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Edit this profileAt a glance
- 1722 Shaffer St, Suite 1, Kalamazoo, MI 49048
About Dr. Tan
Gregorio Tan, MD practices cardiovascular disease in Kalamazoo, MI. Medicare claims data shows Gregorio provided 1,222 services to 1,074 patients. The services billed most often include ultrasound of heart with color-depicted blood flow, rate, direction and valve function, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. The provider's National Provider Identifier (NPI) is 1316926751.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (269) 381-3963
- Email not available
Practice Locations
1722 SHAFFER ST SUITE 1
Kalamazoo, MI 49048
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Specialized cardiovascular care
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Advanced imaging
- Cardiac computed tomography
- Coronary artery calcium scan
- Transesophageal echocardiogram
- Cardiac magnetic resonance imaging
- Nuclear cardiac stress imaging
Catheter-based diagnosis and treatment
Heart & circulation
Life Support
Office and noninvasive testing
- Cardiology consultation
- Exercise stress test
- Pharmacologic cardiac stress test
- Stress echocardiogram
- Transthoracic echocardiogram
- Ambulatory blood-pressure monitoring
Structural heart
Most searched procedures
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
- Radiofrequency ablation
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
1,222 services · 1,074 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
53 | As often as other peers in Cardiovascular Disease |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
22 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
203 | As often as other peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
188 | As often as other peers in Cardiovascular Disease |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
54 | More often than most peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
46 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
42 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
40 | As often as other peers in Cardiovascular Disease |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
35 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart, follow-up | Treatment | 93308 |
28 | As often as other peers in Cardiovascular Disease |
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 cardiologists at this location 5
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 — 30 related providers in 4 groups
Other cardiologists in Kalamazoo 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1979 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 MI who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Tan?
Dr. Tan is a cardiologist in Kalamazoo, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
What is Dr. Tan's address?
Dr. Tan is listed at 1722 Shaffer St Suite 1, Kalamazoo, MI 49048. 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. Tan?
The number on file is (269) 381-3963. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Tan?
Dr. Tan's National Provider Identifier is 1316926751. 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. Tan train?
Dr. Tan attended Other, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Tan have?
Dr. Tan has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Tan perform?
According to Medicare billing data, Dr. Tan 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. Tan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tan. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.