Physician Profile
Based in Boston, MA, Gregory Kirby, MD is listed in the NPI registry under anesthesiology. Gregory graduated from University of Connecticut School of Medicine in 2017. Gregory is also listed as specializing in student in an organized health care education program. Medicare claims data shows Gregory provided 246 services to 243 patients. The services billed most often include insertion of probe in esophagus for heart ultrasound, insertion of artery tube for blood sampling or infusion through skin, and anesthesia for procedure to assess heart electrical activity.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
55 FRUIT STREET GRJ4-402
Boston, MA 02114
Within Anesthesiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Anesthesia complications
Back & spine
Chronic pain
Facial & jaw pain
General pain
Head & facial pain
Headaches
Joint pain
Mental health
Muscle pain
Musculoskeletal pain
Nerve pain
Pelvic pain
Post-surgery recovery
Sedation & anesthesia
Spine pain
Ablation
Head & facial procedures
Implants & devices
Infusion therapies
Infusion therapy
Joint injections
Muscle injections
Nerve blocks
Nerve injections
Nerve procedures
Pain relief procedures
Regional anesthesia
Sedation
Sedation & anesthesia
Spine injections
Spine procedures
246 services · 243 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
41 | More often than most peers in Anesthesiology |
| Anesthesia for procedure to assess heart electrical activity | Anaesthesia | 00537 |
41 | More than most peers in Anesthesiology |
| Anesthesia for procedure to correct abnormal heart rhythm | Anaesthesia | 00410 |
32 | More than most peers in Anesthesiology |
| Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older) | Anaesthesia | 00562 |
20 | More often than most peers in Anesthesiology |
| Anesthesia for x-ray or radiation therapy | Anaesthesia | 01922 |
15 | As often as other peers in Anesthesiology |
| Anesthesia for insertion of permanent heart pacemaker | Anaesthesia | 00530 |
11 | Less often than most peers in Anesthesiology |
| Insertion of probe in esophagus for heart ultrasound | Treatment | 93313 |
58 | More than most peers in Anesthesiology |
| Insertion of tube in pulmonary artery for monitoring | Treatment | 93503 |
28 | More often than most peers in Anesthesiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Kirby is an anesthesiologist in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.
NPI registry
Dr. Kirby is listed at 55 Fruit Street Grj4-402, Boston, MA 02114. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (617) 963-4646. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Kirby's National Provider Identifier is 1275065153. 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
Dr. Kirby attended University of Connecticut School of Medicine, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
Dr. Kirby has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Kirby performs procedures including insertion of artery tube for blood sampling or infusion through skin; provides treatments such as insertion of probe in esophagus for heart ultrasound and insertion of tube in pulmonary artery for monitoring. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Kirby. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.