DR. HONG MEI
NPI 1841473477
Internal Medicine - Rheumatology in Boston, MA
About Dr. Hong Mei NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HONG MEI (NPI 1841473477) is an individual rheumatology provider in Boston, Massachusetts, licensed in Massachusetts (240540) and active in the NPI registry since December 2007. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Stanford University School Of Medicine (2006).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Hong Mei 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.
Medicare Billing Reassignments
3Medicare enrollment records show Hong Mei reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Salem, NH 03079
- Reassigned Medicare billing, Massachusetts enrollment
- 181 clinicians in this Medicare group
Pittsfield, MA 01201
- Reassigned Medicare billing, Massachusetts enrollment
- 405 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAPhysician 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.
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.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Hong Mei's NPI number?
The NPI number for Hong Mei is 1841473477. It was assigned to this individual provider in the NPPES registry on December 5, 2007.
Where is Hong Mei located?
Hong Mei practices at 55 Fruit St Yawkey 2, Boston, MA 02114. The listed phone number is (617) 726-2000.
What is Hong Mei's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Hong Mei enrolled in Medicare?
Yes. Hong Mei 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.
Which organizations bill Medicare for Hong Mei's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hong Mei reassigns Medicare benefits to 3 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), Mass General Brigham Medical Group, Inc. (Salem, NH) and Berkshire Faculty Services Inc (Pittsfield, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Hong Mei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hong Mei accept?
Health plans from Anthem Blue Cross and Blue Shield, Taro Health and WellSense Health Plan list Hong Mei 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 Hong Mei affiliated with any hospitals?
According to CMS data, Hong Mei is affiliated with Massachusetts General Hospital, Newton-Wellesley Hospital, Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for Hong Mei was last updated on August 17, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.