Physician Profile
Unclaimed ProfileAbout JOHNSTONE
Michael T Johnstone, M.D. practises cardiovascular disease (cardiology) in Brighton, MA. Michael is a 1982 graduate of M H Kornberg School of Dentistry, Temple University. Michael is also listed as specialising in internal medicine and cardiovascular disease.
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
Common questions
What does Dr. Johnstone specialise in?
Dr. Johnstone is a cardiovascular disease (cardiology) in Brighton, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where is Dr. Johnstone located?
Dr. Johnstone is listed at 736 CAMBRIDGE ST, 4TH FL CARDIOVASCULAR MEDICINE SUITE, 4TH FL MARGARET'S, Brighton, MA 02135. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Johnstone's phone number?
The number on file is (617) 562-7690. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Johnstone's NPI number?
Dr. Johnstone's National Provider Identifier is 1235164336. 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. Johnstone go to medical school?
Dr. Johnstone attended M H Kornberg School of Dentistry, Temple University, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Johnstone been practising?
Dr. Johnstone has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Johnstone do most often?
According to Medicare billing data, Dr. Johnstone performs imaging including 3d radiographic procedure with computerized image postprocessing; 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
Has Dr. Johnstone confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnstone. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (617) 562-7690
- Email not available
Practice Locations
736 CAMBRIDGE ST, 4TH FL CARDIOVASCULAR MEDICINE SUITE, 4TH FL MARGARET'S
Brighton, MA 02135
Procedures Most Often Billed to Medicare
1,681 services · 1,299 patients · 24 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| 3d radiographic procedure with computerized image postprocessing | Imaging | 76377 |
18 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
447 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
359 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
53 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
53 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
53 |
| Ultrasound of heart, follow-up | Treatment | 93308 |
36 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | Treatment | 93971 |
31 |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
29 |
| Ultrasound study of arm or leg veins with compression and maneuvers | Treatment | 93970 |
27 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated 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 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 15 related providers in 2 groups
Other cardiovascular diseases in Brighton 7
Same specialty, same city.
Also performs 3d radiographic procedure with computerized image postprocessing 8
Providers in MA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.