Alexander Sai-Chak Ho, M.D.
Diagnostic Radiology Physician · Fontana, CA
Alexander Sai-Chak Ho, M.D. is a diagnostic radiology physician with a practice address in Fontana, California, and NPI 1629251566, issued on Dec 13, 2007. Check the license (California A114491, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander Sai-Chak Ho
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- A114491 CA
U8344 TX
Self-reported in NPPES; status is on the state search - Practice location
- 9961 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-3562
- Enumerated
- Dec 13, 2007
- Record last updated
- Apr 1, 2026
- Medicare enrollment
- Enrolled (PECOS I20240315002923); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 9961 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Adair, MDFamily Medicine Physician1780732651
- Berneva Adams, MDObstetrics & Gynecology Physician1376602987
Verify Alexander Sai-Chak Ho in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A114491Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $199.61
11 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Mands Radiology Associates PAGlenview, IL
- Radiology Imaging Corpus Christi PLLCCorpus Christi, TX
- Vhs San Antonio Imaging Partners LPNew Braunfels, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Sai-Chak Ho among 4,500 diagnostic radiology physician records in California
Alexander Sai-Chak Ho, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 41% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2006 · median 2004 among the 3,130 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Fontana → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Saveen AhujaFontana, CA 923351588981468
- Adam Bauer, M.D.Fontana, CA 923351417180456
- Jerome Tsai, MDFontana, CA 923351407054430
- John TuckerFontana, CA 923351083814297
- Chul Chae, M.D.Colton, CA 923241225133465
- Thuan Dang, M.D.Colton, CA 923241336244508
- Donald Dennis, MDColton, CA 923241205539244
- Michael Gentry, MDColton, CA 923241013196575
Common questions
What is Alexander Sai-Chak Ho, M.D.'s NPI number?
Alexander Sai-Chak Ho, M.D.'s National Provider Identifier (NPI) is 1629251566, issued on Dec 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Sai-Chak Ho, M.D. located?
The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-3562. Providers update this record themselves, so call before visiting.
How can I verify Alexander Sai-Chak Ho, M.D.'s license?
NPPES lists California license number A114491, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.