Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALAA ALTAHAN
NPI 1952757684
Internal Medicine - Hematology & Oncology in San Jose, CA

Q: What is Alaa Altahan's NPI number?

The NPI number for Alaa Altahan is 1952757684. It was assigned to this individual provider in the NPPES registry on May 12, 2016.

Q: What is Alaa Altahan's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Alaa Altahan was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.

Active since May 12, 2016PECOS EnrolledAccepts Medicare Assignment

270 INTERNATIONAL CIR, SAN JOSE, CA 95119(408) 972-6560 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 11, 2025, Aug 3, 2022, Feb 23, 2022 and 1 more (4 updates tracked since 2016).

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About Alaa Altahan NPPES

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

ALAA ALTAHAN (NPI 1952757684) is an individual hematology & oncology provider in San Jose, California, licensed in California (A180251) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Regional One Health, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1952757684

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameALAA ALTAHAN

Location Address270 INTERNATIONAL CIRSan Jose, CA 95119-1130

Mailing Address270 International CirSan Jose, CA 95119-1130

Phone(408) 972-6560

Sole ProprietorYes

Medical School CMSOtherGraduated 2011

Enumeration DateMay 12, 2016

Last NPPES UpdateJune 29, 20264 updates tracked since enumeration

NPPES CertifiedJune 29, 2026

✔ NPI 1952757684 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CA · A180251

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License 60480 (TN)

270 INTERNATIONAL CIR, San Jose, CA 95119

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee.Insurance ›

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

Alaa Altahan 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 ID9032506084

PECOS Enrollment IDI20220422000102, I20220930002628

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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Regional One Health

Acute Care Hospitals · Memphis, TN

1/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number440152

Location877 Jefferson AvenueMemphis, TN 38103 · Shelby County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95119 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

$206.04 typical visit price

range $70.37 – $206.04

Typical copayment $51.51 (range $17.59 – $51.51)

Most-billed visit code 99205

Established Patient

$121.77 typical visit price

range $23.96 – $169.60

Typical copayment $30.44 (range $5.99 – $42.40)

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.

KATHERINE SUSAN CASTO PT

Physical Therapist

270 INTERNATIONAL CIR
SAN JOSE, CA 95119

Santa Clara County (408) 972-6400

LAUREN VICIK

Physical Therapist

270 INTERNATIONAL CIR
SAN JOSE, CA 95119

Santa Clara County (508) 423-1381

AARON ALLAN BOSEL

Physical Therapist

270 INTERNATIONAL CIR
SAN JOSE, CA 95119

Santa Clara County (408) 972-6400

MR. CALVIN WILLIAM LEUNG DPT

Physical Therapist

270 INTERNATIONAL CIR, 2 NORTH, FIRST FLOOR
SAN JOSE, CA 95119

Santa Clara County (408) 972-6400

MONA M LIU MD

Allergy & Immunology

270 INTERNATIONAL CIR
SAN JOSE, CA 95119

Santa Clara County (408) 890-0629

MRS. KATHERINE JEAN STARK M.P.T., ATC

Physical Therapist

270 INTERNATIONAL CIR
SAN JOSE, CA 95119

Santa Clara County (408) 972-6400

CHRISTINA MARIA LYONS

Pharmacist

270 INTERNATIONAL CIR
SAN JOSE, CA 95119

Santa Clara County (408) 972-5408

SHAMUN MOHAMMED

Speech-Language Pathologist

270 INTERNATIONAL CIR
SAN JOSE, CA 95119

Santa Clara County (408) 972-3000

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 Alaa Altahan's NPI number?

The NPI number for Alaa Altahan is 1952757684. It was assigned to this individual provider in the NPPES registry on May 12, 2016.

Where is Alaa Altahan located?

Alaa Altahan practices at 270 International Cir, San Jose, CA 95119. The listed phone number is (408) 972-6560.

What is Alaa Altahan's specialty?

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

Is Alaa Altahan enrolled in Medicare?

Yes. Alaa Altahan 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.

What insurance does Alaa Altahan accept?

Health plans from BlueCross BlueShield of Tennessee list Alaa Altahan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Alaa Altahan affiliated with any hospitals?

According to CMS data, Alaa Altahan is affiliated with Regional One Health.

When was this NPI record last updated?

The NPPES record for Alaa Altahan was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.