GREGORY MARRUJO MD
NPI 1013076686
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Riverside, CA
NPI Status: Active since December 08, 2006
Contact Information
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
Phone: (909) 353-2000
- Individual
- Male
- Thoracic Surgery (Cardiothoracic Vascula...
- PECOS Enrolled
About GREGORY MARRUJO
This page provides the complete NPI Profile along with additional information for Gregory Marrujo, a provider established in Riverside, California with a medical specialization in Thoracic Surgery (cardiothoracic Vascular Surgery). The healthcare provider is registered in the NPI registry with number 1013076686 assigned on December 2006. The practitioner's primary taxonomy code is 208G00000X with license number G57292 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.
- NPI
- 1013076686
- Provider Name
- GREGORY MARRUJO MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 10800 MAGNOLIA AVE RIVERSIDE, CA 92505
- Location Phone
- (909) 353-2000
- Mailing Address
- 10800 MAGNOLIA AVE RIVERSIDE, CA 92505
- Mailing Phone
- (909) 353-2000
- Is Sole Proprietor?
- No
- Enumeration Date
- 12-08-2006
- Last Update Date
- 11-30-2021
- Code Navigator
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Thoracic Surgery (Cardiothoracic Vascular Surgery)
- Taxonomy Code
- 208G00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G57292
- License State
- CA
- Taxonomy Description
- 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.
Medicare Participation & PECOS Enrollment Status
Gregory Marrujo is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Physician Visit Costs
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 92505 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99205
- Average New Patient Price $179.42
- Minimum New Patient Price $59.6
- Maximum New Patient Price $179.42
- Average New Patient Copayment $44.85
- Minimum New Patient Copayment $14.9
- Maximum New Patient Copayment $44.85
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $74.08
- Minimum Established Patient Price $19.37
- Maximum Established Patient Price $146.42
- Average Established Patient Copayment $18.52
- Minimum Established Patient Copayment $4.84
- Maximum Established Patient Copayment $36.6
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
1 | 0 | 1 | 3 | 0 | 7 | 6 | 6 | 8 | 6 |
Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
2 | 0 | 2 | 3 | 0 | 7 | 12 | 6 | 16 | |
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
2 + 0 + 2 + 3 + 0 + 7 + 1 + 2 + 6 + 1 + 6 + 24 = 54 | |||||||||
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
60 - 54 = 6 | 6 |
The NPI number 1013076686 is valid because the calculated check digit 6 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
DR. LINCOLN J MAYNES MD
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DR. CATHLEEN J ORTIZ PHARM.D.
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DEBORAH J SAWAI PHARM D.
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10800 MAGNOLIA AVE
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ZIP 92505
ANDREW JANNETT PHARM.D.
Pharmacist
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
MR. RICKY K CHUI PHARM.D
Pharmacist
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
MR. DAVID W CHENG PHARM.D.
Pharmacist
10800 MAGNOLIA AVE
INPATIENT PHARMACY
RIVERSIDE, CA
ZIP 92505
MARIA L LONG PHARM.D.
Pharmacist
10800 MAGNOLIA AVE
MODULE 4E-HEMATOLOGY/ONCOLOGY
RIVERSIDE, CA
ZIP 92505
MELANY YEE PHARMD
Pharmacist
(Oncology)
10800 MAGNOLIA AVE
MOB #2 MODULE 4E (HEMATOLOGY/ONCOLOGY)
RIVERSIDE, CA
ZIP 92505
LINA LISWALDY TEDJA-LEE PHARM.D.
Pharmacist
(Oncology)
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
DR. ROBIN HOSHIZAKI BORDEN PHARM.D.
Pharmacist
10800 MAGNOLIA AVE
KAISER ANTICOAGULATION SERVICE, MODULE 4C
RIVERSIDE, CA
ZIP 92505
MRS. INA JUE UN PHARM.D.
Pharmacist
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
MR. THOMAS JOHN KARLOWICZ R.PH.
Pharmacist
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
DR. HOANG HUNG LE PHARM.D.
Pharmacist
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
MRS. JENNIFER HEBREO BAYBAY PHARMD
Pharmacist
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
NANCY LEW PYO R.PH.
Pharmacist
10800 MAGNOLIA AVE
PHARMACY ADMINISTRATION, RMC-5 RM 5506
RIVERSIDE, CA
ZIP 92505
SIOBHAN M. GOGAN MD
Ophthalmology
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
DAVID C. IANACONE MD
Internal Medicine
(Addiction Medicine)
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
ROGER S. SAYEGH MD
Internal Medicine
(Gastroenterology)
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
DR. JOHN SUP HYUN PHARM. D.
Pharmacist
(Pharmacotherapy)
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
LINDA LEE
Pharmacist
10800 MAGNOLIA AVE
RIVERSIDE, CA
ZIP 92505
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1013076686, enumerated in the NPI registry as an "individual" on December 08, 2006
The provider is located at 10800 Magnolia Ave Riverside, Ca 92505 and the phone number is (909) 353-2000
The provider's speciality is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X
Yes, as of July 06, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $179.42 with an average copayment of $44.85 for new patient appointments. Established patients should expect a typical charge of $74.08 and an average copayment of 18.52. Please review your insurance plan or contact the provider directly to determine your specific costs.
This NPI record was last updated on December 08, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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