Nathan Hua, MD
Internal Medicine Physician · San Diego, CA
Nathan Hua, MD is an internal medicine physician with a practice address in San Diego, California, and NPI 1619471232, issued on Mar 20, 2018. Check the license (California A173692, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan Hua
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A173692 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4551 EL Cajon Blvd, San Diego, CA 92115
- Phone
- (619) 280-7185
- Enumerated
- Mar 20, 2018
- Record last updated
- Jul 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20260511003824); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4551 EL Cajon Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathan Hua in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A173692Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,833 Medicare Part D claims for 235 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 43 claims were for opioids.
Most prescribed
- Atorvastatin Calcium161 claims
- Amlodipine Besylate146 claims
- Alendronate Sodium94 claims
- Losartan Potassium90 claims
- Metoprolol Succinate86 claims
- Metformin Hcl73 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
- Tri Thuong Nguyen MD ApcSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathan Hua among 17,696 internal medicine physician records in California
Nathan Hua, MD 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
- Graduated2017 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 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).
961 internal medicine physician records list a practice address in San Diego
They are 961 of the 52,937 NPPES records with a practice address in San Diego, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Diego → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sally Alassil, MDSan Diego, CA 921151982044483
- Can Bui, MDSan Diego, CA 921151285717397
- Regina Connell, M.D.San Diego, CA 921151639380249
- John Howard, MDSan Diego, CA 921151063933604
- Alison Lewis, M.D.San Diego, CA 921151770674202
- Tue Nguyen, MDSan Diego, CA 921151548226178
- Hiep Nguyen, M.D.San Diego, CA 921151184716151
- Lakshmi Prathipati, M.D.San Diego, CA 921151245338490
Common questions
What is Nathan Hua, MD's NPI number?
Nathan Hua, MD's National Provider Identifier (NPI) is 1619471232, issued on Mar 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Hua, MD located?
The NPPES record lists a practice address at 4551 EL Cajon Blvd, San Diego, CA, 92115. Phone: (619) 280-7185. Providers update this record themselves, so call before visiting.
How can I verify Nathan Hua, MD's license?
NPPES lists California license number A173692, 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 Nathan Hua, MD prescribe under Medicare Part D?
In 2024, Nathan Hua, MD had 1,833 Medicare Part D claims for 235 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.