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Abdominal PainAnemiaCapsule Endoscopy
Dr. Demetrius E. Litwin, MD
NPI1144204272PAC ID9638113053
- Medicare services, 2024
- 44
- Medicare patients, 2024
- 37
- Publications
- 1
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Practice address
- 55 North Ave, Mendon, MA 01756
- Practice phone
- Call (508) 334-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Umass Memorial Medical Center
Mendon, Massachusetts
Find Dr. Litwin's 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.
Dr. Demetrius E. Litwin is a general surgeon in Mendon, Massachusetts
Dr. Litwin practices at Umass Memorial Medical Center in Mendon, Massachusetts.
Dr. Litwin's NPI, 1144204272, was assigned on December 1, 2005. Dr. Litwin holds Massachusetts license 155018.
NPI and contact details
- NPI
- 1144204272NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638113053
- NPI enumeration date
- December 1, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 334-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Demetrius E. Litwin practices at Umass Memorial Medical Center in Mendon, Massachusetts
Dr. Litwin's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.
- Umass Memorial Medical Center55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Demetrius E. Litwin is affiliated with 2 sites of care and 1 medical group
Dr. Litwin's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Litwin is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group.
Umass Memorial Medical CenterPrimary
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 Dr. Demetrius E. Litwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Litwin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Umass Memorial Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Demetrius E. Litwin is one of 732 general surgeons in Massachusetts
Surgery is Dr. Litwin's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Litwin is licensed in Massachusetts.
Specialties and state licenses
- Surgery, MassachusettsPrimary
General surgeons near Dr. Litwin
Counts of general surgeons 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
Dr. Demetrius E. Litwin billed Medicare for 44 services in 2024
CMS data shows 44 Medicare services from Dr. Litwin across 2 procedure codes in 2024, all of them office visits, for 37 Medicare patients. Medicare paid $2,476 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202444
Medicare patients37
Paid by Medicare$2,476
Procedure codes2
Dr. Litwin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 402024: 4410%
Dr. Litwin compared with the Massachusetts median for general surgeons, 2024
- Dr. Litwin
- Massachusetts median
- Medicare services
- 44vs 20078% below
- Medicare patients
- 37vs 15276% below
Medians across 688 general surgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Litwin's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Litwin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Litwin and other general surgeons in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Demetrius E. Litwin treated 37 Medicare patients in 2024, average age 71
CMS counts 37 Medicare patients who saw Dr. Litwin in 2024. The largest group is 65 to 74, with 24 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Litwin's median patient age at 68, with 43% women.
Medicare patients, 202437
Average age71
Average risk score0.93
Dr. Litwin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Litwin's Medicare patients by sex, 2024
- Women2362%
- Men1438%
Chronic conditions among Dr. Litwin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis51%
- Anxiety30%
- Chronic kidney disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Litwin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women43%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Demetrius E. Litwin scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Litwin for performance year 2024, reported through an alternative payment model (APM). Dr. Litwin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Litwin's MIPS scores, performance year 2024
- 100of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Demetrius E. Litwin has 1 publication on record
Dmand AI links 1 paper to Dr. Litwin in 2018. Dr. Litwin's most frequent co-authors are Kevin Paul Baratta, MD, Mitchell Cahan, MD and David R. Cave, MD.
Papers1
Dr. Litwin's most frequent co-authors
Recent publications by Dr. Litwin
See who Dr. Litwin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Litwin works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Demetrius E. Litwin received $3,917 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Litwin from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 53% of the total. Novadaq Technologies Inc. paid the most, $1,737.
General payments to Dr. Litwin by program year, 2016 to 2025
General payments to Dr. Litwin by kind, 2016 to 2025
$3.9Kin total
- Food and beverage$2,09353%
- Education$1,00026%
- Travel and lodging$82421%
Companies that paid Dr. Litwin the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Demetrius E. Litwin'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. Demetrius E. Litwin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Demetrius E. Litwin's NPI number?
Dr. Demetrius E. Litwin's NPI number is 1144204272. It was assigned on December 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Demetrius E. Litwin?
Dr. Demetrius E. Litwin is a general surgeon in Mendon, Massachusetts. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Demetrius E. Litwin practice?
Dr. Litwin practices at 55 North Ave, Mendon, MA 01756. Dr. Litwin's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts.
What is Dr. Demetrius E. Litwin's office phone number?
The practice phone on file for Dr. Litwin is (508) 334-1000.
What is Dr. Demetrius E. Litwin's medical license number?
Dr. Litwin holds Massachusetts license 155018.
Which hospitals is Dr. Demetrius E. Litwin affiliated with?
Dr. Litwin is affiliated with UMass Memorial Medical Center - University Campus.
What medical group is Dr. Demetrius E. Litwin part of?
Dr. Litwin is linked to UMass Memorial Medical Group.
Does Dr. Demetrius E. Litwin accept Medicare?
Yes. CMS data shows Dr. Litwin billed Medicare for 44 services in 2024, and Dr. Litwin accepts Medicare assignment.
What is Dr. Demetrius E. Litwin's MIPS score?
Dr. Litwin's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Demetrius E. Litwin see?
CMS counts 37 Medicare patients who saw Dr. Litwin in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Demetrius E. Litwin bill to Medicare?
In 2024, Dr. Litwin's most billed Medicare services were office visit, established patient (99213) and office visit, new patient (99203).
Has Dr. Demetrius E. Litwin received payments from drug or device companies?
CMS Open Payments shows $3,917 in general payments to Dr. Litwin from 9 companies from 2016 to 2025. The largest total came from Novadaq Technologies Inc.
How long has Dr. Demetrius E. Litwin been practicing?
Dr. Litwin graduated from medical school in 1979, 47 years ago.
Does Dr. Demetrius E. Litwin do research?
Dmand AI links 1 publication to Dr. Litwin.
Who does Dr. Demetrius E. Litwin publish with?
Dr. Litwin's most frequent co-authors are Kevin Paul Baratta, MD (1 shared paper), Mitchell Cahan, MD (1 shared paper) and David R. Cave, MD (1 shared paper).
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