MR. MARK IAN MILLER
NPI 1790044428
Student in an Organized Health Care Education/Training Program in Los Angeles, CA
About Mr. Mark Ian Miller NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARK IAN MILLER (NPI 1790044428) is an individual student in an organized health care education/training program in Los Angeles, California and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS.
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 (PECOS)
Mr. Mark Ian Miller is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Miller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94111
- Reassigned Medicare billing, California enrollment
- 34 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.
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 Mark Miller's NPI number?
The NPI number for Mark Miller is 1790044428. It was assigned to this individual provider in the NPPES registry on May 15, 2012.
Where is Mark Miller located?
Mark Miller practices at 843 S Sierra Bonita Ave, Los Angeles, CA 90036. The listed phone number is (626) 394-9334.
What is Mark Miller's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Mark Miller enrolled in Medicare?
Yes. Mark Miller is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Miller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Miller reassigns Medicare benefits to Doctor On Demand Professionals Of California (San Francisco, 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 Mark 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 Mark Miller was last updated on May 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Mr. Mark Ian Miller · NPI 1790044428
Student in an Organized Health Care Education/Training Program provider in Los Angeles, California. Individual provider, active in the CMS NPPES registry since May 15, 2012.
## Identity
- **NPI:** 1790044428 (Entity type: Individual)
- **Enumerated:** May 15, 2012
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 843 S SIERRA BONITA AVE, Los Angeles, CA 90036-4703
- **Phone:** (626) 394-9334
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Doctor On Demand Professionals Of California (NPI 1346658614, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 15, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1790044428) · Data from the CMS NPPES public registry.