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AILEEN ANNE REN MD, PHD
NPI 1285338814
Internal Medicine - Cardiovascular Disease in Boston, MA

Active since March 28, 2023PECOS Enrolled
75 FRANCIS ST, BOSTON, MA 02115(617) 732-5500 Get Directions Write a Review

NPPES record last updated: June 15, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 15, 2025, May 1, 2023, Mar 28, 2023 (3 updates tracked since 2023).

About Aileen Anne Ren Md, Phd NPPES

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

AILEEN ANNE REN MD, PHD (NPI 1285338814) is an individual cardiovascular disease provider in Boston, Massachusetts, licensed in Massachusetts (3018054) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS and maintains a secondary practice location in Philadelphia.

NPPES Registry Identity

NPI1285338814
Entity TypeIndividualFemale
Primary Taxonomy207RC0000X
Provider Legal NameAILEEN ANNE RENCredential: MD, PHD
Location Address75 FRANCIS STBoston, MA 02115-6106
Mailing Address75 Francis StBoston, MA 02115-6106 · (617) 732-5500
Phone(617) 732-5500
Sole ProprietorNo
Enumeration DateMarch 28, 2023
Last NPPES UpdateJune 15, 20253 updates tracked since enumeration
NPPES CertifiedJune 15, 2025
✔ NPI 1285338814 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in MA · 3018054
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
75 FRANCIS ST, Boston, MA 02115
Open in Google Maps ↗

Secondary Practice Location 1

Location 13400 Spruce StPhiladelphia, PA 19104-4238 · Phone (215) 662-2250 · Fax (215) 615-3995

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Aileen Anne Ren Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
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 Aileen Ren's NPI number?

The NPI number for Aileen Ren is 1285338814. It was assigned to this individual provider in the NPPES registry on March 28, 2023.

Where is Aileen Ren located?

Aileen Ren practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.

What is Aileen Ren's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Aileen Ren enrolled in Medicare?

Yes. Aileen Ren is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Aileen Ren was last updated on June 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.