Gene S. Hong, MD
Pulmonary Disease Physician · Montclair, CA
Gene S. Hong, MD is a pulmonary disease physician with a practice address in Montclair, California, and NPI 1144315839, issued on Oct 4, 2006. Check the license (California A56255, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gene S. Hong
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- A56255 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9655 Monte Vista Ave, Montclair, CA 91763
- Phone
- (909) 626-1205
- Enumerated
- Oct 4, 2006
- Record last updated
- Oct 17, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (909) 625-1977
- Medicaid ID
- 00A562550 CA
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Also registered at 9655 Monte Vista Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Hsu, MDPulmonary Disease Physician1972689545
- Amarin Kongchalalai, MDPulmonary Disease Physician1649376534
- Ni Mei, L.ACAcupuncturist1700945581
Verify Gene S. Hong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A56255Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
31 Medicare Part D claims, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Januvia15 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.
Gene S. Hong among 1,443 pulmonary disease physician records in California
Gene S. Hong, MD is one of 1,443 pulmonary disease physician records with a practice address in California. 84% 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, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2011 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 pulmonary disease physician records list a practice address in Montclair
They are 7 of the 1,301 NPPES records with a practice address in Montclair, and 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in Montclair → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Elbert Chang, MDMontclair, CA 917631053417808
- Frank Hsu, MDMontclair, CA 917631972689545
- Shahram Khorrami, M.D.Montclair, CA 917631306876123
- John Kim, DOMontclair, CA 917631710206024
- Amarin Kongchalalai, MDMontclair, CA 917631649376534
- Rick Siriratsivawong, MDMontclair, CA 917631669615902
- Richard Shinto, M.D.Ontario, CA 917611730338708
- Nadir Eltahir, MDPomona, CA 917671053389338
Common questions
What is Gene S. Hong, MD's NPI number?
Gene S. Hong, MD's National Provider Identifier (NPI) is 1144315839, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gene S. Hong, MD located?
The NPPES record lists a practice address at 9655 Monte Vista Ave, Montclair, CA, 91763. Phone: (909) 626-1205. Providers update this record themselves, so call before visiting.
How can I verify Gene S. Hong, MD's license?
NPPES lists California license number A56255, 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 Gene S. Hong, MD prescribe under Medicare Part D?
In 2024, Gene S. Hong, MD had 31 Medicare Part D claims; the average among pulmonary disease physician prescribers was 1,425. 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.