Physician Profile
Unclaimed ProfileAbout CHAN
Based in Upland, CA, Larry C Chan, D.O. is listed in the NPI registry under cardiovascular disease (cardiology). Larry is also listed as specializing in interventional cardiology and internal medicine. Medicare claims data shows Larry provided 3,922 services to 2,850 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (909) 500-8683
- Email not available
Practice Locations
685 N 13TH AVE STE 2
Upland, CA 91786
Procedures Most Often Billed to Medicare
3,922 services · 2,850 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
88 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
344 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
234 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
217 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
178 |
| Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional | Treatment | 93229 |
113 |
| Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional | Treatment | 93228 |
110 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
104 |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
76 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | Treatment | 93015 |
64 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiovascular diseases at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 26 related providers in 4 groups
Other cardiovascular diseases in Upland 2
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2007 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Nuclear medicine studies of heart muscle at rest and with stress and spect 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Chan's specialty?
Dr. Chan is a cardiovascular disease (cardiology) in Upland, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where can I find Dr. Chan?
Dr. Chan is listed at 685 N 13TH AVE STE 2, Upland, CA 91786. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Chan?
The number on file is (909) 500-8683. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Chan?
Dr. Chan's National Provider Identifier is 1215259221. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Chan's medical education?
Dr. Chan attended Other, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chan have?
Dr. Chan has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Chan known for?
According to Medicare billing data, Dr. Chan performs imaging including nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Chan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chan. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.