MARK LORING HARMAN MD
NPI 1811967276
Obstetrics & Gynecology - Maternal & Fetal Medicine in Tulsa, OK
About Mark Loring Harman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK LORING HARMAN MD (NPI 1811967276) is an individual maternal & fetal medicine provider in Tulsa, Oklahoma, licensed in Oklahoma (19591) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mark Loring Harman Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Harman 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
- 124 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 74135 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 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TULSA, OK 74135
TULSA, OK 74135
TULSA, OK 74135
TULSA, OK 74135
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 Mark Harman's NPI number?
The NPI number for Mark Harman is 1811967276. It was assigned to this individual provider in the NPPES registry on January 26, 2006.
Where is Mark Harman located?
Mark Harman practices at 4444 E. 41st St 3rd Floor, Ste B, Tulsa, OK 74135. The listed phone number is (918) 582-0721.
What is Mark Harman's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.
Is Mark Harman enrolled in Medicare?
Yes. Mark Harman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Harman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Harman reassigns Medicare benefits to Board Of Regents Of The University Of Oklahoma Ou Physicians Tulsa (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 Mark Harman'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 Mark Harman was last updated on October 27, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.