DR. LOUIS PATRICK KESTER MD
NPI 1326675505
Surgery in Boston, MA

Active since March 26, 2020PECOS Enrolled
165 CAMBRIDGE ST, BOSTON, MA 02114(617) 726-9591 Get Directions Write a Review

NPPES record last updated: August 27, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 27, 2026, Jul 19, 2026, Jul 3, 2025 and 2 more (5 updates tracked since 2020).

About Dr. Louis Patrick Kester Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LOUIS PATRICK KESTER MD (NPI 1326675505) is an individual surgery provider in Boston, Massachusetts, licensed in Massachusetts (1027720) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Drexel University College Of Medicine (2020).

NPPES Registry Identity

NPI1326675505
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. LOUIS PATRICK KESTERCredential: MD
Location Address165 CAMBRIDGE STBoston, MA 02114-2747
Mailing Address165 Cambridge StBoston, MA 02114-2747
Sole ProprietorNo
Medical School CMSDrexel University College Of MedicineGraduated 2020
Enumeration DateMarch 26, 2020
Last NPPES UpdateAugust 27, 20265 updates tracked since enumeration
NPPES CertifiedAugust 27, 2026
✔ NPI 1326675505 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MA · 1027720
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 1027720 (MA)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 4301514294 (MI)
165 CAMBRIDGE ST, Boston, MA 02114

Secondary Practice Location 1

Location 175 Francis StBoston, MA 02115-6106 · Phone (617) 732-5500

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Louis Patrick Kester Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7810307220
PECOS Enrollment IDI20260903000878
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Louis Kester reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 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.

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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
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.

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.

Registered Nurse (Ambulatory Care)
165 CAMBRIDGE ST, MGH CROHN'S AND COLITIS CENTER
BOSTON, MA 02114
Nuclear Medicine
165 CAMBRIDGE ST, SUITE 400
BOSTON, MA 02114
Nurse Practitioner
165 CAMBRIDGE ST, GI ASSOCIATES AT CHARLES RIVER PLAZA, 9TH FLOOR
BOSTON, MA 02114
Internal Medicine (Nephrology)
165 CAMBRIDGE ST
BOSTON, MA 02114
Surgery (Trauma Surgery)
165 CAMBRIDGE ST
BOSTON, MA 02114
Nurse Practitioner (Adult Health)
165 CAMBRIDGE ST
BOSTON, MA 02114
Dietitian, Registered
165 CAMBRIDGE ST, SUITE 402
BOSTON, MA 02114
Nurse Practitioner (Family)
165 CAMBRIDGE ST, CHARLES RIVER PLAZA, SUITE 404
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 Louis Kester's NPI number?

The NPI number for Louis Kester is 1326675505. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Where is Louis Kester located?

Louis Kester practices at 165 Cambridge St, Boston, MA 02114. The listed phone number is (617) 726-9591.

What is Louis Kester's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Louis Kester enrolled in Medicare?

Yes. Louis Kester is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Louis Kester's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louis Kester reassigns Medicare benefits to 3 organizations: The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA) and Brigham & Womens Physicians Organization Inc (Boston, 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 Louis Kester's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Louis Kester accept?

Health plans from Anthem Blue Cross and Blue Shield list Louis Kester 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 Louis Kester was last updated on August 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.