Physician Profile
Unclaimed ProfileAbout GARDNER
Based in Boston, MA, Ryan Mackenzie Gardner, MD is listed in the NPI registry under emergency medicine. Ryan is also listed as specialising in anesthesiology — critical care. Medicare claims data shows Ryan provided 500 services to 176 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
Common questions
What does Dr. Gardner specialise in?
Dr. Gardner is an emergency medicine in Boston, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “EMERGENCY MEDICINE”.
NPI registry
Where is Dr. Gardner located?
Dr. Gardner is listed at 330 BROOKLINE AVE, Boston, MA 02215. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Gardner's phone number?
The number on file is (617) 667-7000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Gardner?
Dr. Gardner's National Provider Identifier is 1588195333. 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. Gardner go to medical school?
Dr. Gardner attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Gardner have?
Dr. Gardner has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Gardner do most often?
According to Medicare billing data, Dr. Gardner performs procedures including insertion of artery tube for blood sampling or infusion through skin and insertion of non-tunneled central venous tube for infusion; reads or performs imaging such as ultrasonic guidance for blood vessel access, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Gardner's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gardner. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (617) 667-7000
- Email not available
Practice Locations
330 BROOKLINE AVE
Boston, MA 02215
Procedures Most Often Billed to Medicare
500 services · 176 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
31 |
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
31 |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
39 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
260 |
| Critical care, each additional 30 minutes | Office visit | 99292 |
139 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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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 emergency medicines at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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 emergency medicines in Boston 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of artery tube for blood sampling or infusion through skin 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.