DR. GREGORY THOMAS RAY MD, PHD
NPI 1730382425
Pathology - Anatomic Pathology & Clinical Pathology in Arlington, VA

Q: What is Gregory Ray's NPI number?

The NPI number for Gregory Ray is 1730382425. It was assigned to this individual provider in the NPPES registry on June 8, 2007.

Q: What is Gregory Ray'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 Gregory Ray was last updated on January 13, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 June 08, 2007PECOS EnrolledAccepts Medicare Assignment

45.1/100

CMS Quality Rating

1625 N GEORGE MASON DR, ARLINGTON, VA 22205(502) 456-7075(502) 456-4440 Get Directions Write a Review

NPPES record last updated: January 13, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Gregory Thomas Ray Md, Phd NPPES

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

DR. GREGORY THOMAS RAY MD, PHD (NPI 1730382425) is an individual anatomic pathology & clinical pathology provider in Arlington, Virginia, licensed in Virginia (0101251434) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Virginia Hospital Center, and is a graduate of Duke University School Of Medicine (2003).

NPPES Registry Identity

NPI1730382425

Entity TypeIndividualMale

Primary Taxonomy207ZP0102X

Provider Legal NameDR. GREGORY THOMAS RAYCredential: MD, PHD

Location Address1625 N GEORGE MASON DRArlington, VA 22205-3683

Mailing AddressPo Box 7308Arlington, VA 22207-0308 · (800) 292-1387 · Fax (502) 456-4440

Phone(502) 456-7075

Fax(502) 456-4440

Sole ProprietorNo

Medical School CMSDuke University School Of MedicineGraduated 2003

Enumeration DateJune 8, 2007

Last NPPES UpdateJanuary 13, 2017

✔ NPI 1730382425 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

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

Taxonomy Code207ZP0102X

License✔ Licensed in VA · 0101251434

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.

Also ListedPathology · Molecular Genetic PathologyTaxonomy 207ZP0007X · License 0101251434 (VA)

1625 N GEORGE MASON DR, Arlington, VA 22205

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Other Identifiers 5

Medicaid1730382425VA

Other1022-0012MD · Carefirst Bc/bs

Medicare PIN241481ZC70VA

Medicaid421267300MD

Medicaid051285400DC

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

Dr. Gregory Thomas Ray Md, Phd 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 ID9739255886

PECOS Enrollment IDI20120627000004

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 Gregory Ray reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cary Poropatich MD LLC

0.1 mi

Anatomic Pathology & Clinical Pathology

1701 N GEORGE MASON DR
Arlington, VA 22205

Reassigned Medicare billing, District of Columbia enrollment
7 clinicians in this Medicare group

NPI 1427567478 (703) 558-5000

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 15

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.

1,428 services583 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.

441 services218 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.

388 services277 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.

324 services94 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.

152 services119 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.

120 services39 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.

111 services88 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.

105 services71 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.

86 services35 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.

63 services58 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.

43 services38 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.

30 services30 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.

28 services28 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.

13 services13 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.

12 services12 patients

Hospital Affiliations CMS Care Compare

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

Virginia Hospital Center

Acute Care Hospitals · Arlington, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490050

Location1701 North George Mason DriveArlington, VA 22205 · Arlington County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22205 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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.

45.1/100

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

Individually scored

Quality

71.96

Improvement Activities

Cost

54.38

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. LUIS E. SANZ M.D.

Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)

1625 N GEORGE MASON DR, SUITE 475
ARLINGTON, VA 22205

Arlington County (703) 717-4000

AMANDA ELAINE ROHN MD

Obstetrics & Gynecology

1625 N GEORGE MASON DR, SUITE 325
ARLINGTON, VA 22205

Arlington County (703) 717-4600

MR. JOSEPH FRANCIS KIRBY JR. PA-C

Physician Assistant (Surgical)

1625 N GEORGE MASON DR, SUITE 288
ARLINGTON, VA 22205

Arlington County (703) 558-6491

DR. JOSEPH JOHN BUCHINO MD

Pathology (Anatomic Pathology & Clinical Pathology)

1625 N GEORGE MASON DR, PATHOLOGY DEPT
ARLINGTON, VA 22205

Arlington County (703) 558-5499

DR. JENNIFER LYNN KILMER M.D.

Obstetrics & Gynecology

1625 N GEORGE MASON DR, SUITE 465
ARLINGTON, VA 22205

Arlington County (703) 717-4050

DANIEL BOYD CASEY M.D.

Internal Medicine (Critical Care Medicine)

1625 N GEORGE MASON DR, SUITE 355
ARLINGTON, VA 22205

Arlington County (703) 521-6662

DR. JOHN W RHEE M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

1625 N GEORGE MASON DR, SUITE 288
ARLINGTON, VA 22205

Arlington County (703) 558-6491

DR. ELLSWORTH J STAY MD

Pathology (Anatomic Pathology & Clinical Pathology)

1625 N GEORGE MASON DR, PATHOLOGY DEPT
ARLINGTON, VA 22205

Arlington County (703) 558-6541

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 Gregory Ray's NPI number?

The NPI number for Gregory Ray is 1730382425. It was assigned to this individual provider in the NPPES registry on June 8, 2007.

Where is Gregory Ray located?

Gregory Ray practices at 1625 N George Mason Dr, Arlington, VA 22205. The listed phone number is (502) 456-7075.

What is Gregory Ray's specialty?

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

Is Gregory Ray enrolled in Medicare?

Yes. Gregory Ray 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 organization bills Medicare for Gregory Ray's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Ray reassigns Medicare benefits to Cary Poropatich MD LLC (Arlington, VA). 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 Gregory Ray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Gregory Ray affiliated with any hospitals?

According to CMS data, Gregory Ray is affiliated with Virginia Hospital Center.

When was this NPI record last updated?

The NPPES record for Gregory Ray was last updated on January 13, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.