Marianne E. Langlois, PA-C
- Medicare patients, 2024
- 19
- Hospital affiliations
- 1
- Industry payments
- $2,000
- Medical groups
- 2
- State license
- 1
- Practice address
- 246 N Main St, South Hadley, MA 01075
- Practice phone
- Call (413) 538-7551
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Loomis House, Inc
South Hadley, Massachusetts
Find Marianne Langlois' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Marianne E. Langlois is a physician assistant in South Hadley, Massachusetts
Marianne Langlois practices at Loomis House, Inc in South Hadley, Massachusetts.
Marianne Langlois' NPI, 1093898371, was assigned on October 23, 2006. Marianne Langlois holds Massachusetts license PA475.
- NPI
- 1093898371NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466498464
- NPI enumeration date
- October 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (413) 538-7551
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Marianne E. Langlois practices at Loomis House, Inc in South Hadley, Massachusetts
Marianne Langlois' primary practice is Loomis House, Inc, at 246 N Main St, South Hadley, MA 01075 in Hampshire County. The practice phone is (413) 538-7551.
- Loomis House, Inc246 N Main St, South Hadley, MA 01075 · Hampshire CountyPhone(413) 538-7551
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Marianne E. Langlois is affiliated with 2 sites of care and 2 medical groups
Marianne Langlois' primary practice is Loomis House, Inc in South Hadley, Massachusetts. Marianne Langlois is also affiliated with Mercy Medical Center. The medical group on file is Berkshire Medical Center. Dmand AI also links Marianne Langlois to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marianne E. Langlois' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marianne Langlois practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loomis House, Inc | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Marianne E. Langlois is one of 3,922 physician assistants in Massachusetts
Physician assistant is Marianne Langlois' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Marianne Langlois is licensed in Massachusetts.
Specialties and state licenses
- Physician assistant, MassachusettsPrimary
Physician assistants near Marianne Langlois
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Marianne E. Langlois treated 19 Medicare patients in 2024, average age 74
CMS counts 19 Medicare patients who saw Marianne Langlois in 2024. 75% of them have heart failure, and 75% have high blood pressure. Their average risk score is 2.78, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marianne Langlois' median patient age at 66, with 33% women.
Chronic conditions among Marianne Langlois' Medicare patients, 2024
- Heart failure75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders63%
- Chronic kidney disease58%
- Depression58%
- Ischemic heart disease58%
Share of Medicare patients with each condition. A patient can have several.
Marianne Langlois' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women33%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Marianne E. Langlois takes part in Medicare
Marianne Langlois accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Marianne E. Langlois received $2,000 in industry payments in 2025
CMS Open Payments shows 1 general payment to Marianne Langlois from 1 drug or device company in 2025. Speaker and faculty fees make up the largest share, 100% of the total. Pfizer Inc. paid the most, $2,000.
Companies that paid Marianne Langlois the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marianne E. Langlois's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Marianne E. Langlois
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marianne E. Langlois' NPI number?
Marianne E. Langlois' NPI number is 1093898371. It was assigned on October 23, 2006, and it is active in the NPI Registry.
What does Marianne E. Langlois specialize in?
Marianne E. Langlois is a physician assistant in South Hadley, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marianne E. Langlois practice?
Marianne Langlois practices at 246 N Main St, South Hadley, MA 01075. Marianne Langlois' primary practice is Loomis House, Inc in South Hadley, Massachusetts. Dmand AI also links Marianne Langlois to 1 medical group.
What is Marianne E. Langlois' office phone number?
The practice phone on file for Marianne Langlois is (413) 538-7551.
What is Marianne E. Langlois' medical license number?
Marianne Langlois holds Massachusetts license PA475.
Which hospitals is Marianne E. Langlois affiliated with?
Marianne Langlois is affiliated with Mercy Medical Center.
What medical group is Marianne E. Langlois part of?
Marianne Langlois is linked to Berkshire Medical Center. Dmand AI links Marianne Langlois to 1 more medical group.
Does Marianne E. Langlois accept Medicare?
Yes. CMS lists Marianne Langlois as accepting Medicare assignment.
How many Medicare patients does Marianne E. Langlois see?
CMS counts 19 Medicare patients who saw Marianne Langlois in 2024, with an average age of 74.
Has Marianne E. Langlois received payments from drug or device companies?
CMS Open Payments shows $2,000 in general payments to Marianne Langlois from 1 company from 2025 to 2025. The largest total came from Pfizer Inc.
How long has Marianne E. Langlois been practicing?
Marianne Langlois graduated from medical school in 1989, 37 years ago.
Selling to physician assistant practices?
See physician assistants in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card