DR. PETER LOUIS LOU MD
NPI 1316937709
Ophthalmology in Boston, MA
About Dr. Peter Louis Lou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER LOUIS LOU MD (NPI 1316937709) is an individual ophthalmology provider in Boston, Massachusetts, licensed in Massachusetts (41309) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1974).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Peter Louis Lou 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 Reassignments
5Medicare enrollment records show Peter Lou reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Wakefield, MA 01880
- Reassigned Medicare billing, Massachusetts enrollment
- 14 clinicians in this Medicare group
Wakefield, MA 01880
- Reassigned Medicare billing, Massachusetts enrollment
- 14 clinicians in this Medicare group
Waltham, MA 02451
- Reassigned Medicare billing, Massachusetts enrollment
- 7 clinicians in this Medicare group
Andover, MA 01810
- Reassigned Medicare billing, Massachusetts enrollment
- 18 clinicians in this Medicare group
Worcester, MA 01605
- Reassigned Medicare billing, Massachusetts enrollment
- 5 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 11
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.
Physician 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Peter Lou's NPI number?
The NPI number for Peter Lou is 1316937709. It was assigned to this individual provider in the NPPES registry on October 26, 2005.
Where is Peter Lou located?
Peter Lou practices at 10 Hawthorne Pl Suite 106, Boston, MA 02114. The listed phone number is (617) 523-0955.
What is Peter Lou's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Peter Lou enrolled in Medicare?
Yes. Peter Lou 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 Peter Lou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Lou reassigns Medicare benefits to 5 organizations: North Suburban Eye Associates LLC (Wakefield, MA), North Suburban Eye Associates PC (Wakefield, MA), Massachusetts Eye Research And Surgery Institution, PC (Waltham, MA), Andover Eye Associates, Inc (Andover, MA) and Retina Consultants Of Worcester PC (Worcester, 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 Peter Lou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peter Lou accept?
Health plans from Anthem Blue Cross and Blue Shield, Providence Health Plan and Taro Health list Peter Lou 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.
When was this NPI record last updated?
The NPPES record for Peter Lou was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Peter Louis Lou, MD · NPI 1316937709
Ophthalmology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 26, 2005.
## Identity
- **NPI:** 1316937709 (Entity type: Individual)
- **Enumerated:** October 26, 2005
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 41309 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 10 HAWTHORNE PL, SUITE 106, Boston, MA 02114-2336
- **Phone:** (617) 523-0955 · **Fax:** (617) 523-5376
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): North Suburban Eye Associates LLC (NPI 1942737226, Wakefield, MA); North Suburban Eye Associates PC (NPI 1942351994, Wakefield, MA); Massachusetts Eye Research And Surgery Institution, PC (NPI 1639230527, Waltham, MA); Andover Eye Associates, Inc (NPI 1588678551, Andover, MA); Retina Consultants Of Worcester PC (NPI 1144397498, Worcester, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1974
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 2061538 (MA); Other M09543 (MA); Other 704090 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1316937709) · Data from the CMS NPPES public registry.