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NATHANIEL ARAIA FESSEHAIE MD
NPI 1114506888
Internal Medicine in Boston, MA

Active since April 07, 2021PECOS EnrolledAccepts Medicare Assignment
75 FRANCIS ST, BOSTON, MA 02115(617) 732-5775 Get Directions Write a Review

NPPES record last updated: April 28, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 7, 2025, Apr 7, 2021 (2 updates tracked since 2021).

About Nathaniel Araia Fessehaie Md NPPES

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

NATHANIEL ARAIA FESSEHAIE MD (NPI 1114506888) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (1022884) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1114506888
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameNATHANIEL ARAIA FESSEHAIECredential: MD
Location Address75 FRANCIS STBoston, MA 02115-6106
Mailing Address55 Fruit StBoston, MA 02114-2696 · (617) 732-5775
Phone(617) 732-5775
Sole ProprietorNo
Medical School CMSPerelman School Of Med At The University Of PennsylvaniaGraduated 2021
Enumeration DateApril 7, 2021
Last NPPES UpdateApril 28, 20252 updates tracked since enumeration
NPPES CertifiedApril 28, 2025
✔ NPI 1114506888 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 1022884
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.
75 FRANCIS ST, Boston, MA 02115
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Secondary Practice Location 1

Location 155 Fruit StBoston, MA 02114-2621 · Phone (617) 726-2000

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

Nathaniel Araia Fessehaie 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 ID5092119586
PECOS Enrollment IDI20250626000823
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.

Hospital Affiliations CMS Care Compare

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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.

Other Providers at the Same Location NPPES 20

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

RUMA RAJBHANDARI
Internal Medicine (Gastroenterology)
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 525-6841
WENYA LINDA BI
Neurological Surgery
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (203) 645-9485
CHI YUEN CHAN M.D.
Student in an Organized Health Care Education/Training Program
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 732-5500
JENNIFER MICHELLE THOMAS MD
Radiology (Diagnostic Radiology)
75 FRANCIS ST, DEPARTMENT OF RADIOLOGY
BOSTON, MA 02115
Suffolk County (617) 732-6248
GAURAV SHARMA M.D.
Surgery (Vascular Surgery)
75 FRANCIS ST, BRIGHAM AND WOMEN'S HOSPITAL
BOSTON, MA 02115
Suffolk County (951) 259-0890
DR. EUGENE RICHARDSON MD
Internal Medicine (Infectious Disease)
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 732-8881
YEU-SHIN CINDY CHANG M.D., M.P.H.
Emergency Medicine
75 FRANCIS ST, BWH DEPT. OF EMERGENCY MEDICINE
BOSTON, MA 02115
Suffolk County (617) 732-8070
CARA L RICHARDS
Physician Assistant
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 732-5500

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 Nathaniel Fessehaie's NPI number?

The NPI number for Nathaniel Fessehaie is 1114506888. It was assigned to this individual provider in the NPPES registry on April 7, 2021.

Where is Nathaniel Fessehaie located?

Nathaniel Fessehaie practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5775.

What is Nathaniel Fessehaie's specialty?

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

Is Nathaniel Fessehaie enrolled in Medicare?

Yes. Nathaniel Fessehaie 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.

Is Nathaniel Fessehaie affiliated with any hospitals?

According to CMS data, Nathaniel Fessehaie is affiliated with Massachusetts General Hospital.

When was this NPI record last updated?

The NPPES record for Nathaniel Fessehaie was last updated on April 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.