Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1740372861 Individual Practitioner Male Practitioner

Dr. Nicholas S Muff , MD

Specialist • Corona, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Nicholas Muff, MD is a certified Specialist practicing in Corona, CA. With approximately 54 years of clinical experience since graduating from Loma Linda University School Of Medicine in 1972, Dr. Muff delivers high-quality medical care to the local community at 260 E ONTARIO AVE STE 101.

Dr. Muff is affiliated with Stephen William Doggett Md Pa and accepts Medicare assignment.

Frequently performed procedures and clinical services include high dose rate electronic brachytherapy, external hyperthermia treatment depth 4 cm or less, obtaining data needed to develop the optimal radiation treatment. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

260 E Ontario Ave Ste 101

Corona, CA 928793508

Telephone 9494904820
Fax 9494904819
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Loma Linda University School Of Medicine

Graduation Year

1972

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Corona, CA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
54 Yrs Matches City Avg
City Avg: 54.0 Yrs
State Avg: 38.0 Yrs
Regional Practice Density
9 Specialists

Practicing in Corona, CA (6446 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
50.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Muff (54 Years) 54 Yrs
Corona Specialty Average (54.0 Years) 54.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
0394T High dose rate electronic brachytherapy
37 34 $856.76 $164.44
77600 External hyperthermia treatment depth 4 cm or less
34 34 $770.59 $561.35
77290 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
29 29 $600.00 $456.36
99202 New patient office or other outpatient visit, typically 20 minutes
28 28 $300.00 $72.18

Medical Specialties & State Licenses

CMS Verified: 2025-06-13
Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License WA MD00015015

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.

Radiology - Radiation Oncology

NUCC Taxonomy Code: 2085R0001X

State License CA G25544

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
1160381 (WA)
Commercial Insurance / Payer ID Regence Bs
05660 (WA)
Commercial Insurance / Payer ID Group Health
13895001 (WA)

Hospital & Practice Group Affiliations

Stephen William Doggett Md Pa

296 Cottage Ave, Manteca, CA 953364942

Phone: 2092392901

Stephen William Doggett Md Pa

21137 Sr 410, Bonney Lake, WA 983918775

Phone: 9494904819

Stephen William Doggett Md Pa

424 Lilly Rd Ne, Olympia, WA 985065132

Phone: 3604591700

Stephen William Doggett Md Pa

1075 Roberta Ln, Sparks, NV 894311893

Phone: 7252081040

Secondary Practice Locations

2000 Hospital Drive

Sedro Woolley, WA 98284

Phone: 3608567270

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
Dr. Stephen Doggett , MD

Radiology - Radiation Oncology

NPI 1982675021

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events
📍
Updated Practice Location June 13, 2025

Registered at 260 E ONTARIO AVE STE 101, CORONA, CA 928793508 (Tel: 9494904820)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 13, 2025

Radiology (License #G25544 in CA)

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 2000 HOSPITAL DRIVE, SEDRO WOOLLEY, WA 98284 (Tel: 3608567270)

📍
Updated Business Mailing Address July 08, 2007

Registered at P O BOX 977, COUPEVILLE, WA 98239 (Tel: 3606784071)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as NICHOLAS MUFF, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Specialist (License #MD00015015 in WA)

🟢
Initial NPI Registration & Enumeration September 28, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1740372861
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 28, 2006
Last Update: June 13, 2025
Sole Proprietor: No

Mailing Address

P O Box 977

Coupeville, WA 98239

Phone: 3606784071

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.