Physician Profile
Unclaimed ProfileAbout CHAN
Mario Him Ming Chan, M.D. practices endocrinology in Arlington Heights, IL. Mario is also listed as specializing in endocrinology, diabetes & metabolism. According to Medicare claims data, Mario cared for 1,057 Medicare patients across 1,914 services.
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
- (847) 228-3200
- Email not available
Practice Locations
2101 S ARLINGTON HEIGHTS RD 111
Arlington Heights, IL 60005
Procedures Most Often Billed to Medicare
1,914 services · 1,057 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Fine needle aspiration biopsy using ultrasound guidance, first growth | Procedure | 10005 |
13 |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
60 |
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | Treatment | 95251 |
181 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
639 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
281 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
229 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
189 |
| Follow-up inpatient consultation, intermediate, physicians typically spend 25 minutes communicating with the patient via telehealth | Billing code | G0407 |
126 |
| Follow-up inpatient consultation, intermediate, physicians typically spend 25 minutes communicating with the patient via telehealth | Billing code | G0407 |
108 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
69 |
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 endocrinology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
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 — 27 related providers in 4 groups
Other endocrinology specialists in Arlington Heights 3
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Fine needle aspiration biopsy using ultrasound guidance, first growth 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Chan?
Dr. Chan is an endocrinology in Arlington Heights, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ENDOCRINOLOGY”.
NPI registry
What is Dr. Chan's address?
Dr. Chan is listed at 2101 S ARLINGTON HEIGHTS RD 111, Arlington Heights, IL 60005. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Chan?
The number on file is (847) 228-3200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Chan's NPI number?
Dr. Chan's National Provider Identifier is 1104975176. 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
Where did Dr. Chan train?
Dr. Chan attended Other, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chan been practicing?
Dr. Chan has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Chan perform?
According to Medicare billing data, Dr. Chan performs procedures including fine needle aspiration biopsy using ultrasound guidance, first growth; reads or performs imaging such as ultrasound scan of head and neck soft tissue; provides treatments such as continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Chan confirmed this information?
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.