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Pediatrics - Pediatric Gastroenterology Specialists in Boston, MA

Browse 112 Pediatrics - Pediatric Gastroenterology providers listed in NPPES with a practice address in Boston, Massachusetts.

112 Healthcare Providers

How Boston compares with the U.S.

Boston has 17 clinicians in Pediatrics - Pediatric Gastroenterology per 100,000 residents, 23.2 times the U.S. rate of 0.7.

That is 112 active clinicians in Pediatrics - Pediatric Gastroenterology with a practice address in Boston, for a population of 666,442.

The Massachusetts rate is 1.9 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

93% of clinicians in Pediatrics - Pediatric Gastroenterology in Boston listed in the CMS Medicare file (56 of 60) accept Medicare assignment. That is similar to the Massachusetts share of 94%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

8% of clinicians in Pediatrics - Pediatric Gastroenterology in Boston listed in the CMS Medicare file (5 of 60) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Massachusetts share of 7%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Pediatrics - Pediatric Gastroenterology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Pediatrics - Pediatric Gastroenterology practitioners in Boston, MA

Source: CMS PECOS
PECOS Enrolled Specialists 99 In Boston, MA
Part B Lab & Imaging Eligible 100 Diagnostic Referrals
DME Ordering Eligible 101 Durable Medical Equipment
Home Health Agency Referrals 100 HHA Ordering Eligible
Showing 1โ€“20 of 112 providers
With recent CMS data first, then Aโ€“Z

Dr. Corey Baker , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
55 Fruit St Ste 6b, Boston, MA 021142621
Phone: 6177268705
NPI Identifier 1588000301
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Dr. Sonia Arora Ballal , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
300 Longwood Ave, Boston, MA 021155724
Phone: 6173556058
NPI Identifier 1578618435
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Dr. Jaime Belkind-Gerson , MD, MSC

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
175 Cambridge St, Room 575, Pediatric Gi, Boston, MA 021142743
Phone: 6177268705
NPI Identifier 1609193440
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Dr. Athos Bousvaros , MD, MPH

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
300 Longwood Ave, Boston, MA 021155724
Phone: 6173552962
NPI Identifier 1528174885
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Dr. Timothy Michael Buie , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
55 Fruit St, Boston, MA 021142621
Phone: 6177268705
NPI Identifier 1750338026
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Dr. Alexandra N Carey , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
333 Longwood Ave Fl 4, Division Of Pediatric Gastroenterology And Nutrition, Boston, MA 021155711
Phone: 8572183612
NPI Identifier 1063674414
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Dr. Alessio Fasano , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
55 Fruit Street, Yawkey 6b-6800, Boston, MA 02114
Phone: 6177248476
NPI Identifier 1831131523
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Dr. Tamara Feliciano Alvarado , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status
850 Harrison Ave, Boston, MA 021184001
Phone: 6174144841
NPI Identifier 1679743025
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Dr. Laurie E Fishman , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
300 Longwood Ave, Boston, MA 021155724
Phone: 6173557964
NPI Identifier 1053324400
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Dr. Alejandro F Flores Sandoval , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
750 Washington St, New England Medical Center (Tufts), Boston, MA 02111
Phone: 6176360136
NPI Identifier 1316950074
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Amit Grover , MB BCH BAO

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
300 Longwood Ave, Division Of Gastroenterology/nutrition, Boston, MA 021155724
Phone: 6173556000
NPI Identifier 1801028451
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Dr. Elizabeth J Hait , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
Childrens Hospital, 300 Longwood Avenue, Boston, MA 02115
Phone: 6173556000
NPI Identifier 1700803160
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Dr. Stephen Clayton Hardy , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status
55 Fruit St Yaw 6, Pediatric Gi And Nutrition Associates, Boston, MA 02114
Phone: 6177262930
NPI Identifier 1053389395
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Dr. Christine Ko-Eun Lee , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
300 Longwood Ave, Children's Hospital Boston, Boston, MA 021155724
Phone: 6173556058
NPI Identifier 1891906855
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Dr. Alan M Leichtner , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status
300 Longwood Ave, Boston, MA 021155724
Phone: 6173552946
NPI Identifier 1760595383
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Dr. Ishrat Mansuri , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
300 Longwood Ave, Boston, MA 021155724
Phone: 6173556058
NPI Identifier 1922335835
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Dr. Maireade E Mcsweeney , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
300 Longwood Ave, Division Gi/nutrition, Children's Hospital Boston, Boston, MA 021155724
Phone: 6173556058
NPI Identifier 1548437205
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Dr. Claudio J Morera , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
850 Harrison Ave, Yacc5, Boston, MA 021184001
Phone: 6174144841
NPI Identifier 1124009998
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Dr. Peter Ngo , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
800 Washington St # 213, Tufts Medical Center/floating Hospital, Boston, MA 021111552
Phone: 6176363266
NPI Identifier 1225028301
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Dr. Samuel Nurko , MD

Pediatrics - Pediatric Gastroenterology

Active NPI Status Accepts Medicare Assignment
300 Longwood Ave, Boston, MA 021155724
Phone: 6173556055
NPI Identifier 1750494365
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Frequently Asked Questions about Pediatrics - Pediatric Gastroenterology in Boston

How do I check a Pediatrics - Pediatric Gastroenterology practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Massachusetts licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.