DR. JOHN JAMES HOLLOWED MD NPI 1891115572

NPI Information

  • NPI: 1891115572
  • Provider Name: DR. JOHN JAMES HOLLOWED, MD
  • Classification: Internal Medicine - 207RI0011X
  • Specialization: Interventional Cardiology
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 2655 1ST ST STE 360
    SIMI VALLEY, CA
    ZIP 93065
  • Phone: (805) 583-7640

Map and Directions

Get Directions

NPI Details

DR. John James Hollowed, MD is an interventional cardiology internal medicine in Simi Valley, CA with 12 years of experience. The provider is an area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system. DR. John James Hollowed, MD NPI is 1891115572. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

Education
Medical School: CREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduation Year:2014

The provider's business location address is:

2655 1ST ST STE 360
SIMI VALLEY, CA
ZIP 93065-581
Phone: (805) 583-7640

The NPI 1891115572 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS:93010)
  • Follow-up hospital inpatient care per day, typically 35 minutes (HCPCS:99233)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS:93306)
  • Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS:93000)
  • New patient office or other outpatient visit, 45-59 minutes (HCPCS:99204)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS:93010)
  • Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (HCPCS:99152)
  • Ultrasonic guidance for blood vessel access (HCPCS:76937)
  • Initial hospital inpatient care per day, typically 70 minutes (HCPCS:99223)
  • Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (HCPCS:93306)
  • Insertion of tube in coronary artery for diagnosis with review by radiologist (HCPCS:93454)
  • Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist (HCPCS:93458)
  • Heart rhythm recording of continous external ekg over 8-15 days (HCPCS:93246)
  • Critical care, first 30-74 minutes (HCPCS:99291)
  • Heart rhythm review and interpretation of continous external ekg over 8-15 days (HCPCS:93248)
  • Ultrasound of heart with color-depicted blood flow, rate and valve function (HCPCS:93325)
  • Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel (HCPCS:93571)
  • Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (HCPCS:93018)
  • Ultrasound of heart, follow-up (HCPCS:93308)
  • Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel (HCPCS:92978)
  • Ultrasound of heart blood flow, valves and chambers, follow-up (HCPCS:93321)
  • Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (HCPCS:99211)
  • Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician (HCPCS:93015)
  • Coronary angioplasty and stenting (HCPCS:NAN05)

The enumeration date for this NPI number is 4/22/2014 and was last updated on 8/5/2021.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
1390200000XStudent in an Organized Health Care Education/Training ProgramNo
2207RI0011XInternal MedicineInterventional CardiologyA142140CALIFORNIAYes

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

NPI Synchronization or Removal

All materials and services on this site are provided on an "as is" and "as available" basis without warranty of any kind. The NPI record is maintained by the National Plan & Provider Enumeration System (NPPES) and anyone may request this information and other NPPES health care provider data from HHS under The Freedom of Information Act (FOIA), Title 5 of the United States Code, section 552. To update the NPI records please contact the NPPES.