Physician Profile
Eric James Nilles, MD
Unclaimed ProfileAbout Dr. Nilles
Based in Boston, MA, Eric James Nilles, MD is listed in the NPI registry under emergency medicine. Eric graduated from University of Wisconsin School of Medicine in 2000. Eric is also listed as specializing in emergency medical services. Medicare claims data shows Eric provided 347 services to 345 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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (781) 995-7077
- Email not available
Practice Locations
75 FRANCIS ST
Boston, MA 02115
Procedures Most Often Billed to Medicare
347 services · 345 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound of heart, follow-up | Treatment | 93308 |
12 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
224 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
60 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
25 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
14 |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
12 |
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 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 7
Same specialty, same city.
Trained at University of Wisconsin School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at University of Wisconsin School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of heart, follow-up 8
Providers in MA who bill this service to Medicare most often.
Common questions
What does Dr. Nilles specialize in?
Dr. Nilles 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. Nilles located?
Dr. Nilles is listed at 75 FRANCIS ST, Boston, MA 02115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Nilles's phone number?
The number on file is (781) 995-7077. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Nilles?
Dr. Nilles's National Provider Identifier is 1124007109. 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. Nilles go to medical school?
Dr. Nilles attended University of Wisconsin School of Medicine, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Nilles have?
Dr. Nilles has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Nilles do most often?
According to Medicare billing data, Dr. Nilles 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. Nilles's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Nilles. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.