HILLARY SIMS
NPI 1952727315
Pathology - Anatomic Pathology & Clinical Pathology in Hattiesburg, MS

Q: What is Hillary Sims's NPI number?

The NPI number for Hillary Sims is 1952727315. It was assigned to this individual provider in the NPPES registry on March 10, 2014.

Q: What is Hillary Sims'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 Hillary Sims was last updated on April 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since March 10, 2014PECOS EnrolledAccepts Medicare Assignment

421 S 28TH AVE STE 310, HATTIESBURG, MS 39401(601) 579-5261(601) 579-5240 Get Directions Write a Review

NPPES record last updated: April 27, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 27, 2022, Jan 24, 2020 (2 updates tracked since 2020).

On this page

About Hillary Sims NPPES

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

HILLARY SIMS (NPI 1952727315) is an individual anatomic pathology & clinical pathology provider in Hattiesburg, Mississippi, licensed in Mississippi (25032) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS, is affiliated with Forrest General Hospital, and is a graduate of University Of Mississippi School Of Medicine (2013).

NPPES Registry Identity

NPI1952727315

Entity TypeIndividualFemale

Primary Taxonomy207ZP0102X

Provider Legal NameHILLARY SIMS

Location Address421 S 28TH AVE STE 310Hattiesburg, MS 39401-7208

Mailing Address415 S 28th AveHattiesburg, MS 39401-7246 · (601) 579-5261 · Fax (601) 579-5240

Phone(601) 579-5261

Fax(601) 579-5240

Sole ProprietorNo

Medical School CMSUniversity Of Mississippi School Of MedicineGraduated 2013

Enumeration DateMarch 10, 2014

Last NPPES UpdateApril 27, 20222 updates tracked since enumeration

NPPES CertifiedApril 27, 2022

✔ NPI 1952727315 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

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

Taxonomy Code207ZP0102X

License✔ Licensed in MS · 25032

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.

421 S 28TH AVE STE 310, Hattiesburg, MS 39401

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Other Identifiers 1

Medicaid00250771MS

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare.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

Hillary Sims 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 ID6800221359

PECOS Enrollment IDI20200110002296

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 Hillary Sims reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hattiesburg Clinic PA

Same address

Obstetrics & Gynecology

421 S 28TH AVE, SUITE 200
Hattiesburg, MS 39401

Reassigned Medicare billing, Mississippi enrollment
696 clinicians in this Medicare group

NPI 1982785820 (601) 268-5640

Hub Care Pathology, P.A.

2.7 mi

Anatomic Pathology & Clinical Pathology

5052 W 4TH ST
Hattiesburg, MS 39402

Reassigned Medicare billing, Mississippi enrollment
20 clinicians in this Medicare group

NPI 1043324767 (601) 261-2587

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 32

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.

1,513 services811 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

667 services455 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.

320 services117 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.

206 services148 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.

186 services171 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.

173 services137 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.

137 services133 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.

127 services105 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.

100 services94 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.

86 services48 patients

Cell examination of specimen, selective cellular enhancement technique 88112

73 services71 patients

Special stained specimen slides to examine tissue, initial procedure 88342

67 services61 patients

Evaluation of fine needle aspirate with interpretation and report 88173

This procedure involves using a thin needle to collect a small sample from an abnormal area or lump. The sample is then examined under a microscope to identify any potential issues. A report of the findings is provided for further analysis.

60 services27 patients

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

53 services52 patients

Blood smear interpretation by physician with written report 85060

Blood smear interpretation is a lab test where your doctor examines a sample of your blood under a microscope. They look for abnormalities in your blood cells which can help diagnose various conditions. You'll receive a written report of the findings.

52 services51 patients

Pathology examination of specimen during surgery, each additional tissue block 88332

During surgery, a pathology examination may be done on additional tissue blocks. This involves taking small samples of tissue and examining them under a microscope. This helps identify any abnormal cells or diseases present, aiding in the precise diagnosis and treatment planning.

52 services29 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.

45 services31 patients

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

41 services16 patients

Microscopic genetic analysis of tumor, manual 88360

Microscopic genetic analysis of a tumor involves examining your tumor's genes under a microscope. This helps identify specific genetic changes in the tumor cells. This information can aid in diagnosing, predicting disease progression, and determining the most effective treatment options.

39 services16 patients

Pathology examination of specimen during surgery, first tissue block 88331

36 services24 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.

36 services36 patients

Microscopic genetic analysis of tumor, manual 88360

34 services16 patients

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

32 services29 patients

Special stained specimen slides to examine tissue, each multiplex procedure 88344

Special stained specimen slides are used to study tissue in detail. This multiplex procedure involves applying different dyes to the tissue sample on a slide to highlight specific elements. These colors help identify any abnormalities in the tissue, aiding in accurate diagnosis and treatment planning.

32 services20 patients

Bone marrow, smear interpretation 85097

Bone marrow smear interpretation is a procedure where a small sample of your bone marrow is taken and examined under a microscope. This helps doctors identify any abnormal cells or signs of diseases such as anemia, leukemia, or infections. It's a crucial step in diagnosing various blood disorders.

29 services29 patients

Evaluation of fine needle aspirate with interpretation and report 88173

26 services26 patients

Biopsy and aspiration of bone marrow sample for diagnosis 38222

A bone marrow biopsy and aspiration is a procedure where a small amount of bone marrow is removed for testing. It involves inserting a needle into a bone, typically the hip, to collect a sample. It can help diagnose various diseases and monitor treatment effectiveness.

20 services20 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.

19 services18 patients

Pathology cytologic examination of specimen during surgery, initial site 88333

A pathology cytologic examination during surgery involves taking a small sample of cells from the initial site of concern. This sample is then examined under a microscope by a pathologist to check for any abnormal or disease-causing cells. This helps guide the ongoing surgical procedure.

14 services13 patients

Pathology examination of tissue using a microscope 88302

A pathology examination of tissue involves studying a small sample of your body's cells under a microscope. This helps identify any abnormalities or diseases, such as cancer. The process is crucial for accurate diagnosis and treatment planning.

13 services12 patients

Genetic sequencing localization, each additional procedure 88364

Genetic sequencing localization is a process where specific regions of your DNA are identified and studied. If you're having additional procedures, it simply means that more areas of your DNA are being examined. This helps to understand your genetic makeup better and can assist in identifying potential health risks.

13 services12 patients

Genetic sequencing localization, initial procedure 88365

Genetic sequencing localization is a process to identify where specific genes are located in your DNA. During the initial procedure, a sample of your cells is collected, usually through a simple swab or blood test. This data is then analyzed to pinpoint the location of certain genes. This can help understand your genetic makeup and potential health risks.

13 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Forrest General Hospital

Acute Care Hospitals · Hattiesburg, MS

1/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number250078

Location6051 Us Highway 49 SouthHattiesburg, MS 39404 · Forrest County

Emergency services Birthing friendly

Highland Community Hospital

Acute Care Hospitals · Picayune, MS

2/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number250117

Location130 Highland PkwyPicayune, MS 39466 · Pearl River County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 39401 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.

Other Providers at the Same Location NPPES

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

SHAWN LEDOUX

Pathology (Clinical Pathology)

421 S 28TH AVE STE 310
HATTIESBURG, MS 39401

Forrest County (601) 579-5261

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 Hillary Sims's NPI number?

The NPI number for Hillary Sims is 1952727315. It was assigned to this individual provider in the NPPES registry on March 10, 2014.

Where is Hillary Sims located?

Hillary Sims practices at 421 S 28th Ave Ste 310, Hattiesburg, MS 39401. The listed phone number is (601) 579-5261.

What is Hillary Sims's specialty?

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

Is Hillary Sims enrolled in Medicare?

Yes. Hillary Sims 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 organizations bill Medicare for Hillary Sims's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hillary Sims reassigns Medicare benefits to 2 organizations: Hattiesburg Clinic PA (Hattiesburg, MS) and Hub Care Pathology, P.A. (Hattiesburg, MS). 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 Hillary Sims's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hillary Sims accept?

Health plans from Cigna Healthcare list Hillary Sims 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 Hillary Sims affiliated with any hospitals?

According to CMS data, Hillary Sims is affiliated with Forrest General Hospital and Highland Community Hospital.

When was this NPI record last updated?

The NPPES record for Hillary Sims was last updated on April 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.