PERRY G. AN MD
NPI 1508992934
Internal Medicine in Newton, MA
About Perry G. An Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PERRY G. AN MD (NPI 1508992934) is an individual internal medicine provider in Newton, Massachusetts, licensed in Massachusetts (L-224456) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of New York University School Of Medicine (2005).
NPPES Registry Identity
Specialties & Licenses
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
Perry G. An 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 Perry An reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 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 6
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, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02462 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
NEWTON, MA 02462
NEWTON, MA 02462
NEWTON, MA 02462
NEWTON, MA 02462
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 Perry An's NPI number?
The NPI number for Perry An is 1508992934. It was assigned to this individual provider in the NPPES registry on February 27, 2007.
Where is Perry An located?
Perry An practices at 2014 Washington Street Nwh, 2nd Floor, Hospitalist Office, Newton, MA 02462. The listed phone number is (617) 243-6433.
What is Perry An's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Perry An enrolled in Medicare?
Yes. Perry An 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 Perry An's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Perry An reassigns Medicare benefits to Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, 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 Perry An's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Perry An accept?
Health plans from Taro Health list Perry An 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 Perry An affiliated with any hospitals?
According to CMS data, Perry An is affiliated with Massachusetts General Hospital and Newton-Wellesley Hospital.
When was this NPI record last updated?
The NPPES record for Perry An was last updated on October 26, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Perry G. An, MD · NPI 1508992934
Internal Medicine physician in Newton, Massachusetts. Individual provider, active in the CMS NPPES registry since February 27, 2007.
## Identity
- **NPI:** 1508992934 (Entity type: Individual)
- **Enumerated:** February 27, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** L-224456 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 2014 WASHINGTON STREET, NWH, 2ND FLOOR, HOSPITALIST OFFICE, Newton, MA 02462
- **Phone:** (617) 243-6433 · **Fax:** (617) 243-5148
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Mass General Brigham Medical Group Suburban Massachusetts Inc (NPI 1538191218, Newton, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York University School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** October 26, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1508992934) · Data from the CMS NPPES public registry.