NICHOLAS S MUFF MD
NPI 1740372861
Specialist in Corona, CA

Q: What is Nicholas Muff's NPI number?

The NPI number for Nicholas Muff is 1740372861. It was assigned to this individual provider in the NPPES registry on September 28, 2006.

Q: What is Nicholas Muff's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for Nicholas Muff was last updated on June 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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 September 28, 2006PECOS EnrolledAccepts Medicare Assignment

260 E ONTARIO AVE STE 101, CORONA, CA 92879(949) 490-4820(949) 490-4819 Get Directions Write a Review

NPPES record last updated: June 13, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Nicholas S Muff Md NPPES

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

NICHOLAS S MUFF MD (NPI 1740372861) is an individual specialist in Corona, California, licensed in Washington (MD00015015) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (1972).

NPPES Registry Identity

NPI1740372861

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameNICHOLAS S MUFFCredential: MD

Location Address260 E ONTARIO AVE STE 101Corona, CA 92879-3508

Mailing AddressP O Box 977Coupeville, WA 98239 · (360) 678-4071 · Fax (360) 678-6014

Phone(949) 490-4820

Fax(949) 490-4819

Sole ProprietorNo

Medical School CMSLoma Linda University School Of MedicineGraduated 1972

Enumeration DateSeptember 28, 2006

Last NPPES UpdateJune 13, 2025

NPPES CertifiedJune 13, 2025

✔ NPI 1740372861 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in WA · MD00015015

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Also ListedRadiology · Radiation OncologyTaxonomy 2085R0001X · License G25544 (CA)

260 E ONTARIO AVE STE 101, Corona, CA 92879

Open in Google Maps ↗

Other Identifiers 3

Other05660WA · Regence Bs

Other13895001WA · Group Health

Medicaid1160381WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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

Nicholas S Muff 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 ID244281533

PECOS Enrollment IDI20050203000558, I20180215001324, I20240115000103

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 4

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.

High dose rate electronic brachytherapy, external 0394T

High Dose Rate Electronic Brachytherapy (HDR EBT) is a precise form of radiation therapy. It involves placing a tiny source of radiation directly into the area needing treatment. This allows a high dose of radiation to be delivered directly to the area, while reducing exposure to surrounding healthy tissues.

37 services34 patients

Use of externally generated heat to increase temperature of cancer cell, heating to depths 4.0 cm or less 77600

This procedure involves using a source of heat from outside the body to raise the temperature of cancer cells. The heat is applied up to a depth of 4.0 cm beneath the skin surface. The increase in temperature can help in the treatment of the cancer.

34 services34 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

29 services29 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

28 services28 patients

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.

HUSSEIN MERZA MD

Internal Medicine (Hematology & Oncology)