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DR. JONATHAN MICHAEL DOWNIE MD, PHD
NPI 1306305503
Internal Medicine - Gastroenterology in Boston, MA

Active since March 18, 2019PECOS EnrolledAccepts Medicare Assignment

NPPES record last updated: May 7, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 7, 2025, Sep 9, 2022, Jul 1, 2019 and 1 more (4 updates tracked since 2019).

About Dr. Jonathan Michael Downie Md, Phd NPPES

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

DR. JONATHAN MICHAEL DOWNIE MD, PHD (NPI 1306305503) is an individual gastroenterology provider in Boston, Massachusetts, licensed in Massachusetts (291581) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and is a graduate of University Of Utah School Of Medicine (2019).

NPPES Registry Identity

NPI1306305503
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. JONATHAN MICHAEL DOWNIECredential: MD, PHD
Location Address55 FRUIT STBoston, MA 02114-2621
Mailing Address15 Parkman St Fl 5Boston, MA 02114-3117 · (617) 726-2426
Phone(617) 726-2000
Sole ProprietorYes
Medical School CMSUniversity Of Utah School Of MedicineGraduated 2019
Enumeration DateMarch 18, 2019
Last NPPES UpdateMay 7, 20254 updates tracked since enumeration
NPPES CertifiedMay 7, 2025
✔ NPI 1306305503 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in MA · 291581
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
55 FRUIT ST, Boston, MA 02114
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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. Jonathan Michael Downie Md, Phd 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 ID7618206970
PECOS Enrollment IDI20250529000937
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 2

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

Mount Auburn Hospital

Acute Care Hospitals · Cambridge, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220002
Location330 Mount Auburn StreetCambridge, MA 02138 · Middlesex County
Emergency services Birthing friendly

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 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.

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.

STUTI GIRISH SHROFF MD, MBBS
Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2971
NANCY WANG M.D.
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (017) 724-4000
DR. DUSAN HANIDZIAR M.D., PH.D.
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Suffolk County (617) 726-3030
JOHN JOSEPH DANKO DO
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2000
DR. MICHAEL ANDREW LOBRITZ M.D, PH.D.
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Suffolk County (617) 724-9248
MS. KELLY ELISHA TRECARTIN NP
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Suffolk County (617) 726-7400
JAMIE MARIE ALLEN NP
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 724-4410
DR. DHAVAL SANJEEV KOLTE M.B.B.S., PH.D.
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 643-3238

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 Jonathan Downie's NPI number?

The NPI number for Jonathan Downie is 1306305503. It was assigned to this individual provider in the NPPES registry on March 18, 2019.

Where is Jonathan Downie located?

Jonathan Downie practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2000.

What is Jonathan Downie's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Jonathan Downie enrolled in Medicare?

Yes. Jonathan Downie 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 Jonathan Downie accept?

Health plans from Anthem Blue Cross and Blue Shield list Jonathan Downie 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 Jonathan Downie affiliated with any hospitals?

According to CMS data, Jonathan Downie is affiliated with Mount Auburn Hospital and Massachusetts General Hospital.

When was this NPI record last updated?

The NPPES record for Jonathan Downie was last updated on May 7, 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.