DR. RENA DESAI CALLAHAN M.D. NPI 1487856779

NPI Information

  • NPI: 1487856779
  • Provider Name: DR. RENA DESAI CALLAHAN, M.D.
  • Classification: Internal Medicine - 207R00000X
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 27235 TOURNEY RD STE 2400
    VALENCIA, CA
    ZIP 91355
  • Phone: (661) 255-5350

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NPI Details

DR. Rena Desai Callahan, M.D. is an internal medicine in Valencia, CA with 22 years of experience. The provider is a physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. DR. Rena Desai Callahan, M.D. NPI is 1487856779. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a female.

Education
Medical School: PERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduation Year:2004

The provider's business location address is:

27235 TOURNEY RD STE 2400
VALENCIA, CA
ZIP 91355-905
Phone: (661) 255-5350
Fax: (661) 255-9907

The NPI 1487856779 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.

  • Injection, denosumab, 1 mg (HCPCS:J0897)
  • Injection, fulvestrant, 25 mg (HCPCS:J9395)
  • Injection, dexamethasone sodium phosphate, 1 mg (HCPCS:J1100)
  • Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
  • Injection, ondansetron hydrochloride, per 1 mg (HCPCS:J2405)
  • Injection, palonosetron hcl, 25 mcg (HCPCS:J2469)
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS:85025)
  • Infusion, normal saline solution, 250 cc (HCPCS:J7050)
  • Injection of additional new drug or substance into vein (HCPCS:96375)
  • Insertion of needle into vein for collection of blood sample (HCPCS:36415)
  • Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle (HCPCS:96402)
  • Administration of chemotherapy into vein, 1 hour or less (HCPCS:96413)
  • Established patient office or other outpatient visit, 40-54 minutes (HCPCS:99215)
  • Injection, zoledronic acid, 1 mg (HCPCS:J3489)
  • Injection of drug or substance under skin or into muscle (HCPCS:96372)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (HCPCS:96365)
  • Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less (HCPCS:96367)
  • Injection, diphenhydramine hcl, up to 50 mg (HCPCS:J1200)
  • New patient office or other outpatient visit, 60-74 minutes (HCPCS:99205)
  • Administration of additional new drug or substance into vein, 1 hour or less (HCPCS:96417)
  • Infusion into a vein for therapy, prevention, or diagnosis, each additional hour (HCPCS:96366)
  • Infusion into a vein for hydration, each additional hour (HCPCS:96361)
  • Infusion, normal saline solution, sterile (500 ml = 1 unit) (HCPCS:J7040)
  • 5% dextrose/water (500 ml = 1 unit) (HCPCS:J7060)
  • Follow-up hospital inpatient care per day, typically 35 minutes (HCPCS:99233)
  • Initial hospital inpatient care per day, typically 70 minutes (HCPCS:99223)
  • Telephone medical discussion with physician, 21-30 minutes (HCPCS:99443)
  • Irrigation of implanted venous access drug delivery device (HCPCS:96523)

The enumeration date for this NPI number is 5/31/2007 and was last updated on 1/23/2020.

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
1207R00000XInternal MedicineA94238CALIFORNIAYes
2207RH0000XInternal MedicineHematologyA94238CALIFORNIANo
3207RX0202XInternal MedicineMedical OncologyA94238CALIFORNIANo
42086X0206XSurgerySurgical OncologyA94238CALIFORNIANo

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

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