DR. JOHN MATT GRISWOLD D.C.
NPI 1407120199
Chiropractor in Tulsa, OK
About Dr. John Matt Griswold D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN MATT GRISWOLD D.C. (NPI 1407120199) is an individual chiropractor in Tulsa, Oklahoma, licensed in Oklahoma (4059) and active in the NPI registry since February 2012. He is a graduate of Life Chiropractic College (2011).
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 (PECOS)
Dr. John Matt Griswold D.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Griswold reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Owasso, OK 74055
- Reassigned Medicare billing, Oklahoma enrollment
- 2 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.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 John Griswold's NPI number?
The NPI number for John Griswold is 1407120199. It was assigned to this individual provider in the NPPES registry on February 28, 2012.
Where is John Griswold located?
John Griswold practices at 702 S Utica Ave, Tulsa, OK 74104. The listed phone number is (918) 212-8688.
What is John Griswold's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is John Griswold enrolled in Medicare?
Yes. John Griswold is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Griswold's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Griswold reassigns Medicare benefits to 918 Chiropractic Owasso LLC (Owasso, OK). 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 John Griswold's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Griswold accept?
Health plans from Blue Cross and Blue Shield of Oklahoma, CommunityCare and UnitedHealthcare list John Griswold 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 John Griswold was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days 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.
# Dr. John Matt Griswold, D.C. · NPI 1407120199
Chiropractor provider in Tulsa, Oklahoma. Individual provider, active in the CMS NPPES registry since February 28, 2012.
## Identity
- **NPI:** 1407120199 (Entity type: Individual)
- **Enumerated:** February 28, 2012
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** 4059 (Oklahoma)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 702 S UTICA AVE, Tulsa, OK 74104-3213
- **Phone:** (918) 212-8688 · **Fax:** (866) 352-5122
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** 918 Chiropractic Owasso LLC (NPI 1891492476, Owasso, OK), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Life Chiropractic College, class of 2011
## Record status
- **NPPES last updated:** October 19, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1407120199) · Data from the CMS NPPES public registry.