DR. CHARLES RALPH MUELLER M.D.
NPI 1952349177
Surgery in Portland, OR

Q: What is Charles Mueller's NPI number?

The NPI number for Charles Mueller is 1952349177. It was assigned to this individual provider in the NPPES registry on June 2, 2006.

Q: What is Charles Mueller's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Charles Mueller was last updated on December 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since June 02, 2006PECOS Enrolled

501 N GRAHAM ST STE 555, PORTLAND, OR 97227(503) 288-7535(503) 288-7538 Get Directions Write a Review

NPPES record last updated: December 5, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Dec 5, 2023, Nov 29, 2021 (2 updates tracked since 2021).

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About Dr. Charles Ralph Mueller M.d. NPPES

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

DR. CHARLES RALPH MUELLER M.D. (NPI 1952349177) is an individual surgery provider in Portland, Oregon, licensed in Oregon (MD15681) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1952349177

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. CHARLES RALPH MUELLERCredential: M.D.

Location Address501 N GRAHAM ST STE 555Portland, OR 97227-2007

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

Phone(503) 288-7535

Fax(503) 288-7538

Sole ProprietorNo

Enumeration DateJune 2, 2006

Last NPPES UpdateDecember 5, 20232 updates tracked since enumeration

NPPES CertifiedDecember 5, 2023

✔ NPI 1952349177 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in OR · MD15681

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

501 N GRAHAM ST STE 555, Portland, OR 97227

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Other Identifiers 2

Medicaid500667564OR

Medicaid1952349177WA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Charles Ralph Mueller 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.

Medicare Billing Reassignments

Medicare enrollment records show Charles Mueller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Oregon Clinic PC

1.6 mi

Specialist

541 NE 20TH AVE, SUITE 225
Portland, OR 97232

Reassigned Medicare billing, Oregon enrollment
338 clinicians in this Medicare group

NPI 1265417174 (503) 963-2801

Vibra Physicians LLC

962 mi

Hospitalist

4401 UNION ST
Johnstown, CO 80534

Reassigned Medicare billing, Oregon enrollment
57 clinicians in this Medicare group

NPI 1659705424 (970) 278-9340

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

Areas of Expertise CMS Part B claims

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.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

56 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97227 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

$90.51 typical visit price

range $58.99 – $176.88

Typical copayment $22.62 (range $14.74 – $44.22)

Most-billed visit code 99203

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 5

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

THERESA MCSHERRY FNP

Nurse Practitioner (Family)