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DEREK RAINWATER MD
NPI 1548767437
Internal Medicine - Endocrinology, Diabetes & Metabolism in Bossier City, LA

Active since April 09, 2018PECOS Enrolled
5341 AIRLINE DRIVE, SUITE 100, BOSSIER CITY, LA 71111(318) 935-1810(318) 935-1867 Get Directions Write a Review

NPPES record last updated: January 30, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 30, 2026, Apr 9, 2018 (2 updates tracked since 2018).

About Derek Rainwater Md NPPES

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

DEREK RAINWATER MD (NPI 1548767437) is an individual endocrinology, diabetes & metabolism provider in Bossier City, Louisiana, licensed in Louisiana (324395) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Natchitoches Regional Medical Center, and maintains a secondary practice location in Jonesboro.

NPPES Registry Identity

NPI1548767437
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDEREK RAINWATERCredential: MD
Location Address5341 AIRLINE DRIVE, SUITE 100Bossier City, LA 71111
Mailing Address5341 Airline Drive, Suite 100Bossier City, LA 71111 · (318) 935-1810 · Fax (318) 935-1867
Phone(318) 935-1810
Fax(318) 935-1867
Sole ProprietorYes
Medical School CMSLouisiana State University School Of Medicine In ShreveportGraduated 2018
Enumeration DateApril 9, 2018
Last NPPES UpdateJanuary 30, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 30, 2026
✔ NPI 1548767437 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in LA · 324395
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
5341 AIRLINE DRIVE, Bossier City, LA 71111
Open in Google Maps ↗

Secondary Practice Location 1

Location 1244 Bond StJonesboro, LA 71251-5334 · Phone (318) 259-1100 · Fax (318) 259-1333

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Derek Rainwater Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID244584662
PECOS Enrollment IDI20201210000224
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

3

Medicare enrollment records show Derek Rainwater reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wk Swan Lake Diabetes & Endocrinology
Same address
Endocrinology, Diabetes & Metabolism
5341 AIRLINE DRIVE, SUITE 100
Bossier City, LA 71111
  • Reassigned Medicare billing, Louisiana enrollment
NPI 1326730573 (318) 935-1810
Mercy Medical Health Center
47 mi
Federally Qualified Health Center (FQHC)
600 FACTORY OUTLET DR STE 12
Arcadia, LA 71001
  • Reassigned Medicare billing, Louisiana enrollment
  • 16 clinicians in this Medicare group
NPI 1184453748 (318) 781-2310
Louisiana Family Medicine Clinic 1
63 mi
Clinic/Center
103 WATTS ST
Jonesboro, LA 71251
  • Reassigned Medicare billing, Louisiana enrollment
  • 10 clinicians in this Medicare group
NPI 1548538200 (318) 259-1569

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 5

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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
191 services88 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
138 services45 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
108 services108 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
84 services53 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment 95250
This process involves a tiny sensor placed under your skin that checks your blood sugar levels in tissue fluid regularly. The sensor sends these readings to a device, allowing you to track your levels in real-time. This is provided by your healthcare provider.
16 services16 patients

Hospital Affiliations CMS Care Compare 2

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

Natchitoches Regional Medical Center

Acute Care Hospitals · Natchitoches, LA
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number190007
Location501 Keyser AveNatchitoches, LA 71457 · Natchitoches County
Emergency services Birthing friendly

Willis Knighton Medical Center

Acute Care Hospitals · Shreveport, LA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190111
Location2600 Greenwood RoadShreveport, LA 71103 · Caddo County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 71111 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
$124.60 typical visit price
range $53.43 – $164.73
Typical copayment $31.15 (range $13.35 – $41.18)
Most-billed visit code 99204
Established Patient
$95.09 typical visit price
range $16.64 – $133.62
Typical copayment $23.77 (range $4.16 – $33.40)
Most-billed visit code 99214
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

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

WK SWAN LAKE DIABETES & ENDOCRINOLOGY
Internal Medicine (Endocrinology, Diabetes & Metabolism)
5341 AIRLINE DRIVE, SUITE 100
BOSSIER CITY, LA 71111
Bossier Parish (318) 935-1810

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 Derek Rainwater's NPI number?

The NPI number for Derek Rainwater is 1548767437. It was assigned to this individual provider in the NPPES registry on April 9, 2018.

Where is Derek Rainwater located?

Derek Rainwater practices at 5341 Airline Drive Suite 100, Bossier City, LA 71111. The listed phone number is (318) 935-1810.

What is Derek Rainwater's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Derek Rainwater enrolled in Medicare?

Yes. Derek Rainwater is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Derek Rainwater's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Derek Rainwater reassigns Medicare benefits to 3 organizations: Wk Swan Lake Diabetes & Endocrinology (Bossier City, LA), Mercy Medical Health Center (Arcadia, LA) and Louisiana Family Medicine Clinic 1 (Jonesboro, LA). 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 Derek Rainwater's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Derek Rainwater accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Blue Cross and Blue Shield of Louisiana and 2 other insurers list Derek Rainwater 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 Derek Rainwater affiliated with any hospitals?

According to CMS data, Derek Rainwater is affiliated with Natchitoches Regional Medical Center and Willis Knighton Medical Center.

When was this NPI record last updated?

The NPPES record for Derek Rainwater was last updated on January 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.