JOHN FLO
NPI 1033579826
Psychiatry & Neurology - Psychiatry in Hannibal, MO

Active since March 07, 2016PECOS EnrolledAccepts Medicare Assignment
6500 HOSPITAL DR, HANNIBAL, MO 63401(573) 629-3503(573) 629-3515 Get Directions Write a Review

NPPES record last updated: April 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 7, 2026, Feb 26, 2025, Oct 22, 2023 and 1 more (4 updates tracked since 2021).

About John Flo NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN FLO (NPI 1033579826) is an individual psychiatry provider in Hannibal, Missouri, licensed in Missouri (2021010443) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Hannibal Regional Hospital, and maintains a secondary practice location in Saint Louis.

NPPES Registry Identity

NPI1033579826
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameJOHN FLO
Location Address6500 HOSPITAL DRHannibal, MO 63401-6890
Mailing AddressPo Box 1239Hannibal, MO 63401-1239 · (573) 629-3503 · Fax (573) 629-3515
Fax(573) 629-3515
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2019
Enumeration DateMarch 7, 2016
Last NPPES UpdateApril 7, 20264 updates tracked since enumeration
NPPES CertifiedApril 7, 2026
✔ NPI 1033579826 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in MO · 2021010443
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
6500 HOSPITAL DR, Hannibal, MO 63401

Secondary Practice Location 1

Location 19890 Clayton Rd Ste 100Saint Louis, MO 63124-1685 · Phone (314) 907-0377 · Fax (314) 228-7751

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

John Flo 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.

PECOS PAC ID5092049247
PECOS Enrollment IDI20250306003052
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show John Flo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
6500 HOSPITAL DRIVE
Hannibal, MO 63401
  • Reassigned Medicare billing, Missouri enrollment
  • 149 clinicians in this Medicare group
Psychiatry
8-10 W 37TH ST, FL 5
New York, NY 10018
  • Reassigned Medicare billing, Missouri enrollment
  • Medicare enrollment name: Radial Health Florida PA
  • 6 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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hannibal Regional Hospital

Acute Care Hospitals · Hannibal, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260025
Location6000 Hospital DrHannibal, MO 63401 · Marion County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$161.24 typical visit price
range $52.28 – $161.24
Typical copayment $40.31 (range $13.07 – $40.31)
Most-billed visit code 99205
Established Patient
$65.71 typical visit price
range $16.30 – $131.05
Typical copayment $16.42 (range $4.07 – $32.76)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Nurse Practitioner (Family)
6500 HOSPITAL DR
HANNIBAL, MO 63401
Family Medicine
6500 HOSPITAL DR, FAMILY MEDICINE
HANNIBAL, MO 63401
Internal Medicine (Pulmonary Disease)
6500 HOSPITAL DR
HANNIBAL, MO 63401
Nurse Practitioner (Gerontology)
6500 HOSPITAL DR
HANNIBAL, MO 63401
Clinic/Center (Rural Health)
6500 HOSPITAL DR
HANNIBAL, MO 63401
Internal Medicine
6500 HOSPITAL DR
HANNIBAL, MO 63401
Nurse Practitioner (Family)
6500 HOSPITAL DR
HANNIBAL, MO 63401
Physician Assistant
6500 HOSPITAL DR
HANNIBAL, MO 63401

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 Flo's NPI number?

The NPI number for John Flo is 1033579826. It was assigned to this individual provider in the NPPES registry on March 7, 2016.

Where is John Flo located?

John Flo practices at 6500 Hospital Dr, Hannibal, MO 63401. The listed phone number is (573) 629-3503.

What is John Flo's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is John Flo enrolled in Medicare?

Yes. John Flo 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 Flo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Flo reassigns Medicare benefits to 2 organizations: Hannibal Regional Healthcare System, Inc (Hannibal, MO) and Radial Health Florida, P.A. (New York, NY). 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 Flo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Flo 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 3 other insurers list John Flo 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 Flo affiliated with any hospitals?

According to CMS data, John Flo is affiliated with Hannibal Regional Hospital.

When was this NPI record last updated?

The NPPES record for John Flo was last updated on April 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.