RYAN ASHLEY MILLS MD
NPI 1861629958
Anesthesiology - Pediatric Anesthesiology in Dayton, OH
About Ryan Ashley Mills Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RYAN ASHLEY MILLS MD (NPI 1861629958) is an individual pediatric anesthesiology provider in Dayton, Ohio, licensed in Ohio (35.121421) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, maintains a secondary practice location in Miamisburg, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
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
Ryan Ashley Mills 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.
Medicare Billing Reassignments
2Medicare enrollment records show Ryan Mills reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dayton, OH 45404
- Reassigned Medicare billing, Ohio enrollment
- 54 clinicians in this Medicare group
Dayton, OH 45404
- Reassigned Medicare billing, Ohio enrollment
- Medicare enrollment name: Dayton Childrens Specialty Physicians Inc
- 479 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 45404 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
DAYTON, OH 45404
DAYTON, OH 45404
DAYTON, OH 45404
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 Ryan Mills's NPI number?
The NPI number for Ryan Mills is 1861629958. It was assigned to this individual provider in the NPPES registry on June 16, 2009.
Where is Ryan Mills located?
Ryan Mills practices at 1 Childrens Plz, Dayton, OH 45404. The listed phone number is (937) 641-3477.
What is Ryan Mills's specialty?
The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.
Is Ryan Mills enrolled in Medicare?
Yes. Ryan Mills 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 organizations bill Medicare for Ryan Mills's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Mills reassigns Medicare benefits to 2 organizations: Shriners Hospitals For Children (Dayton, OH) and Dayton Children's Specialty Physicians, Inc. (Dayton, OH). Each 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 Ryan Mills's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ryan Mills accept?
Health plans from CareSource list Ryan Mills as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Ryan Mills was last updated on October 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Ryan Ashley Mills, MD · NPI 1861629958
Pediatric Anesthesiology physician in Dayton, Ohio. Individual provider, active in the CMS NPPES registry since June 16, 2009.
## Identity
- **NPI:** 1861629958 (Entity type: Individual)
- **Enumerated:** June 16, 2009
- **Primary specialty:** Anesthesiology - Pediatric Anesthesiology · taxonomy 207LP3000X
- **State license:** 35.121421 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 CHILDRENS PLZ, Dayton, OH 45404-1815
- **Phone:** (937) 641-3477 · **Fax:** (937) 641-5410
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Shriners Hospitals For Children (NPI 1235627480, Dayton, OH); Dayton Children's Specialty Physicians, Inc. (NPI 1225192610, Dayton, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** October 15, 2023
- **Other identifiers:** Medicaid 0102739 (OH)
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Source: [NPI Profile](https://npiprofile.com/npi/1861629958) · Data from the CMS NPPES public registry.