DR. MARCIA LYNN GRAN D.C.
NPI 1629107701
Chiropractor in Tulsa, OK
About Dr. Marcia Lynn Gran D.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARCIA LYNN GRAN D.C. (NPI 1629107701) is an individual chiropractor in Tulsa, Oklahoma, licensed in Oklahoma (2584) and active in the NPI registry since March 2007. She is a graduate of Cleveland Chiropractic College - Kansas City (1987).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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. Marcia Lynn Gran D.c. 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 Reassignment
Medicare enrollment records show Marcia Gran reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tulsa, OK 74135
- Reassigned Medicare billing, Oklahoma enrollment
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 Marcia Gran's NPI number?
The NPI number for Marcia Gran is 1629107701. It was assigned to this individual provider in the NPPES registry on March 5, 2007.
Where is Marcia Gran located?
Marcia Gran practices at 3515 E 31st St Suite C, Tulsa, OK 74135. The listed phone number is (918) 748-9876.
What is Marcia Gran's specialty?
The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.
Is Marcia Gran enrolled in Medicare?
Yes. Marcia Gran 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 organization bills Medicare for Marcia Gran's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcia Gran reassigns Medicare benefits to Gran Miracle Chiropractic Inc PC (Tulsa, 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 Marcia Gran's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marcia Gran accept?
Health plans from Blue Cross and Blue Shield of Oklahoma and UnitedHealthcare list Marcia Gran 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 Marcia Gran was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Marcia Lynn Gran, D.C. · NPI 1629107701
Chiropractor provider in Tulsa, Oklahoma. Individual provider, active in the CMS NPPES registry since March 5, 2007.
## Identity
- **NPI:** 1629107701 (Entity type: Individual)
- **Enumerated:** March 5, 2007
- **Primary specialty:** Chiropractor · taxonomy 111N00000X
- **State license:** 2584 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 3515 E 31ST ST, SUITE C, Tulsa, OK 74135-1520
- **Phone:** (918) 748-9876 · **Fax:** (918) 748-9331
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Gran Miracle Chiropractic Inc PC (NPI 1912191503, Tulsa, OK), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Cleveland Chiropractic College - Kansas City, class of 1987
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare ID-Type Unspecified 2324009000 (OK); Other 731329673001 (OK)
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Source: [NPI Profile](https://npiprofile.com/npi/1629107701) · Data from the CMS NPPES public registry.