MARY H DUFF MD
NPI 1952410862
Obstetrics & Gynecology in Springfield, MO
About Mary H Duff Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY H DUFF MD (NPI 1952410862) is an individual obstetrics & gynecology provider in Springfield, Missouri, licensed in Kansas (04-29559) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with Cox Medical Centers, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1998).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 7
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
Mary H Duff Md 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 Mary Duff reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Springfield, MO 65807
- Reassigned Medicare billing, Missouri enrollment
- 457 clinicians in this Medicare group
Springfield, MO 65807
- Reassigned Medicare billing, Missouri enrollment
- 239 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Cox Medical Centers
Acute Care Hospitals · Springfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 65807 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SPRINGFIELD, MO 65807
SPRINGFIELD, MO 65807
SPRINGFIELD, MO 65807
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 Mary Duff's NPI number?
The NPI number for Mary Duff is 1952410862. It was assigned to this individual provider in the NPPES registry on August 30, 2006. The provider is also known as Mary T Hendricks.
Where is Mary Duff located?
Mary Duff practices at 1000 E Primrose St Suite 400, Springfield, MO 65807. The listed phone number is (417) 269-7900.
What is Mary Duff's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Mary Duff enrolled in Medicare?
Yes. Mary Duff 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 Mary Duff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Duff reassigns Medicare benefits to 2 organizations: Lester E Cox Medical Centers (Springfield, MO) and Lester E Cox Medical Centers (Springfield, MO). 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 Mary Duff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Duff accept?
Health plans from Anthem Blue Cross and Blue Shield, Cox HealthPlans and Oscar Insurance Company list Mary Duff 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 Mary Duff affiliated with any hospitals?
According to CMS data, Mary Duff is affiliated with Cox Medical Centers.
When was this NPI record last updated?
The NPPES record for Mary Duff was last updated on July 3, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Mary H Duff, MD · NPI 1952410862
Obstetrics & Gynecology physician in Springfield, Missouri. Individual provider, active in the CMS NPPES registry since August 30, 2006.
## Identity
- **NPI:** 1952410862 (Entity type: Individual)
- **Enumerated:** August 30, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 04-29559 (Kansas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 E PRIMROSE ST, SUITE 400, Springfield, MO 65807-5154
- **Phone:** (417) 269-7900 · **Fax:** (417) 269-7990
## 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): Lester E Cox Medical Centers (NPI 1801837505, Springfield, MO); Lester E Cox Medical Centers (NPI 1588100390, Springfield, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Kansas School Of Med, class of 1998
## Record status
- **NPPES last updated:** July 3, 2012
- **Other identifiers:** Medicare UPIN H60181; Medicaid 205842107 (MO); Other 31357012 (MO); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1952410862) · Data from the CMS NPPES public registry.