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DR. GAMAL MOHAMED KHALIL MAREY M.D.
NPI 1548418759
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Stockton, CA

Active since August 29, 2008PECOS EnrolledAccepts Medicare Assignment
530 W ACACIA ST STE 1, STOCKTON, CA 95203(209) 242-7098 Get Directions Write a Review

NPPES record last updated: March 26, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 26, 2025, Dec 5, 2023, Jun 30, 2020 and 1 more (4 updates tracked since 2018).

About Dr. Gamal Mohamed Khalil Marey M.d. NPPES

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

DR. GAMAL MOHAMED KHALIL MAREY M.D. (NPI 1548418759) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Stockton, California, licensed in California (174119) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2003).

NPPES Registry Identity

NPI1548418759
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameDR. GAMAL MOHAMED KHALIL MAREYCredential: M.D.
Location Address530 W ACACIA ST STE 1Stockton, CA 95203-2400
Mailing Address530 W Acacia St Ste 1Stockton, CA 95203-2400
Phone(209) 242-7098
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateAugust 29, 2008
Last NPPES UpdateMarch 26, 20254 updates tracked since enumeration
NPPES CertifiedMarch 26, 2025
✔ NPI 1548418759 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
Licenses✔ Licensed in CA · 174119✔ Licensed in VA · 0101269316
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
530 W ACACIA ST STE 1, Stockton, CA 95203
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Priority Health.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

Dr. Gamal Mohamed Khalil Marey M.d. 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 ID2062785330
PECOS Enrollment IDI20230607002630, I20230911004119
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

6

Medicare enrollment records show Gamal Marey reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

American Specialty Physicians Group Inc
28 mi
Emergency Medicine
700 17TH ST STE 205
Modesto, CA 95354
  • Reassigned Medicare billing, California enrollment
  • 180 clinicians in this Medicare group
NPI 1164363024 (877) 346-2211
Rockford Health Physicians
1,721 mi
Anesthesiology
2400 N ROCKTON AVE
Rockford, IL 61103
  • Reassigned Medicare billing, Illinois enrollment
  • 1,375 clinicians in this Medicare group
NPI 1023275278 (815) 971-5000
Mclaren Central Michigan
1,939 mi
General Acute Care Hospital
1221 SOUTH DR
Mt Pleasant, MI 48858
  • Reassigned Medicare billing, Michigan enrollment
  • 321 clinicians in this Medicare group
NPI 1245266063 (989) 772-6700
Mymichigan Medical Center Saginaw
1,972 mi
Family Medicine
1600 BRADY ST
Chesaning, MI 48616
  • Reassigned Medicare billing, Michigan enrollment
  • 125 clinicians in this Medicare group
NPI 1427112101 (989) 845-1800
Bon Secours Medical Group Hampton Roads Specialty Care LLC
2,378 mi
Cardiovascular Disease
8580 MAGELLAN PKWY
Richmond, VA 23227
  • Reassigned Medicare billing, Virginia enrollment
  • 386 clinicians in this Medicare group
NPI 1629637475 (804) 627-5573
Bon Secours Medical Group Richmond Specialty Care LLC
2,378 mi
Cardiovascular Disease
8580 MAGELLAN PKWY
Richmond, VA 23227
  • Reassigned Medicare billing, Virginia enrollment
  • 581 clinicians in this Medicare group
NPI 1477112225 (804) 627-5573

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 3

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
19 services19 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
18 services18 patients
Coronary artery bypass using artery graft, 1 graft 33533
A coronary artery bypass with one artery graft is a surgical procedure to improve blood flow to your heart. An artery from another part of your body is used to bypass a blocked or narrowed coronary artery. This can help reduce chest pain and risk of heart attack.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95203 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
$176.60 typical visit price
range $58.87 – $176.60
Typical copayment $44.15 (range $14.71 – $44.15)
Most-billed visit code 99205
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
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 3

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

MRS. MARY CATHERINE RAYMOND FNP
Nurse Practitioner (Family)
530 W ACACIA ST STE 1
STOCKTON, CA 95203
San Joaquin County (209) 944-5410
DR. MINGHUI LIU MD, PHD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
530 W ACACIA ST STE 1
STOCKTON, CA 95203
San Joaquin County (209) 242-7098
ADVENTIST HEALTH PHYSICIANS NETWORK
Surgery
530 W ACACIA ST STE 1
STOCKTON, CA 95203
San Joaquin County (209) 242-7098

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 Gamal Marey's NPI number?

The NPI number for Gamal Marey is 1548418759. It was assigned to this individual provider in the NPPES registry on August 29, 2008.

Where is Gamal Marey located?

Gamal Marey practices at 530 W Acacia St Ste 1, Stockton, CA 95203. The listed phone number is (209) 242-7098.

What is Gamal Marey's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Gamal Marey enrolled in Medicare?

Yes. Gamal Marey 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 Gamal Marey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gamal Marey reassigns Medicare benefits to 6 organizations: American Specialty Physicians Group Inc (Modesto, CA), Rockford Health Physicians (Rockford, IL), Mclaren Central Michigan (Mt Pleasant, MI), Mymichigan Medical Center Saginaw (Chesaning, MI), Bon Secours Medical Group Hampton Roads Specialty Care LLC (Richmond, VA) and 1 more organization, listed in the Medicare section above. 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 Gamal Marey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gamal Marey accept?

Health plans from Priority Health list Gamal Marey 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 Gamal Marey was last updated on March 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.