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MARK GREENSTADT, M.D., INC.
NPI 1770635120
Internal Medicine in Northridge, CA

Active since January 17, 2007
18350 ROSCOE BLVD, SUITE 300, NORTHRIDGE, CA 91325(818) 717-3021(818) 717-3028 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mark Greenstadt, M.d., Inc. NPPES

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

MARK GREENSTADT, M.D., INC. (NPI 1770635120) is a healthcare organization registered as an internal medicine in Northridge, California and active in the NPI registry since January 2007. The organization lists Mark Greenstadt, President, as its authorized official.

NPPES Registry Identity

NPI1770635120
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMARK GREENSTADT, M.D., INC.
Location Address18350 ROSCOE BLVD, SUITE 300Northridge, CA 91325-4109
Mailing Address18350 Roscoe Blvd, Suite 300Northridge, CA 91325-4109 · (818) 717-3021 · Fax (818) 717-3028
Phone(818) 717-3021
Fax(818) 717-3028
Organization SubpartNo
Authorized OfficialMark GreenstadtPresident · (818) 717-3021
Enumeration DateJanuary 17, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1770635120 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G35141
Definition
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.
18350 ROSCOE BLVD, Northridge, CA 91325
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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. ANDREW CHANG M.D.
Ophthalmology
18350 ROSCOE BLVD, SUITE 101
NORTHRIDGE, CA 91325
Los Angeles County (818) 349-8300
NORTHRIDGE FACIAL PLASTIC SURGERY MEDICAL GROUP A PROFESSIONAL CORP
Clinic/Center (Ambulatory Surgical)
18350 ROSCOE BLVD, #318A
NORTHRIDGE, CA 91325
Los Angeles County (818) 993-9824
DR. FARES RABADI M.D.
Internal Medicine
18350 ROSCOE BLVD, SUITE 514
NORTHRIDGE, CA 91325
Los Angeles County (818) 775-0519
SASIPAN JETAWATANA
Pharmacist
18350 ROSCOE BLVD
NORTHRIDGE, CA 91325
Los Angeles County (818) 688-5772
DR. RITOO GAGNEJA M.D.
Family Medicine
18350 ROSCOE BLVD, SUITE 600
NORTHRIDGE, CA 91325
Los Angeles County (818) 727-1515
FAMILY MEDICINE ASSOCIATES OF NORTHRIDGE A MEDICAL GROUP INC
Family Medicine
18350 ROSCOE BLVD, SUITE 600
NORTHRIDGE, CA 91325
Los Angeles County (818) 727-1515
JAMES CHRISTOPHER ANDREWS M.D.
Otolaryngology (Otology & Neurotology)
18350 ROSCOE BLVD, SUITE 518
NORTHRIDGE, CA 91325
Los Angeles County (818) 349-0680
DR. ADEL F. JABOUR M.D.
Surgery
18350 ROSCOE BLVD, SUITE #200
NORTHRIDGE, CA 91325
Los Angeles County (818) 885-7905

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 Mark Greenstadt, M.D., Inc.'s NPI number?

The NPI number for Mark Greenstadt, M.D., Inc. is 1770635120. It was assigned to this organization in the NPPES registry on January 17, 2007.

Where is Mark Greenstadt, M.D., Inc. located?

Mark Greenstadt, M.D., Inc. is located at 18350 Roscoe Blvd Suite 300, Northridge, CA 91325. The listed phone number is (818) 717-3021.

What is Mark Greenstadt, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Mark Greenstadt, M.D., Inc. was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.