Physician Profile
Unclaimed ProfileAbout EISENBERG
Mark Philip Eisenberg, MD is a healthcare provider in Fruit St, MA specializing in internal medicine. Mark trained at Harvard Medical School, graduating in 1980. Mark is also listed as specializing in addiction medicine and infectious disease. According to Medicare claims data, Mark cared for 74 Medicare patients across 136 services.
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) 724-8135
- Email not available
Practice Locations
15 FRUIT ST MGH
Fruit St, MA 02114
Procedures Most Often Billed to Medicare
136 services · 74 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
93 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
17 |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
15 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
11 |
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.
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Eisenberg specialize in?
Dr. Eisenberg is an internal medicine in Fruit St, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Eisenberg located?
Dr. Eisenberg is listed at 15 FRUIT ST MGH, Fruit St, MA 02114. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Eisenberg's phone number?
The number on file is (617) 724-8135. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Eisenberg's NPI number?
Dr. Eisenberg's National Provider Identifier is 1487628418. 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. Eisenberg go to medical school?
Dr. Eisenberg attended Harvard Medical School, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Eisenberg been practicing?
Dr. Eisenberg has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Eisenberg do most often?
According to Medicare billing data, Dr. Eisenberg the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Eisenberg confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Eisenberg. 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.