Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. PETER LOUIS LOU MD
NPI 1316937709
Ophthalmology in Boston, MA

Q: 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.

Q: What is Peter Lou's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: 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 31 days 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.

Active since October 26, 2005PECOS Enrolled

100/100

CMS Quality Rating

10 HAWTHORNE PL, SUITE 106, BOSTON, MA 02114(617) 523-0955(617) 523-5376 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

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

NPI1316937709

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. PETER LOUIS LOUCredential: MD

Location Address10 HAWTHORNE PL, SUITE 106Boston, MA 02114-2336

Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894

Phone(617) 523-0955

Fax(617) 523-5376

Sole ProprietorNo

Medical School CMSOtherGraduated 1974

Enumeration DateOctober 26, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1316937709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in MA · 41309

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

10 HAWTHORNE PL, Boston, MA 02114

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Other Identifiers 3

Medicaid2061538MA

OtherM09543MA · Bcbs Ma

Other704090MA · Tufts Health Plan

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield.Insurance ›

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. 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.

PECOS PAC ID9739129578

PECOS Enrollment IDI20050511000118

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 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.

Injection, faricimab-svoa, 0.1 mg J2777

Faricimab-svoa is a medication given through an injection into the eye to treat certain eye conditions. The 0.1 mg dosage helps control disease progression, improving vision and eye health. The procedure is done by a healthcare professional.

5,470 services28 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

718 services416 patients

Established patient complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

629 services366 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

530 services299 patients

Injection of drug into eye 67028

An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.

230 services73 patients

Established patient problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

183 services155 patients

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.

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

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

100

Improvement Activities

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.

PETER L. LOU MD

Ophthalmology

10 HAWTHORNE PL, SUITE 106
BOSTON, MA 02114

Suffolk County (617) 523-0955

DR. DAVID W LHOWE MD

Orthopaedic Surgery

10 HAWTHORNE PL, SUITE 115
BOSTON, MA 02114

Suffolk County (617) 724-2800

DR. LISA MEI-INN WONG MD

Pediatrics

10 HAWTHORNE PL, SUITE 110
BOSTON, MA 02114

Suffolk County (617) 724-0924

PETER LOU, M.D. P.C.

Ophthalmology

10 HAWTHORNE PL, SUITE 106
BOSTON, MA 02114

Suffolk County (617) 523-0955

RILEY & HAN DENTAL ASSOCIATES, LLC

Clinic/Center (Dental)

10 HAWTHORNE PL, SUITE 102
BOSTON, MA 02114

Suffolk County (617) 723-4032

DR. EDWIN J RILEY III DMD

Dentist (Prosthodontics)

10 HAWTHORNE PL, SUITE 102
BOSTON, MA 02114

Suffolk County (617) 723-4032

DR. PAULINE C PAPPAS MD

Pediatrics

10 HAWTHORNE PL, STE 110
BOSTON, MA 02114

Suffolk County (617) 724-0924

DR. REBECCA NILOFF MD

Pediatrics

10 HAWTHORNE PL, STE 110
BOSTON, MA 02114

Suffolk County (617) 724-0924

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.

What insurance does Peter Lou accept?

Health plans from Anthem Blue Cross and Blue Sheld and Anthem Blue Cross and Blue Shield 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 31 days 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.