DR. JOHN THEODORE HOFF M.D.
NPI 1073540951
Obstetrics & Gynecology - Gynecologic Oncology in Saint Louis, MO
About Dr. John Theodore Hoff M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN THEODORE HOFF M.D. (NPI 1073540951) is an individual gynecologic oncology provider in Saint Louis, Missouri, licensed in Missouri (2010014078) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Ssm St Joseph Health Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 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. John Theodore Hoff M.d. 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 John Hoff reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 697 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 8
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm St Joseph Health Center
Acute Care Hospitals · Saint Charles, MOSsm Health St Mary's Hospital - St Louis
Acute Care Hospitals · Richmond Heights, MOSsm Health Depaul Hospital St Louis
Acute Care Hospitals · Bridgeton, MOSt Lukes Hospital
Acute Care Hospitals · Chesterfield, MOSsm St Joseph Hospital West
Acute Care Hospitals · Lake Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63117 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
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 Hoff's NPI number?
The NPI number for John Hoff is 1073540951. It was assigned to this individual provider in the NPPES registry on June 27, 2006.
Where is John Hoff located?
John Hoff practices at 1031 Bellevue Ave Ste 400, Saint Louis, MO 63117. The listed phone number is (314) 781-8605.
What is John Hoff's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.
Is John Hoff enrolled in Medicare?
Yes. John Hoff 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 John Hoff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Hoff reassigns Medicare benefits to 2 organizations: Ssm Health Care Group (Saint Louis, MO) and Ssm Medical Group, Inc. (Fenton, 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 John Hoff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Hoff accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list John Hoff 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 John Hoff affiliated with any hospitals?
According to CMS data, John Hoff is affiliated with Ssm St Joseph Health Center, Ssm Health St Mary's Hospital - St Louis, Ssm Health Depaul Hospital St Louis, St Lukes Hospital and Ssm St Joseph Hospital West.
When was this NPI record last updated?
The NPPES record for John Hoff was last updated on October 11, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. John Theodore Hoff, M.D. · NPI 1073540951
Gynecologic Oncology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 27, 2006.
## Identity
- **NPI:** 1073540951 (Entity type: Individual)
- **Enumerated:** June 27, 2006
- **Primary specialty:** Obstetrics & Gynecology - Gynecologic Oncology · taxonomy 207VX0201X
- **State license:** 2010014078 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1031 BELLEVUE AVE STE 400, Saint Louis, MO 63117-1858
- **Phone:** (314) 781-8605 · **Fax:** (314) 781-2840
## 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): Ssm Health Care Group (NPI 1306589544, Saint Louis, MO); Ssm Medical Group, Inc. (NPI 1700966207, Fenton, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 2006
## Record status
- **NPPES last updated:** October 11, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1073540951) · Data from the CMS NPPES public registry.