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BRANDON ISAAC GRAYSON
NPI 1215678214
Anesthesiology in Hattiesburg, MS

Active since April 05, 2022PECOS Enrolled
415 S 28TH AVE, HATTIESBURG, MS 39401(601) 261-3606(601) 579-5383 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jul 13, 2026, Apr 5, 2022 (2 updates tracked since 2022).

About Brandon Isaac Grayson NPPES

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

BRANDON ISAAC GRAYSON (NPI 1215678214) is an individual anesthesiology provider in Hattiesburg, Mississippi, licensed in Mississippi (33363) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1215678214
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameBRANDON ISAAC GRAYSON
Location Address415 S 28TH AVEHattiesburg, MS 39401-7246
Mailing Address415 S 28th AveHattiesburg, MS 39401-7283 · (601) 264-6000
Phone(601) 261-3606
Fax(601) 579-5383
Sole ProprietorNo
Enumeration DateApril 5, 2022
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPPES CertifiedJuly 13, 2026
✔ NPI 1215678214 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in MS · 33363
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
415 S 28TH AVE, Hattiesburg, MS 39401
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Brandon Isaac Grayson is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Brandon Grayson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hattiesburg Clinic PA
Same address
Nephrology
415 S 28TH AVE
Hattiesburg, MS 39401
  • Reassigned Medicare billing, Mississippi enrollment
  • 696 clinicians in this Medicare group
NPI 1043392459 (601) 268-5700

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

DR. FRANK JOSEPH HUX DO
Neurological Surgery
415 S 28TH AVE
HATTIESBURG, MS 39401
Forrest County (601) 579-5459
DARVIN L SIBLEY CRNA
Nurse Anesthetist, Certified Registered
415 S 28TH AVE
HATTIESBURG, MS 39401
Forrest County (601) 261-3606
CARL SCOTT RAMSEY M.D.
Anesthesiology
415 S 28TH AVE
HATTIESBURG, MS 39401
Forrest County (601) 261-3606
MANJUNATH RAMAIAH MD
Hospitalist
415 S 28TH AVE
HATTIESBURG, MS 39401
Forrest County (601) 288-4329
RALPH E ABRAHAM MD
Surgery
415 S 28TH AVE
HATTIESBURG, MS 39401
Forrest County (601) 268-5660
JOSHUA A MAKSI MD
Psychiatry & Neurology (Neurology)
415 S 28TH AVE
HATTIESBURG, MS 39401
Forrest County (601) 268-5620
KRISTEN SICARD SPRUILL M.D.
Anesthesiology
415 S 28TH AVE
HATTIESBURG, MS 39401
Forrest County (601) 261-3606
GEORGE E HABEEB JR. MD
Hospitalist
415 S 28TH AVE
HATTIESBURG, MS 39401
Forrest County (601) 288-4329

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 Brandon Grayson's NPI number?

The NPI number for Brandon Grayson is 1215678214. It was assigned to this individual provider in the NPPES registry on April 5, 2022.

Where is Brandon Grayson located?

Brandon Grayson practices at 415 S 28th Ave, Hattiesburg, MS 39401. The listed phone number is (601) 261-3606.

What is Brandon Grayson's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Brandon Grayson enrolled in Medicare?

Yes. Brandon Grayson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Brandon Grayson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brandon Grayson reassigns Medicare benefits to Hattiesburg Clinic PA (Hattiesburg, 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 Brandon Grayson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Brandon Grayson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.