DR. JOHN H MALLETT MD
NPI 1659317873
Obstetrics & Gynecology in Biloxi, MS
About Dr. John H Mallett Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN H MALLETT MD (NPI 1659317873) is an individual obstetrics & gynecology provider in Biloxi, Mississippi, licensed in Mississippi (11052) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Merit Health Biloxi, and is a graduate of University Of Mississippi School Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 H Mallett 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 John Mallett reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Biloxi, MS 39530
- Reassigned Medicare billing, Mississippi enrollment
- 9 clinicians in this Medicare group
Biloxi, MS 39532
- Reassigned Medicare billing, Mississippi enrollment
- 731 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Merit Health Biloxi
Acute Care Hospitals · Biloxi, MSMemorial Hospital At Gulfport
Acute Care Hospitals · Gulfport, MSSinging River Health System
Acute Care Hospitals · Pascagoula, MSSinging River Gulfport
Acute Care Hospitals · Gulfport, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39530 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 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BILOXI, MS 39530
BILOXI, MS 39530
BILOXI, MS 39530
BILOXI, MS 39530
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 Mallett's NPI number?
The NPI number for John Mallett is 1659317873. It was assigned to this individual provider in the NPPES registry on June 22, 2006.
Where is John Mallett located?
John Mallett practices at 147 Reynoir St Ste 105, Biloxi, MS 39530. The listed phone number is (228) 436-6658.
What is John Mallett's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is John Mallett enrolled in Medicare?
Yes. John Mallett 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 Mallett's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Mallett reassigns Medicare benefits to 2 organizations: Biloxi Hma Physician Management LLC (Biloxi, MS) and Memorial Hospital At Gulfport (Biloxi, MS). 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 Mallett's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Mallett accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 4 other insurers list John Mallett 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 Mallett affiliated with any hospitals?
According to CMS data, John Mallett is affiliated with Merit Health Biloxi, Memorial Hospital At Gulfport, Singing River Health System and Singing River Gulfport.
When was this NPI record last updated?
The NPPES record for John Mallett was last updated on April 7, 2008. 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.
# Dr. John H Mallett, MD · NPI 1659317873
Obstetrics & Gynecology physician in Biloxi, Mississippi. Individual provider, active in the CMS NPPES registry since June 22, 2006.
## Identity
- **NPI:** 1659317873 (Entity type: Individual)
- **Enumerated:** June 22, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 11052 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 147 REYNOIR ST, STE 105, Biloxi, MS 39530
- **Phone:** (228) 436-6658 · **Fax:** (228) 432-9455
## 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): Biloxi Hma Physician Management LLC (NPI 1770537920, Biloxi, MS); Memorial Hospital At Gulfport (NPI 1609203173, Biloxi, MS) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Mississippi School Of Medicine, class of 1986
## Record status
- **NPPES last updated:** April 7, 2008
- **Other identifiers:** Medicaid 00115234 (MS); Medicare UPIN C68915
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Source: [NPI Profile](https://npiprofile.com/npi/1659317873) · Data from the CMS NPPES public registry.