SEAN ROBERT MILLER M.D.
NPI 1396944674
Internal Medicine - Hematology & Oncology in Fontana, CA
About Sean Robert Miller M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEAN ROBERT MILLER M.D. (NPI 1396944674) is an individual hematology & oncology provider in Fontana, California, licensed in California (A80320) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sean Robert Miller M.d. 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.
Medicare Billing Reassignment
Medicare enrollment records show Sean Miller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- 5,228 clinicians in this Medicare group
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92335 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FONTANA, CA 92335
FONTANA, CA 92335
FONTANA, CA 92335
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Sean Miller's NPI number?
The NPI number for Sean Miller is 1396944674. It was assigned to this individual provider in the NPPES registry on July 16, 2007.
Where is Sean Miller located?
Sean Miller practices at 9985 Sierra Ave Hematology/Oncology Dept., Fontana, CA 92335. The listed phone number is (909) 427-5000.
What is Sean Miller's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Sean Miller enrolled in Medicare?
Yes. Sean Miller is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Sean Miller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean Miller reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sean Miller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Sean Miller was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Sean Robert Miller, M.D. · NPI 1396944674
Hematology & Oncology physician in Fontana, California. Individual provider, active in the CMS NPPES registry since July 16, 2007.
## Identity
- **NPI:** 1396944674 (Entity type: Individual)
- **Enumerated:** July 16, 2007
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** A80320 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9985 SIERRA AVE, HEMATOLOGY/ONCOLOGY DEPT., Fontana, CA 92335-6720
- **Phone:** (909) 427-5000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1689606196, Fontana, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Creighton University School Of Medicine, class of 2001
## Record status
- **NPPES last updated:** November 29, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1396944674) · Data from the CMS NPPES public registry.