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DR. WARREN CHUANG M.D.
NPI 1982862975
Internal Medicine in Boston, MA

Active since May 28, 2008PECOS EnrolledAccepts Medicare Assignment
1 BOSTON MEDICAL CTR PL, BOSTON, MA 02118(781) 354-4939 Get Directions Write a Review

NPPES record last updated: January 15, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Dr. Warren Chuang M.d. NPPES

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

DR. WARREN CHUANG M.D. (NPI 1982862975) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (236293) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1982862975
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WARREN CHUANGCredential: M.D.
Location Address1 BOSTON MEDICAL CTR PLBoston, MA 02118-2908
Mailing Address860 Harrison Ave Apt 1009Boston, MA 02118-4025
Phone(781) 354-4939
Sole ProprietorYes
Medical School CMSBoston University School Of MedicineGraduated 2005
Enumeration DateMay 28, 2008
Last NPPES UpdateJanuary 15, 2026
NPPES CertifiedJanuary 15, 2026
✔ NPI 1982862975 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 · 236293
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.
1 BOSTON MEDICAL CTR PL, Boston, MA 02118
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Secondary Practice Locations 2

Location 175 Francis StBoston, MA 02115-6110 · Phone (617) 983-7000
Location 21153 Centre StJamaica Plain, MA 02130-3446 · Phone (617) 983-7000

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. Warren Chuang M.d. 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 ID7315005550
PECOS Enrollment IDI20081016000554
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 2

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 services36 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
11 services11 patients

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 02118 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.

SOPHIA N. TOWNSEND CRNA
Nurse Anesthetist, Certified Registered
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Suffolk County (617) 638-6950
MADELYN ROSE CHAMIS
Physician Assistant
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Suffolk County (617) 638-8000
DR. NICKKI P DAWES
Psychologist (Clinical)
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Suffolk County (617) 414-5245
COMFORT ATWEREBOANAH
Nurse Practitioner (Psychiatric/Mental Health)
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Suffolk County (617) 414-5245
SOFIA PHAM
Student in an Organized Health Care Education/Training Program
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Suffolk County (617) 638-8000
ANEESH T NARANG MD
Emergency Medicine
1 BOSTON MEDICAL CTR PL, DOWLING 1 SOUTH
BOSTON, MA 02118
Suffolk County (617) 414-5481
TEMITAYO OKUBANJO PHARM.D, BCPS
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1 BOSTON MEDICAL CTR PL
BOSTON, MA 02118
Suffolk County (617) 638-8000
DEBORAH A DAVOLIO NP
Nurse Practitioner
1 BOSTON MEDICAL CTR PL, DOWLING 1 SOUTH
BOSTON, MA 02118
Suffolk County (617) 414-5481

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 Warren Chuang's NPI number?

The NPI number for Warren Chuang is 1982862975. It was assigned to this individual provider in the NPPES registry on May 28, 2008.

Where is Warren Chuang located?

Warren Chuang practices at 1 Boston Medical Ctr Pl, Boston, MA 02118. The listed phone number is (781) 354-4939.

What is Warren Chuang's specialty?

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

Is Warren Chuang enrolled in Medicare?

Yes. Warren Chuang 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 Warren Chuang affiliated with any hospitals?

According to CMS data, Warren Chuang is affiliated with Massachusetts General Hospital.

When was this NPI record last updated?

The NPPES record for Warren Chuang was last updated on January 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.