Hai Ngoc Dao, M.D.
Internal Medicine Physician · San Bernardino, CA
Hai Ngoc Dao, M.D. is an internal medicine physician with a practice address in San Bernardino, California, and NPI 1033312202, issued on Jun 6, 2007. Check the license (California A97539, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hai Ngoc Dao
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A97539 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 N Waterman Ave, San Bernardino, CA 92404
- Phone
- (909) 883-8611
- Enumerated
- Jun 6, 2007
- Record last updated
- Nov 15, 2025
- Fax
- (909) 881-5707
- Medicaid ID
- 00A975390 CA
- Medicare enrollment
- Enrolled (PECOS I20071212000750); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1700 N Waterman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Myra Aguirre-Carlos, MDFamily Medicine Physician1669575874
- Nesib Ali, MDFamily Medicine Physician1497725261
- Susan Aminzai, M.D.Internal Medicine Physician1619471091
- Augusto Banayat, FNPNurse Practitioner1831727700
- Anooshirvan Bozorgmehr, DOFamily Medicine Physician1689019200
- Carina Buhay, MDInternal Medicine Physician1639143530
Verify Hai Ngoc Dao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A97539Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average internal medicine physician in 2024
11,058 Medicare Part D claims for 622 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 141 claims were for opioids.
Most prescribed
- Atorvastatin Calcium767 claims
- Amlodipine Besylate566 claims
- Lisinopril373 claims
- Losartan Potassium373 claims
- Gabapentin346 claims
- Levothyroxine Sodium336 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
- Beaver Medical Group P CSan Bernardino, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hai Ngoc Dao among 17,696 internal medicine physician records in California
Hai Ngoc Dao, M.D. 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1995 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 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).
58 internal medicine physician records list a practice address in San Bernardino
They are 58 of the 5,645 NPPES records with a practice address in San Bernardino, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Bernardino → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shuang Bai, M.D.San Bernardino, CA 924041154346799
- Carina Buhay, MDSan Bernardino, CA 924041639143530
- Ronald Burton, MDSan Bernardino, CA 924041225008006
- Peter Csapoczi, MDSan Bernardino, CA 924041841357118
- Magdi Elsaadi, MDSan Bernardino, CA 924041902876683
- Ahamed Jiffry, MDSan Bernardino, CA 924041295848679
- Tony Kastoon, M.D.San Bernardino, CA 924041184636235
- Ernest Levister, MDSan Bernardino, CA 924041962577080
Common questions
What is Hai Ngoc Dao, M.D.'s NPI number?
Hai Ngoc Dao, M.D.'s National Provider Identifier (NPI) is 1033312202, issued on Jun 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Hai Ngoc Dao, M.D. located?
The NPPES record lists a practice address at 1700 N Waterman Ave, San Bernardino, CA, 92404. Phone: (909) 883-8611. Providers update this record themselves, so call before visiting.
How can I verify Hai Ngoc Dao, M.D.'s license?
NPPES lists California license number A97539, 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 Hai Ngoc Dao, M.D. prescribe under Medicare Part D?
In 2024, Hai Ngoc Dao, M.D. had 11,058 Medicare Part D claims for 622 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.