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HOWARD B. KLECKNER MD
NPI 1386722148
Internal Medicine - Hematology & Oncology in Hayward, CA

Active since November 01, 2006
27400 HESPERIAN BLVD, HAYWARD, CA 94545(510) 784-4000 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Howard B. Kleckner Md NPPES

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

HOWARD B. KLECKNER MD (NPI 1386722148) is an individual hematology & oncology provider in Hayward, California, licensed in California (G24654) and active in the NPI registry since November 2006.

NPPES Registry Identity

NPI1386722148
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameHOWARD B. KLECKNERCredential: MD
Location Address27400 HESPERIAN BLVDHayward, CA 94545-4235
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3429 · (510) 625-6262
Phone(510) 784-4000
Sole ProprietorNo
Enumeration DateNovember 1, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1386722148 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CA · G24654
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
27400 HESPERIAN BLVD, Hayward, CA 94545
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Other Identifiers 3

Medicare UPINF20276
Medicaid00G246540CA
Medicare ID-Type Unspecified00G246540

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. MANI M KAMMULA PHARMD
Pharmacist
27400 HESPERIAN BLVD
HAYWARD, CA 94545
Alameda County (510) 784-4462
JAY EDWARD VALLORTIGARA RPH
Pharmacist (Oncology)
27400 HESPERIAN BLVD
HAYWARD, CA 94545
Alameda County (510) 784-4479
BINAL ARUNKUMAR PATEL RPH
Pharmacist
27400 HESPERIAN BLVD
HAYWARD, CA 94545
Alameda County (510) 784-4463
DR. AARON PESSL M.D.
Emergency Medicine
27400 HESPERIAN BLVD
HAYWARD, CA 94545
Alameda County (510) 784-4525
MS. ISABEL PAPP PA
Physician Assistant (Medical)
27400 HESPERIAN BLVD
HAYWARD, CA 94545
Alameda County (510) 784-4528
WAYNE BARBER MD
Otolaryngology
27400 HESPERIAN BLVD
HAYWARD, CA 94545
Alameda County (510) 784-4000
DR. JARED MICHIO NAKASHIMA PHARM.D.
Pharmacist
27400 HESPERIAN BLVD, KAISER HAYWARD INPATIENT PHARMACY
HAYWARD, CA 94545
Alameda County (510) 784-4938
CHITRA R. REDDY MD
Internal Medicine (Nephrology)
27400 HESPERIAN BLVD
HAYWARD, CA 94545
Alameda County (510) 784-4000

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 Howard Kleckner's NPI number?

The NPI number for Howard Kleckner is 1386722148. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Howard Kleckner located?

Howard Kleckner practices at 27400 Hesperian Blvd, Hayward, CA 94545. The listed phone number is (510) 784-4000.

What is Howard Kleckner's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for Howard Kleckner was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.