Physician Profile
Unclaimed ProfileAbout MARILL
Based in Boston, MA, Keith Austin Marill, MD is listed in the NPI registry under emergency medicine. Keith graduated from University of Rochester School of Medicine and Dentistry in 1988. Keith is also listed as specializing in internal medicine. Medicare claims data shows Keith provided 416 services to 414 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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (617) 643-8595
- Email not available
Practice Locations
55 FRUIT ST
Boston, MA 02114
Procedures Most Often Billed to Medicare
416 services · 414 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound scan of chest | Imaging | 76604 |
12 |
| Ultrasound of heart, follow-up | Treatment | 93308 |
19 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
142 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
78 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
72 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
55 |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
20 |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
18 |
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 emergency medicines at this location 2
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 — 30 related providers in 4 groups
Other emergency medicines in Boston 6
Same specialty, same city.
Trained at University of Rochester School of Medicine and Dentistry 8
Other providers in the same specialty who trained at the same institution.
Class of 1988 at University of Rochester School of Medicine and Dentistry 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound scan of chest 8
Providers in MA who bill this service to Medicare most often.
Common questions
What is Dr. Marill's specialty?
Dr. Marill 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 can I find Dr. Marill?
Dr. Marill is listed at 55 FRUIT ST, Boston, MA 02114. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Marill?
The number on file is (617) 643-8595. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Marill?
Dr. Marill's National Provider Identifier is 1073503371. 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
What is Dr. Marill's medical education?
Dr. Marill attended University of Rochester School of Medicine and Dentistry, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Marill have?
Dr. Marill has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Marill known for?
According to Medicare billing data, Dr. Marill performs imaging including ultrasound scan of chest; provides treatments such as ultrasound of heart, follow-up, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Marill's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marill. 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.