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DR. ZAINA EL-ISA MD
NPI 1861623555
Internal Medicine in Oakland, CA

Active since July 29, 2009PECOS EnrolledAccepts Medicare Assignment
2950 INTERNATIONAL BLVD, OAKLAND, CA 94601(510) 535-4410 Get Directions Write a Review

NPPES record last updated: December 22, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Zaina El-isa Md NPPES

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

DR. ZAINA EL-ISA MD (NPI 1861623555) is an individual internal medicine provider in Oakland, California, licensed in California (A131838) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1861623555
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ZAINA EL-ISACredential: MD
Location Address2950 INTERNATIONAL BLVDOakland, CA 94601-2228
Mailing Address6864 Tiffany CmnLivermore, CA 94551-9044 · (510) 859-3450
Phone(510) 535-4410
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateJuly 29, 2009
Last NPPES UpdateDecember 22, 2021
✔ NPI 1861623555 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A131838
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 4301094067 (MI)
2950 INTERNATIONAL BLVD, Oakland, CA 94601
Open in Google Maps ↗

Other Identifiers 1

OtherA131838CA · Ca Medical License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Zaina El-isa Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7012148562
PECOS Enrollment IDI20150120000022
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

KATHY TUTINO
Dental Hygienist
2950 INTERNATIONAL BLVD
OAKLAND, CA 94601
Alameda County (510) 535-4450
COLLEEN MCCULLOUGH FNP
Nurse Practitioner (Family)
2950 INTERNATIONAL BLVD
OAKLAND, CA 94601
Alameda County (510) 535-4400
HEIDY SOFIA RAMOS FERNANDEZ RN
Registered Nurse
2950 INTERNATIONAL BLVD
OAKLAND, CA 94601
Alameda County (510) 434-5300
SARAH GILSTRAP
Registered Nurse
2950 INTERNATIONAL BLVD
OAKLAND, CA 94601
Alameda County (510) 535-4410
CASEY JAKE SMITH
Internal Medicine
2950 INTERNATIONAL BLVD
OAKLAND, CA 94601
Alameda County (505) 862-2029
SIMONE MARIE GARRIGUES M.A., L.C.S.W.
Social Worker (Clinical)
2950 INTERNATIONAL BLVD, NATIVE AMERICAN HEALTH CENTER
OAKLAND, CA 94601
Alameda County (510) 535-4400
CRYSTAL HUANG MD
Family Medicine
2950 INTERNATIONAL BLVD
OAKLAND, CA 94601
Alameda County (510) 535-4400
KYOUNG WON HAN DDS
Dentist
2950 INTERNATIONAL BLVD
OAKLAND, CA 94601
Alameda County (510) 485-5925

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 Zaina El-isa's NPI number?

The NPI number for Zaina El-isa is 1861623555. It was assigned to this individual provider in the NPPES registry on July 29, 2009.

Where is Zaina El-isa located?

Zaina El-isa practices at 2950 International Blvd, Oakland, CA 94601. The listed phone number is (510) 535-4410.

What is Zaina El-isa's specialty?

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

Is Zaina El-isa enrolled in Medicare?

Yes. Zaina El-isa is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Zaina El-isa was last updated on December 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.