Dr. David N. Louis, MD

  • Framingham, MA
  • Pathologist
NPI1326038753
Medicare services, 2021
132
Industry payments
$28
State license
1
Year NPI issued
2005
Practice address
115 Lincoln St, Framingham, MA 01702
Practice phone
Call (508) 383-1012
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Metrowest Medical Center - Framingham Union Hospital

Framingham, Massachusetts

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Dr. David N. Louis is a pathologist in Framingham, Massachusetts

Dr. Louis practices at Metrowest Medical Center - Framingham Union Hospital in Framingham, Massachusetts.

Dr. Louis' NPI, 1326038753, was assigned on October 26, 2005. Dr. Louis holds Massachusetts license 57278.

NPI and contact details
NPI enumeration date
October 26, 2005
NPI status
Active
Practice phone
(508) 383-1012
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. David N. Louis practices at Metrowest Medical Center - Framingham Union Hospital in Framingham, Massachusetts

Dr. Louis' primary practice is Metrowest Medical Center - Framingham Union Hospital, at 115 Lincoln St, Framingham, MA 01702 in Middlesex County. The practice phone is (508) 383-1012.

  • Metrowest Medical Center - Framingham Union Hospital
    115 Lincoln St, Framingham, MA 01702 · Middlesex CountyPhone(508) 383-1012

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. David N. Louis is affiliated with 1 site of care

Dr. Louis' primary practice is Metrowest Medical Center - Framingham Union Hospital in Framingham, Massachusetts.

Metrowest Medical Center - Framingham Union HospitalFramingham, MassachusettsPrimary

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. David N. Louis' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Louis practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Metrowest Medical Center - Framingham Union HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. David N. Louis is one of 174 pathologists in Massachusetts

Anatomic pathology is Dr. Louis' primary specialty in the NPI Registry, under taxonomy code 207ZP0101X. Dr. Louis is licensed in Massachusetts.

Specialties and state licenses

  • Anatomic pathology, MassachusettsPrimaryLicense 57278 · taxonomy 207ZP0101X

Pathologists near Dr. Louis

Counts of pathologists with a Dmand AI profile, by place and practice. Each opens the list.

174pathologists in Massachusetts
4pathologists in Framingham

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. David N. Louis billed Medicare for 132 services in 2021

CMS data shows 132 Medicare services from Dr. Louis across 5 procedure codes in 2021. Medicare paid $5,440 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2021132
Paid by Medicare$5,440
Procedure codes5

Dr. Louis' Medicare services by type, 2020 to 2021

  • 2020
  • 2021
Lab and pathology
2020: 712021: 13286%

Dr. Louis compared with the Massachusetts median for pathologists, 2021

  • Dr. Louis
  • Massachusetts median
Medicare services
132vs 1,01987% below

Medians across 169 pathologists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Louis' most billed Medicare procedure codes, 2021

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

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Dr. David N. Louis received $28 in industry payments in 2024

CMS Open Payments shows 1 general payment to Dr. Louis from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Zimmer Biomet Holdings, Inc. paid the most, $28.

Companies that paid Dr. Louis the most, 2024 to 2024

Share is of all general payments to this clinician.

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Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. David N. Louis's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. David N. Louis

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What is Dr. David N. Louis' NPI number?

Dr. David N. Louis' NPI number is 1326038753. It was assigned on October 26, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. David N. Louis?

Dr. David N. Louis is a pathologist in Framingham, Massachusetts. The primary specialty in the NPI Registry is Anatomic Pathology Physician (taxonomy code 207ZP0101X).

Where does Dr. David N. Louis practice?

Dr. Louis practices at 115 Lincoln St, Framingham, MA 01702. Dr. Louis' primary practice is Metrowest Medical Center - Framingham Union Hospital in Framingham, Massachusetts.

What is Dr. David N. Louis' office phone number?

The practice phone on file for Dr. Louis is (508) 383-1012.

What is Dr. David N. Louis' medical license number?

Dr. Louis holds Massachusetts license 57278.

Does Dr. David N. Louis accept Medicare?

Yes. CMS data shows Dr. Louis billed Medicare for 132 services in 2021.

What services does Dr. David N. Louis bill to Medicare?

In 2021, Dr. Louis' most billed Medicare services were lab and pathology test (88341), lab and pathology test (88307) and lab and pathology test (88331).

Has Dr. David N. Louis received payments from drug or device companies?

CMS Open Payments shows $28 in general payments to Dr. Louis from 1 company from 2024 to 2024. The largest total came from Zimmer Biomet Holdings, Inc.

How long has Dr. David N. Louis been practicing?

Dr. Louis' NPI was assigned in 2005.

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