Alaa Altahan
Internal Medicine Physician · San Jose, CA
Alaa Altahan is an internal medicine physician with a practice address in San Jose, California, and NPI 1952757684, issued on May 12, 2016. Check the license (California A180251, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alaa Altahan
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A180251 CA
60480 TN
Self-reported in NPPES; status is on the state search - Practice location
- 270 International Cir, San Jose, CA 95119
- Phone
- (408) 972-6560
- Enumerated
- May 12, 2016
- Entity
- Type 1 · individual
Also registered at 270 International Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aaron BoselPhysical Therapist1043649189
- Katherine Casto, PTPhysical Therapist1013064708
- Cristina Celaya, MBA,OTR,L,CHTNeurorehabilitation Occupational Therapist1396892519
Verify Alaa Altahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A180251Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
64% fewer Medicare Part D claims than the average internal medicine physician in 2024
992 Medicare Part D claims for 136 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Acyclovir126 claims
- Prednisone95 claims
- Dexamethasone78 claims
- Lenalidomide74 claims
- Allopurinol60 claims
- Hydroxyurea57 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
2 hospital and facility affiliations
- Permanente Medical Group IncSan Jose, CA
- UT Regional One Physicians IncMemphis, TN
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
473 internal medicine physician records list a San Jose practice address
They are 473 of the 20,925 NPPES records with a San Jose practice address, and 20,403 internal medicine physician records in California.
All 473 in San Jose → All 20,403 in California → Every provider in San Jose →
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Common questions
What is Alaa Altahan's NPI number?
Alaa Altahan's National Provider Identifier (NPI) is 1952757684, issued on May 12, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Alaa Altahan located?
The NPPES record lists a practice address at 270 International Cir, San Jose, CA, 95119. Phone: (408) 972-6560. Providers update this record themselves, so call before visiting.
How can I verify Alaa Altahan's license?
NPPES lists California license number A180251, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alaa Altahan prescribe under Medicare Part D?
In 2024, Alaa Altahan had 992 Medicare Part D claims for 136 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.