Ralph Tinghan Ho, MD
Diagnostic Radiology Physician · Pleasanton, CA
Ralph Tinghan Ho, MD is a diagnostic radiology physician with a practice address in Pleasanton, California, and NPI 1548363070, issued on Sep 7, 2006. Check the license (California C53547, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ralph Tinghan Ho
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- C53547 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5555 W Las Positas Blvd, Pleasanton, CA 94588
- Phone
- (925) 416-3540
- Enumerated
- Sep 7, 2006
- Record last updated
- May 18, 2022
- Medicaid IDs
- 205729114 MO
00125186 MS
3869286 TN
145728001 AR - Medicare enrollment
- Enrolled (PECOS I20100414000645); may accept Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1995
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 5555 W Las Positas Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dennis Alfaro, M.D.Emergency Medicine Physician1407847718
- Ashley Altman, MDDiagnostic Radiology Physician1649697947
- Joshua AshfordEmergency Registered Nurse1972458941
- Abinav Baweja, MDMedical Oncology Physician1770961575
- Brooke BettsPharmacist1962178491
- Myrna Castelazo, M.D.Diagnostic Radiology Physician1407290513
Verify Ralph Tinghan Ho in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C53547Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $663.91
4 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. 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 15 group practices
- Associated Valley Radiologists, LtdGoodyear, AZ
- Banner Imaging Services LLCGlendale, AZ
- Beverly Radiology Medical Group IIITemecula, CA
- California Managed Imaging Medical Group IncCamarillo, CA
- Desert Advanced Imaging Medical CenterRancho Mirage, CA
- Golden State Imaging Associates IncPalm Springs, CA
- Hanford Community HospitalHanford, CA
- Kern Radiology Medical Group IncBakersfield, CA
- Pinnacle Healthcare LLCIrvine, CA
- Radiology Medical Group OF WmmcFort Bragg, CA
- Radiology Specialists Ltd Marasso-MillerIrvine, CA
- Reedley Community HospitalReedley, CA
- Seven Star Hospital Associates IncHemet, CA
- Sol Radiology IncSanta Ana, CA
- United Medical Imaging Healthcare IncDowney, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ralph Tinghan Ho among 4,500 diagnostic radiology physician records in California
Ralph Tinghan Ho, MD 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1995 · median 2004 among the 3,130 with a school on file
- Record last updated2022 · 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 Pleasanton → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Ashley Altman, MDPleasanton, CA 945881649697947
- Brooke Caldwell, M.D.Pleasanton, CA 945881134176969
- Myrna Castelazo, M.D.Pleasanton, CA 945881407290513
- Priscilla Wong, MDPleasanton, CA 945881417909722
- Michael Brodsky, M.D.Vallejo, CA 945891497781348
- Dean Genes, M.D.Vallejo, CA 945891194790972
- Susan Hermanson, MDVallejo, CA 945891295813038
- Christopher Kagan, MDVallejo, CA 945891588742316
Common questions
What is Ralph Tinghan Ho, MD's NPI number?
Ralph Tinghan Ho, MD's National Provider Identifier (NPI) is 1548363070, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ralph Tinghan Ho, MD located?
The NPPES record lists a practice address at 5555 W Las Positas Blvd, Pleasanton, CA, 94588. Phone: (925) 416-3540. Providers update this record themselves, so call before visiting.
How can I verify Ralph Tinghan Ho, MD's license?
NPPES lists California license number C53547, 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.
What is Ralph Tinghan Ho, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.