory Miller is 1497727903. It was assigned to this individual provider in the NPPES registry on February 7, 2006.

Where is Gregory Miller located?

Gregory Miller practices at 1225 NE 2nd Ave, Portland, OR 97232. The listed phone number is (503) 944-8010.

What is Gregory Miller's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Gregory Miller enrolled in Medicare?

Yes. Gregory Miller is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gregory Miller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Miller reassigns Medicare benefits to Legacy Emanuel Hospital & Health Center (Portland, OR). The 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 Gregory Miller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gregory Miller was last updated on December 22, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.