DR. BENJAMIN HOUSTON GREINER DO, MPH
NPI 1902428212
Internal Medicine in Tulsa, OK
About Dr. Benjamin Houston Greiner Do, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BENJAMIN HOUSTON GREINER DO, MPH (NPI 1902428212) is an individual internal medicine provider in Tulsa, Oklahoma, licensed in Oklahoma (7948) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS, is affiliated with Saint Francis Hospital Muskogee, and is a graduate of Oklahoma State University College Of Osteopathic Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Benjamin Houston Greiner Do, Mph 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 Benjamin Greiner reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tulsa, OK 74136
- Reassigned Medicare billing, Oklahoma enrollment
- 1,144 clinicians in this Medicare group
Tulsa, OK 74137
- Reassigned Medicare billing, Oklahoma enrollment
- Medicare enrollment name: Greiner Internal Medicine PC
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 14
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Saint Francis Hospital Muskogee
Acute Care Hospitals · Muskogee, OKSaint Francis Hospital, Inc
Acute Care Hospitals · Tulsa, OKSaint Francis Hospital South, LLC
Acute Care Hospitals · Tulsa, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74136 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TULSA, OK 74136
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 Benjamin Greiner's NPI number?
The NPI number for Benjamin Greiner is 1902428212. It was assigned to this individual provider in the NPPES registry on May 8, 2020.
Where is Benjamin Greiner located?
Benjamin Greiner practices at 6600 S Yale Ave Ste 600, Tulsa, OK 74136. The listed phone number is (918) 491-5990.
What is Benjamin Greiner's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Benjamin Greiner enrolled in Medicare?
Yes. Benjamin Greiner 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 Benjamin Greiner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Benjamin Greiner reassigns Medicare benefits to 2 organizations: Warren Clinic Inc (Tulsa, OK) and Greiner Internal Medicine, P.C. (Tulsa, OK). 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 Benjamin Greiner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Benjamin Greiner accept?
Health plans from Blue Cross and Blue Shield of Oklahoma and Mending Health list Benjamin Greiner 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.
Is Benjamin Greiner affiliated with any hospitals?
According to CMS data, Benjamin Greiner is affiliated with Saint Francis Hospital Muskogee, Saint Francis Hospital, Inc and Saint Francis Hospital South, LLC.
When was this NPI record last updated?
The NPPES record for Benjamin Greiner was last updated on August 16, 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.