KARLA PERRIZO MD
NPI 1588840706
Pathology - Anatomic Pathology & Clinical Pathology in Hattiesburg, MS

Q: What is Karla Perrizo's NPI number?

The NPI number for Karla Perrizo is 1588840706. It was assigned to this individual provider in the NPPES registry on January 17, 2008.

Q: What is Karla Perrizo's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Q: When was this NPI record last updated?

The NPPES record for Karla Perrizo was last updated on February 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since January 17, 2008PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

5052 W 4TH ST, HATTIESBURG, MS 39402(601) 261-2587(601) 264-7426 Get Directions Write a Review

NPPES record last updated: February 19, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 21, 2021, Aug 29, 2018 (2 updates tracked since 2018).

On this page

About Karla Perrizo Md NPPES

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

KARLA PERRIZO MD (NPI 1588840706) is an individual anatomic pathology & clinical pathology provider in Hattiesburg, Mississippi, licensed in Texas (N1415) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS, is affiliated with Merit Health River Region, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1588840706

Entity TypeIndividualFemale

Primary Taxonomy207ZP0102X

Provider Legal NameKARLA PERRIZOCredential: MD

Location Address5052 W 4TH STHattiesburg, MS 39402-1069

Mailing Address5052 W 4th StHattiesburg, MS 39402-1069 · (601) 261-2587 · Fax (601) 264-7426

Phone(601) 261-2587

Fax(601) 264-7426

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 2005

Enumeration DateJanuary 17, 2008

Last NPPES UpdateFebruary 19, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 19, 2026

✔ NPI 1588840706 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0102X

Licenses✔ Licensed in TX · N1415✔ Licensed in MS · 21832

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

5052 W 4TH ST, Hattiesburg, MS 39402

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Secondary Practice Locations 4

Location 1500 N Highland AveSherman, TX 75092-7354 · Phone (601) 261-2587 · Fax (601) 264-7426

Location 211104 W Airport BlvdStafford, TX 77477-3035 · Phone (601) 261-2587 · Fax (601) 264-7426

Location 32801 Franciscan DrBryan, TX 77802-2544 · Phone (979) 776-3777

Location 4305 N Highland AveSherman, TX 75092-7349 · Phone (601) 261-2587 · Fax (601) 264-7426

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 Health 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 and accepts Medicare assignment

Karla Perrizo 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.

PECOS PAC ID7618026923

PECOS Enrollment IDI20180806000385, I20220218000067

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

Medicare enrollment records show Karla Perrizo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hub Care Pathology, P.A.

Same address

Anatomic Pathology & Clinical Pathology

5052 W 4TH ST
Hattiesburg, MS 39402

Reassigned Medicare billing, Mississippi and Texas enrollments
20 clinicians in this Medicare group

NPI 1043324767 (601) 261-2587

Pathology Institute PLLC

414 mi

Anatomic Pathology & Clinical Pathology

3201 UNIVERSITY DR E STE 330
Bryan, TX 77802

Reassigned Medicare billing, Texas enrollment
3 clinicians in this Medicare group

NPI 1154922235 (979) 321-6290

Propath Associates, PLLC

451 mi

Anatomic Pathology & Clinical Pathology

1355 RIVER BEND DR
Dallas, TX 75247

Reassigned Medicare billing, Texas enrollment
77 clinicians in this Medicare group

NPI 1902885890 (214) 638-2000

Usa Pathology PLLC

452 mi

Anatomic Pathology & Clinical Pathology

305 N HIGHLAND AVE
Sherman, TX 75092

Reassigned Medicare billing, Texas enrollment
7 clinicians in this Medicare group

NPI 1609121557 (903) 328-2029

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 20

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

1,591 services833 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

826 services411 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

172 services55 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

168 services152 patients

Pathology examination of tissue using a microscope, moderately high complexity 88307

A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.

116 services90 patients

Pathology examination of tissue using a microscope, moderately low complexity 88304

A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.

112 services107 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

84 services29 patients

Pathology examination of tissue using a microscope, limited examination 88300

A pathology examination of tissue using a microscope is a procedure where a small sample of your tissue is observed under a microscope. This limited examination helps identify any abnormal cells or signs of disease, aiding in accurate diagnosis and treatment planning.

80 services66 patients

Cell examination of specimen, selective cellular enhancement technique 88112

Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.

65 services53 patients

Special stained specimen slides to examine tissue, initial procedure 88342

63 services54 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

59 services36 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

56 services39 patients

Pathology examination of tissue using a microscope, moderately low complexity 88304

54 services48 patients

Preparation of tissue for examination by removing any calcium present 88311

This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.

54 services50 patients

Microscopic genetic analysis of tumor, using computer-assisted technology 88361

Microscopic genetic analysis of a tumor uses advanced computer technology to examine the genetic makeup of the tumor cells. This helps to understand the tumor better and tailor a treatment plan. It's a non-invasive procedure and provides valuable insights for your healthcare team.

50 services14 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

34 services26 patients

Pathology examination of tissue using a microscope, high complexity 88309

A high complexity pathology examination involves studying body tissue under a microscope to identify any abnormalities. This intricate process helps in diagnosing various conditions and deciding on the best treatment plan.

22 services21 patients

Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method G0416

This procedure involves taking a small tissue sample from your gland located beneath your bladder. The sample is then examined under a microscope by a pathologist to check for any abnormalities or diseases. This is a standard method to ensure your well-being.

22 services22 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

20 services15 patients

Pathology examination of specimen during surgery, first tissue block 88331

A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.

16 services14 patients

Hospital Affiliations CMS Care Compare 5

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

Merit Health River Region

Acute Care Hospitals · Vicksburg, MS

2/5 CMS rating

OwnershipProprietary

CMS Certification Number250031

Location2100 Hwy 61 NVicksburg, MS 39183 · Warren County

Emergency services Birthing friendly

Merit Health Natchez

Acute Care Hospitals · Natchez, MS

2/5 CMS rating

OwnershipProprietary

CMS Certification Number250084

Location52 Sergeant Prentiss DriveNatchez, MS 39120 · Adams County

Emergency services Birthing friendly

Merit Health Wesley

Acute Care Hospitals · Hattiesburg, MS

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number250094

Location5001 W Hardy StHattiesburg, MS 39402 · Lamar County

Emergency services Birthing friendly

Jps Health Network

Acute Care Hospitals · Fort Worth, TX

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number450039

Location1500 S Main StFort Worth, TX 76104 · Tarrant County

Emergency services Birthing friendly

De Tar Hospital Navarro

Acute Care Hospitals · Victoria, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450147

Location506 E San Antonio StVictoria, TX 77901 · Victoria County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 39402 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

$120.41 typical visit price

range $51.65 – $159.18

Typical copayment $30.10 (range $12.91 – $39.79)

Most-billed visit code 99204

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.

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.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Other Providers at the Same Location NPPES 7

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

HUB CARE PATHOLOGY, P.A.

Pathology (Anatomic Pathology & Clinical Pathology)