IAN HOLMES MD
NPI 1073933099
Internal Medicine - Gastroenterology in Portland, OR

Q: What is Ian Holmes's NPI number?

The NPI number for Ian Holmes is 1073933099. It was assigned to this individual provider in the NPPES registry on April 17, 2014.

Q: What is Ian Holmes's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Ian Holmes was last updated on December 16, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since April 17, 2014PECOS EnrolledAccepts Medicare Assignment

1111 NE 99TH AVE STE 301, PORTLAND, OR 97220(503) 963-2707(503) 963-2802 Get Directions Write a Review

NPPES record last updated: December 16, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 16, 2025, Nov 15, 2021, May 10, 2021 and 2 more (5 updates tracked since 2021).

On this page

About Ian Holmes Md NPPES

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

IAN HOLMES MD (NPI 1073933099) is an individual gastroenterology provider in Portland, Oregon, licensed in Oregon (MD204232) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Legacy Mount Hood Medical Center, and maintains a secondary practice location in Happy Valley.

NPPES Registry Identity

NPI1073933099

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameIAN HOLMESCredential: MD

Location Address1111 NE 99TH AVE STE 301Portland, OR 97220-9442

Mailing Address541 Ne 20th Ave Ste 225Portland, OR 97232-2895 · (503) 963-2801 · Fax (503) 963-2825

Phone(503) 963-2707

Fax(503) 963-2802

Sole ProprietorNo

Medical School CMSOtherGraduated 2014

Enumeration DateApril 17, 2014

Last NPPES UpdateDecember 16, 20255 updates tracked since enumeration

NPPES CertifiedDecember 16, 2025

✔ NPI 1073933099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in OR · MD204232

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

1111 NE 99TH AVE STE 301, Portland, OR 97220

Open in Google Maps ↗

Secondary Practice Location 1

Location 19300 SE 91st Ave Ste 300Happy Valley, OR 97086-3762 · Phone (503) 963-2707 · Fax (503) 963-2802

Other Identifiers 2

Medicaid500791915OR

Medicaid2176196WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., Providence Health Plan and more.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

Ian Holmes Md 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 ID7214367283

PECOS Enrollment IDI20210510000110

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 8

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

30 services18 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

29 services29 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

25 services23 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

19 services19 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

19 services19 patients

Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43259

This procedure involves a flexible tube with a camera, called an endoscope, inserted through your mouth to examine your esophagus, stomach, and upper small bowel. An ultrasound device on the endoscope helps get detailed images. It's safe and helps diagnose various conditions.

15 services14 patients

Hospital Affiliations CMS Care Compare 4

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

Legacy Mount Hood Medical Center

Acute Care Hospitals · Gresham, OR

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380025

Location24800 SE Stark StreetGresham, OR 97030 · Multnomah County

Emergency services Birthing friendly

Adventist Health Portland

Acute Care Hospitals · Portland, OR

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number380060

Location10123 SE Market StreetPortland, OR 97216 · Multnomah County

Emergency services Birthing friendly

Providence Portland Medical Center

Acute Care Hospitals · Portland, OR

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380061

Location4805 NE Glisan StreetPortland, OR 97213 · Multnomah County

Emergency services Birthing friendly

Providence Milwaukie Hospital

Acute Care Hospitals · Milwaukie, OR

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number380082

Location10150 SE 32nd AvenueMilwaukie, OR 97222 · Clackamas County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97220 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

$134.16 typical visit price

range $58.99 – $176.88

Typical copayment $33.54 (range $14.74 – $44.22)

Most-billed visit code 99204

Established Patient

$103.51 typical visit price

range $19.32 – $144.79

Typical copayment $25.87 (range $4.83 – $36.19)

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.

Leave this field empty

Other Providers at the Same Location NPPES 16

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

MICHAEL BARTH PA-C

Physician Assistant