Catalina Hong
Internal Medicine Physician · Fremont, CA
Catalina Hong is an internal medicine physician with a practice address in Fremont, California, and NPI 1427552041, issued on Mar 20, 2018. Check the license (California 20A18002, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Catalina Hong
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A18002 CA
Self-reported in NPPES; status is on the state search - Practice location
- 39400 Paseo Padre Pkwy, Fremont, CA 94538
- Phone
- (510) 248-3000
- Enumerated
- Mar 20, 2018
- Record last updated
- Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211027000893); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2018
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 39400 Paseo Padre Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Denise Agatep, LCSWCounselor1164584900
- Ujwala Agharkar, MDChild & Adolescent Psychiatry Physician1073685723
- Dolly Ahluwalia, RDRegistered Dietitian1659429157
- Tabassum Alam, MDHospitalist Physician1306921069
- Mary Alyono, MDAnesthesiology Physician1477631059
- Stephanie Aoki, PHDPsychologist1427721216
Verify Catalina Hong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A18002Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,622 Medicare Part D claims for 222 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 59 claims were for opioids.
Most prescribed
- Atorvastatin Calcium159 claims
- Lisinopril83 claims
- Amlodipine Besylate80 claims
- Losartan Potassium75 claims
- Fluticasone Propionate60 claims
- Atenolol53 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.
Bills Medicare through one group practice
- Permanente Medical Group IncFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catalina Hong among 17,696 internal medicine physician records in California
Catalina Hong is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 84% of them.
- NPI issued2018 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
125 internal medicine physician records list a practice address in Fremont
They are 125 of the 4,749 NPPES records with a practice address in Fremont, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Fremont → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Zulfiqar Ali, M.DFremont, CA 945381093740227
- Bala Annadurai, M.D.Fremont, CA 945381033100516
- Ashwani Bindal, MDFremont, CA 945381265406318
- Yih Chang, M.D.Fremont, CA 945381174506380
- John Giddens, MDFremont, CA 945381417934803
- Satyasree Konda, M.D.Fremont, CA 945381306880679
- Padmavathi Kudaravalli, MDFremont, CA 945381144221953
- Suresh Mahawar, MDFremont, CA 945381033154893
Common questions
What is Catalina Hong's NPI number?
Catalina Hong's National Provider Identifier (NPI) is 1427552041, issued on Mar 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Catalina Hong located?
The NPPES record lists a practice address at 39400 Paseo Padre Pkwy, Fremont, CA, 94538. Phone: (510) 248-3000. Providers update this record themselves, so call before visiting.
How can I verify Catalina Hong's license?
NPPES lists California license number 20A18002, 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 Catalina Hong prescribe under Medicare Part D?
In 2024, Catalina Hong had 1,622 Medicare Part D claims for 222 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.