DR. MALLORY BLAKESLEE D.O.
NPI 1932516945
Emergency Medicine in Gulfport, MS

Active since July 22, 2014PECOS Enrolled
4500 13TH ST, GULFPORT, MS 39501(228) 575-2000 Get Directions Write a Review

NPPES record last updated: April 8, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mallory Blakeslee D.o. NPPES

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

DR. MALLORY BLAKESLEE D.O. (NPI 1932516945) is an individual emergency medicine provider in Gulfport, Mississippi, licensed in Mississippi (25885) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932516945
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. MALLORY BLAKESLEECredential: D.O.
Location Address4500 13TH STGulfport, MS 39501-2569
Mailing Address4500 13th StGulfport, MS 39501-2569 · (228) 575-2000
Sole ProprietorNo
Enumeration DateJuly 22, 2014
Last NPPES UpdateApril 8, 2020
NPPES CertifiedApril 8, 2020
✔ NPI 1932516945 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in MS · 25885✔ Licensed in OK · 52R
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
4500 13TH ST, Gulfport, MS 39501

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mallory Blakeslee D.o. 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 Reassignments

3

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

General Acute Care Hospital
4500 13TH ST
Gulfport, MS 39501
  • Reassigned Medicare billing, Mississippi enrollment
  • 731 clinicians in this Medicare group
Internal Medicine
200 W TYLER AVE
West Memphis, AR 72301
  • Reassigned Medicare billing, Oklahoma enrollment
  • 79 clinicians in this Medicare group
Emergency Medicine
1000 N LEE AVE
Oklahoma City, OK 73102
  • Reassigned Medicare billing, Oklahoma enrollment
  • Medicare enrollment name: Emergency Physicians Of Mid-America PC
  • 310 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 4

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
215 services207 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
182 services175 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
94 services91 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
57 services56 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 39501 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
$80.50 typical visit price
range $51.65 – $159.18
Typical copayment $20.12 (range $12.91 – $39.79)
Most-billed visit code 99203
Established Patient
$92.20 typical visit price
range $16.15 – $129.61
Typical copayment $23.05 (range $4.03 – $32.40)
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 20

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

Nurse Practitioner
4500 13TH ST
GULFPORT, MS 39501
Nurse Anesthetist, Certified Registered
4500 13TH ST
GULFPORT, MS 39501
Nurse Practitioner (Acute Care)
4500 13TH ST
GULFPORT, MS 39501
Nurse Practitioner (Acute Care)
4500 13TH ST
GULFPORT, MS 39501
Nurse Practitioner (Acute Care)
4500 13TH ST
GULFPORT, MS 39501
Physician Assistant (Surgical)
4500 13TH ST
GULFPORT, MS 39501
Anesthesiology
4500 13TH ST
GULFPORT, MS 39501
Dietitian, Registered
4500 13TH ST
GULFPORT, MS 39501

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 Mallory Blakeslee's NPI number?

The NPI number for Mallory Blakeslee is 1932516945. It was assigned to this individual provider in the NPPES registry on July 22, 2014.

Where is Mallory Blakeslee located?

Mallory Blakeslee practices at 4500 13th St, Gulfport, MS 39501. The listed phone number is (228) 575-2000.

What is Mallory Blakeslee's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Mallory Blakeslee enrolled in Medicare?

Yes. Mallory Blakeslee is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mallory Blakeslee's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mallory Blakeslee reassigns Medicare benefits to 3 organizations: Memorial Hospital At Gulfport (Gulfport, MS), Hospital Care Consultants Region II Inc (West Memphis, AR) and Emergency Physicians Of Mid-America, P.C. (Oklahoma City, OK). 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 Mallory Blakeslee's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mallory Blakeslee accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 1 other insurer list Mallory Blakeslee 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.

When was this NPI record last updated?

The NPPES record for Mallory Blakeslee was last updated on April 8, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.