MACK ONTIVEROS MD
NPI 1740784958
Psychiatry & Neurology - Psychiatry in Mason, OH
About Mack Ontiveros Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MACK ONTIVEROS MD (NPI 1740784958) is an individual psychiatry provider in Mason, Ohio, licensed in Ohio (35.137285) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2018).
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
Mack Ontiveros 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 Mack Ontiveros reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mason, OH 45040
- Reassigned Medicare billing, Ohio enrollment
- 90 clinicians in this Medicare group
Mason, OH 45040
- Reassigned Medicare billing, Ohio enrollment
- 88 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 3
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 45040 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.
MASON, OH 45040
MASON, OH 45040
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 Mack Ontiveros's NPI number?
The NPI number for Mack Ontiveros is 1740784958. It was assigned to this individual provider in the NPPES registry on March 21, 2018.
Where is Mack Ontiveros located?
Mack Ontiveros practices at 4075 Old Western Row Rd, Mason, OH 45040. The listed phone number is (513) 536-0232.
What is Mack Ontiveros's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Mack Ontiveros enrolled in Medicare?
Yes. Mack Ontiveros 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 Mack Ontiveros's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mack Ontiveros reassigns Medicare benefits to 2 organizations: Lindner Center Of Hope Professional Associates (Mason, OH) and The Craig And Frances Lindner Center Of Hope (Mason, 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 Mack Ontiveros'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 Mack Ontiveros was last updated on March 27, 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.
# Mack Ontiveros, MD · NPI 1740784958
Psychiatry physician in Mason, Ohio. Individual provider, active in the CMS NPPES registry since March 21, 2018.
## Identity
- **NPI:** 1740784958 (Entity type: Individual)
- **Enumerated:** March 21, 2018
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 35.137285 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 4075 OLD WESTERN ROW RD, Mason, OH 45040-3104
- **Phone:** (513) 536-0232
## 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): Lindner Center Of Hope Professional Associates (NPI 1124425020, Mason, OH); The Craig And Frances Lindner Center Of Hope (NPI 1023207750, Mason, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 2018
## Record status
- **NPPES last updated:** March 27, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1740784958) · Data from the CMS NPPES public registry.