ANNIE SONG MD
NPI 1073978334
Anesthesiology in Boston, MA
About Annie Song Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANNIE SONG MD (NPI 1073978334) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (1014811) and active in the NPI registry since December 2015. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Johns Hopkins University School Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses
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
Annie Song 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.
Medicare Billing Reassignment
Medicare enrollment records show Annie Song reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 478 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 5
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MAMassachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MAOther 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
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 Annie Song's NPI number?
The NPI number for Annie Song is 1073978334. It was assigned to this individual provider in the NPPES registry on December 30, 2015.
Where is Annie Song located?
Annie Song practices at 243 Charles St, Boston, MA 02114. The listed phone number is (617) 573-3380.
What is Annie Song's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Annie Song enrolled in Medicare?
Yes. Annie Song 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 organization bills Medicare for Annie Song's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Annie Song reassigns Medicare benefits to Massachusetts Eye And Ear Associates, Inc. (Boston, MA). The 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 Annie Song's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Annie Song affiliated with any hospitals?
According to CMS data, Annie Song is affiliated with Massachusetts General Hospital and Massachusetts Eye And Ear Infirmary -.
When was this NPI record last updated?
The NPPES record for Annie Song was last updated on August 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.