MR. JOHN WILLIAM DOUGLAS MD
NPI 1972530335
Internal Medicine - Sleep Medicine in Gulfport, MS
About Mr. John William Douglas Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. JOHN WILLIAM DOUGLAS MD (NPI 1972530335) is an individual sleep medicine provider in Gulfport, Mississippi, licensed in Mississippi (8130) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital At Gulfport, and is a graduate of Louisiana State University School Of Medicine In New Orleans (1975).
NPPES Registry Identity
Specialties & Licenses 3
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
Mr. John William Douglas 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 Reassignment
Medicare enrollment records show John Douglas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Gulfport, MS 39503
- 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 10
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hospital At Gulfport
Acute Care Hospitals · Gulfport, MSSinging River Gulfport
Acute Care Hospitals · Gulfport, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 21
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
GULFPORT, MS 39503
GULFPORT, MS 39503
GULFPORT, MS 39503
GULFPORT, MS 39503
GULFPORT, MS 39503
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 Douglas's NPI number?
The NPI number for John Douglas is 1972530335. It was assigned to this individual provider in the NPPES registry on June 28, 2006.
Where is John Douglas located?
John Douglas practices at 15190 Community Rd Suite 220, Gulfport, MS 39503. The listed phone number is (228) 539-3356.
What is John Douglas's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.
Is John Douglas enrolled in Medicare?
Yes. John Douglas 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 organization bills Medicare for John Douglas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Douglas reassigns Medicare benefits to Memorial Hospital At Gulfport (Gulfport, MS). The 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 Douglas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Douglas accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 3 other insurers list John Douglas 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 Douglas affiliated with any hospitals?
According to CMS data, John Douglas is affiliated with Memorial Hospital At Gulfport and Singing River Gulfport.
When was this NPI record last updated?
The NPPES record for John Douglas was last updated on April 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mr. John William Douglas, MD · NPI 1972530335
Sleep Medicine physician in Gulfport, Mississippi. Individual provider, active in the CMS NPPES registry since June 28, 2006.
## Identity
- **NPI:** 1972530335 (Entity type: Individual)
- **Enumerated:** June 28, 2006
- **Primary specialty:** Internal Medicine - Sleep Medicine · taxonomy 207RS0012X
- **State license:** 8130 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 15190 COMMUNITY RD, SUITE 220, Gulfport, MS 39503-3485
- **Phone:** (228) 539-3356 · **Fax:** (228) 539-3225
## 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:** Memorial Hospital At Gulfport (NPI 1932122017, Gulfport, MS), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Louisiana State University School Of Medicine In New Orleans, class of 1975
## Record status
- **NPPES last updated:** April 10, 2023
- **Other identifiers:** Medicaid 00019714 (MS); Other 08130 (MS)
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Source: [NPI Profile](https://npiprofile.com/npi/1972530335) · Data from the CMS NPPES public registry.