Hedy Cecilia Loa, MD
Geriatric Medicine (Internal Medicine) Physician · Ontario, CA
Hedy Cecilia Loa, MD is a geriatric medicine (internal medicine) physician with a practice address in Ontario, California, and NPI 1093720666, issued on Jul 30, 2006. Check the license (California A38337, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hedy Cecilia Loa
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- A38337 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1131 W 6TH St Ste 150, Ontario, CA 91762
- Phone
- (909) 482-4462
- Enumerated
- Jul 30, 2006
- Record last updated
- Sep 11, 2023
- Fax
- (909) 482-4485
- Medicaid ID
- 00A383370 CA
- Medicare enrollment
- Enrolled (PECOS I20040511001436); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →
Also registered at 1131 W 6TH St Ste 150
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rashmi Godugu, MDFamily Medicine Physician1669049391
- Hla Myint Maung Hwang, M.D.Nephrology Physician1356357560
- Hemalatha MuruganFamily Medicine Physician1124681580
Verify Hedy Cecilia Loa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A38337Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average geriatric medicine (internal medicine) physician in 2024
9,675 Medicare Part D claims for 634 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 181 claims were for opioids.
Most prescribed
- Atorvastatin Calcium702 claims
- Losartan Potassium515 claims
- Amlodipine Besylate494 claims
- Metformin Hcl391 claims
- Levothyroxine Sodium346 claims
- Pravastatin Sodium291 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.
Industry payments in 2024: $305.26
15 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 1,004 providers of this specialty with any payment received $1,720.82 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 one group practice
- Our Family Medical Group IncOntario, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hedy Cecilia Loa among 532 geriatric medicine (internal medicine) physician records in California
Hedy Cecilia Loa, MD is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% 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, 46% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1973 · median 1999 among the 271 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in California
There are 532 geriatric medicine (internal medicine) physician records in California.
All 532 in California → Every provider in Ontario → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Sudhakar Kona, MDPomona, CA 917671619080215
- Dan Tran, M.D.Rosemead, CA 917701487709747
- Ryan Uyan, MDMonterey Park, CA 917541275996050
- Oscar Chien, M.D.San Gabriel, CA 917761679675904
- Albert Bui, M.D.Hacienda Heights, CA 917451548536188
- Franck Juste, M.D.Temple City, CA 917801174605349
- Oliver Tsai, M.D.West Covina, CA 917901306828272
- Anthony Kingsley, MDEl Monte, CA 917331750456349
Common questions
What is Hedy Cecilia Loa, MD's NPI number?
Hedy Cecilia Loa, MD's National Provider Identifier (NPI) is 1093720666, issued on Jul 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hedy Cecilia Loa, MD located?
The NPPES record lists a practice address at 1131 W 6TH St Ste 150, Ontario, CA, 91762. Phone: (909) 482-4462. Providers update this record themselves, so call before visiting.
How can I verify Hedy Cecilia Loa, MD's license?
NPPES lists California license number A38337, 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 Hedy Cecilia Loa, MD prescribe under Medicare Part D?
In 2024, Hedy Cecilia Loa, MD had 9,675 Medicare Part D claims for 634 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.