DR. MARK PHILIP EISENBERG MD
NPI 1487628418
Internal Medicine in Fruit St, MA

Active since February 15, 2006PECOS EnrolledAccepts Medicare Assignment
15 FRUIT ST, MGH, FRUIT ST, MA 02114(617) 724-8135(617) 724-8010 Get Directions Write a Review

NPPES record last updated: September 23, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Mark Philip Eisenberg Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK PHILIP EISENBERG MD (NPI 1487628418) is an individual internal medicine provider in Fruit St, Massachusetts, licensed in Massachusetts (54761) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1487628418
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARK PHILIP EISENBERGCredential: MD
Location Address15 FRUIT ST, MGHFruit St, MA 02114-3026
Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-8135 · Fax (617) 724-8010
Fax(617) 724-8010
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 1980
Enumeration DateFebruary 15, 2006
Last NPPES UpdateSeptember 23, 2022
NPPES CertifiedSeptember 23, 2022
NPI 1487628418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MA · 54761
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedInternal Medicine · Addiction MedicineTaxonomy 207RA0401X · License 54761 (MA)
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License 54761 (MA)
15 FRUIT ST, Fruit St, MA 02114

Secondary Practice Location 1

Location 1780 Albany StBoston, MA 02118-2755 · Phone (857) 654-1000 · Fax (857) 654-1100

Other Identifiers 3

Other054761MA · Tufts Health Plan
Medicaid3013103MA
OtherJ05654MA · Bcbs Ma

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Mark Philip Eisenberg Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8325036510
PECOS Enrollment IDI20040505000970, I20180425001288
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
93 services31 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
17 services17 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
15 services15 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Phs Indian Hospital At Rosebud

Acute Care Hospitals · Rosebud, SD
OwnershipGovernment - Federal
CMS Certification Number430084
Location400 Soldier Creek RoadRosebud, SD 57570 · Todd County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
9 suppliers23 claims67 services$6.37 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
5 suppliers11 claims19 services$1.02 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers23 claims23 services$14.24 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
2 suppliers11 claims11 services$2.58 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers23 claims23 services$66.57 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Endocrinology, Diabetes & Metabolism)
15 FRUIT ST, WANG ACC 730S
BOSTON, MA 02114

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Eisenberg's NPI number?

The NPI number for Mark Eisenberg is 1487628418. It was assigned to this individual provider in the NPPES registry on February 15, 2006.

Where is Mark Eisenberg located?

Mark Eisenberg practices at 15 Fruit St Mgh, Fruit St, MA 02114. The listed phone number is (617) 724-8135.

What is Mark Eisenberg's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Eisenberg enrolled in Medicare?

Yes. Mark Eisenberg is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mark Eisenberg accept?

Health plans from Anthem Blue Cross and Blue Shield list Mark Eisenberg as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Eisenberg affiliated with any hospitals?

According to CMS data, Mark Eisenberg is affiliated with Massachusetts General Hospital and Phs Indian Hospital At Rosebud.

When was this NPI record last updated?

The NPPES record for Mark Eisenberg was last updated on September 23, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.