DR. MARGARET JEAN HART D.O
NPI 1942426689
Family Medicine in Muskogee, OK
About Dr. Margaret Jean Hart D.o NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET JEAN HART D.O (NPI 1942426689) is an individual family medicine provider in Muskogee, Oklahoma, licensed in Oklahoma (9069) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Saint Francis Hospital Muskogee, and maintains a secondary practice location in Broken Arrow.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
Other Identifiers 1
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. Margaret Jean Hart D.o 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 Margaret Hart 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
Chandler, AZ 85224
- Reassigned Medicare billing, Arizona 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 4
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 74401 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 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 Margaret Hart's NPI number?
The NPI number for Margaret Hart is 1942426689. It was assigned to this individual provider in the NPPES registry on April 18, 2007. The provider is also known as Sister Edith Mary Hart D.O..
Where is Margaret Hart located?
Margaret Hart practices at 3332 W Okmulgee St, Muskogee, OK 74401. The listed phone number is (918) 682-2481.
What is Margaret Hart's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Margaret Hart enrolled in Medicare?
Yes. Margaret Hart 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 Margaret Hart's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Hart reassigns Medicare benefits to 2 organizations: Warren Clinic Inc (Tulsa, OK) and Immaculate Heart Of Mary Family Health Center (Chandler, AZ). 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 Margaret Hart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Hart accept?
Health plans from Blue Cross Blue Shield of Arizona, Blue Cross and Blue Shield of Oklahoma, CommunityCare, Mending Health and UnitedHealthcare list Margaret Hart 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 Margaret Hart affiliated with any hospitals?
According to CMS data, Margaret Hart 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 Margaret Hart was last updated on August 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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. Margaret Jean Hart, D.O · NPI 1942426689
Family Medicine physician in Muskogee, Oklahoma. Individual provider, active in the CMS NPPES registry since April 18, 2007.
## Identity
- **NPI:** 1942426689 (Entity type: Individual)
- **Enumerated:** April 18, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 9069 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 3332 W OKMULGEE ST, Muskogee, OK 74401-5069
- **Phone:** (918) 682-2481 · **Fax:** (918) 682-2932
## 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): Warren Clinic Inc (NPI 1174582282, Tulsa, OK); Immaculate Heart Of Mary Family Health Center (NPI 1508469453, Chandler, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oklahoma State University College Of Osteopathic Medicine, class of 2006
## Record status
- **NPPES last updated:** August 8, 2025
- **Other identifiers:** Other 080021293 (MN)
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Source: [NPI Profile](https://npiprofile.com/npi/1942426689) · Data from the CMS NPPES public registry.