Nicholas Muff, MD
NPI 1740372861 · Specialist · Corona, CA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Muff, MD is a Specialist provider in Corona, CA (NPI 1740372861).
Provider details
- NPI number
- 1740372861
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G25544 (CA)
Specialties & taxonomies
Other Service Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
128 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| High Dose Rate Electronic Brachytherapy, External0394T | 37 | $164 |
| Use of Externally Generated Heat to Increase Temperature of Cancer Cell, Heating to Depths 4.0 Cm Or Less77600 | 34 | $561 |
| Obtaining Data Needed to Develop the Optimal Radiation Treatment, 3 Or More Treatment Areas Or Any Number of Treatment Areas Where Special Treatment Is Involved77290 | 29 | $456 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 28 | $72 |
Typical Medicare-allowed amounts for these services range $72–$561 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 2000 Hospital DriveSedro Woolley, WA 98284Phone: (360) 856-7270
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2025-06-13
- Certified
- 2025-06-13
Frequently asked questions
- What is Nicholas Muff's NPI number?
- Nicholas Muff's National Provider Identifier (NPI) is 1740372861, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Muff's specialty?
- Nicholas Muff is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Nicholas Muff located?
- Nicholas Muff's practice location on file with NPPES is 260 E Ontario Ave Ste 101, Corona, CA 92879-3508.
- What is Nicholas Muff's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Muff is (949) 490-4820.
- Does Nicholas Muff accept Medicare?
- Nicholas Muff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Muff's NPI active?
- Yes — Nicholas Muff's NPI (1740372861) is active in the NPPES registry as of the last update on 2025-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.