Dr. Prashanth Rau, MD

  • Mendon, MA
  • Gastroenterologist
NPI1336501311PAC ID2163716044
Medicare services, 2024
528
Medicare patients, 2024
266
Part D claims, 2024
349
Publications
15
MIPS score, 2024
100
Practice address
55 North Ave, Mendon, MA 01756
Practice phone
Call (508) 334-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Umass Memorial Medical Center

Mendon, Massachusetts

See all 7 affiliations

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Dr. Prashanth Rau is a gastroenterologist in Mendon, Massachusetts

Dr. Rau practices at Umass Memorial Medical Center in Mendon, Massachusetts.

Dr. Rau's NPI, 1336501311, was assigned on March 28, 2016. Dr. Rau graduated from University of Massachusetts Medical School in 2016. Dr. Rau holds Massachusetts license 292150.

NPI and contact details
Medicare PAC ID
2163716044
NPI enumeration date
March 28, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(508) 334-1000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
36
Medical school graduation
2016

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Prashanth Rau practices at Umass Memorial Medical Center in Mendon, Massachusetts

Dr. Rau'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 Center
    55 North Ave, Mendon, MA 01756 · Worcester CountyPhone(508) 334-1000

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

Dr. Prashanth Rau is affiliated with 6 sites of care and 1 medical group

Dr. Rau's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Rau is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Rau to 3 more hospitals and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Dr. Rau

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

Dmand AI tracks the EHR system at Dr. Prashanth Rau's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rau practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Umass Memorial Medical CenterAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Prashanth Rau is one of 597 gastroenterologists in Massachusetts

Gastroenterology is Dr. Rau's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Rau is licensed in Massachusetts.

Specialties and state licenses

  • Gastroenterology, MassachusettsPrimaryLicense 292150 · taxonomy 207RG0100X

Gastroenterologists near Dr. Rau

Counts of gastroenterologists 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. Prashanth Rau billed Medicare for 528 services in 2024

CMS data shows 528 Medicare services from Dr. Rau across 14 procedure codes in 2024, for 266 Medicare patients. Medicare paid $55,389 for them.

Medicare services, 2024528
Medicare patients266
Paid by Medicare$55,389
Procedure codes14

Dr. Rau's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 1502024: 337125%
Imaging
2023: 172024: 118594%
Other services
2023: 482024: 3723%
Office and hospital visits
2023: 312024: 3616%

Where Dr. Rau's Medicare services took place, 2024

  • In an office428%
  • In a facility48692%

Dr. Rau compared with the Massachusetts median for gastroenterologists, 2024

  • Dr. Rau
  • Massachusetts median
Medicare services
528vs 519Close to median
Medicare patients
266vs 34322% below
Part D claims
293vs 300Close to median

Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Rau'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.

See all procedures by Dr. Rau

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

Dr. Prashanth Rau treated 266 Medicare patients in 2024, average age 72

CMS counts 266 Medicare patients who saw Dr. Rau in 2024. The largest group is 65 to 74, with 112 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 34% are also on Medicaid. Their average risk score is 1.59, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Rau's median patient age at 72, with 56% women.

Medicare patients, 2024266
Average age72
Average risk score1.59
Also on Medicaid34%

Dr. Rau's Medicare patients by age, 2024

Dr. Rau's Medicare patients by sex, 2024

  • Women15257%
  • Men11443%

Chronic conditions among Dr. Rau's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure73%
  3. Anxiety38%
  4. Arthritis38%
  5. Mood disorders35%
  6. Ischemic heart disease33%
  7. Depression32%
  8. Chronic kidney disease31%

Share of Medicare patients with each condition. A patient can have several.

Dr. Rau's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women56%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Prashanth Rau wrote 349 Medicare Part D claims in 2024

In 2024, Dr. Rau wrote 349 Medicare Part D claims for 226 patients. 90% of them were for generic drugs. CMS names the drug for 293 of them, across 7 drugs with 11 or more claims each, at $6,869 in total drug cost. In 2023, CMS named 212 claims across 7 drugs.

Part D claims, 2024349
Drugs named by CMS7
Total drug cost$6,869
Part D patients226

Dr. Rau's Part D claims by kind of drug, 2024

  • Generic313 claims90%
  • Brand-name36 claims10%

Dr. Rau's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Rau's Part D claims, 2024

  • Antibiotics4%15 of 349 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2122024: 29338%

Drugs named by CMS: 7 in 2024, 7 in 2023.

See all prescribing by Dr. Rau

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Prashanth Rau 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. Rau for performance year 2024, reported through an alternative payment model (APM). Dr. Rau accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rau as offering telehealth. CMS counts 315 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Rau, more than 96% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Rau'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.

Where Dr. Rau ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
96th percentile315 procedures
Colonoscopy
78th percentile91 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

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. Prashanth Rau has 15 publications on record

Dmand AI links 15 papers to Dr. Rau, published from 2021 to 2025. 2022 was the busiest year, with 4. Dr. Rau has published most often in VideoGIE. Dr. Rau's most frequent co-authors are Neil B. Marya, MD, Mark Hanscom, MD and Andrew Charles Storm, MD.

Papers15
Years published2021 to 2025

Dr. Rau's papers by year, 2021 to 2025

Dr. Rau's most frequent co-authors

Recent publications by Dr. Rau

See all 15 publications and co-authors

See who Dr. Rau researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rau works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Prashanth Rau received $4,374 in industry payments from 2022 to 2025

CMS Open Payments shows 30 general payments to Dr. Rau from 4 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 49% of the total. Boston Scientific Corporation paid the most, $4,107.

General payments to Dr. Rau by program year, 2022 to 2025

General payments to Dr. Rau by kind, 2022 to 2025

$4.4Kin total
  • Food and beverage$2,13249%
  • Travel and lodging$2,10848%
  • Education$1353%

Companies that paid Dr. Rau the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Rau

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

Dr. Prashanth Rau graduated from University of Massachusetts Medical School

Dr. Rau graduated from University of Massachusetts Medical School in 2016.

  1. Medical schoolUniversity of Massachusetts Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Prashanth Rau'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 DataDmand AI Affiliation 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
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
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. Prashanth Rau

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. Prashanth Rau's NPI number?

Dr. Prashanth Rau's NPI number is 1336501311. It was assigned on March 28, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Prashanth Rau?

Dr. Prashanth Rau is a gastroenterologist in Mendon, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Prashanth Rau practice?

Dr. Rau practices at 55 North Ave, Mendon, MA 01756. Dr. Rau's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dmand AI also links Dr. Rau to 3 hospitals and 1 group practice or clinic.

What is Dr. Prashanth Rau's office phone number?

The practice phone on file for Dr. Rau is (508) 334-1000.

What is Dr. Prashanth Rau's medical license number?

Dr. Rau holds Massachusetts license 292150.

Which hospitals is Dr. Prashanth Rau affiliated with?

Dr. Rau is affiliated with UMass Memorial Medical Center - University Campus. Dmand AI links Dr. Rau to 3 more hospitals.

What medical group is Dr. Prashanth Rau part of?

Dr. Rau is linked to UMass Memorial Medical Group.

Does Dr. Prashanth Rau accept Medicare?

Yes. CMS data shows Dr. Rau billed Medicare for 528 services in 2024, and Dr. Rau accepts Medicare assignment.

Does Dr. Prashanth Rau offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Rau as offering telehealth services.

What is Dr. Prashanth Rau's MIPS score?

Dr. Rau's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Prashanth Rau see?

CMS counts 266 Medicare patients who saw Dr. Rau in 2024, with an average age of 72.

What services does Dr. Prashanth Rau bill to Medicare?

In 2024, Dr. Rau's most billed Medicare services were diagnostic imaging (74328), surgery: digestive system (43239) and surgery: digestive system (43264).

Where did Dr. Prashanth Rau go to medical school?

Dr. Rau graduated from University of Massachusetts Medical School in 2016.

What drugs does Dr. Prashanth Rau prescribe most?

In 2024 Medicare Part D data, Dr. Rau's most prescribed drugs by claims were Omeprazole, Gavilyte-G and Gavilyte-C.

Has Dr. Prashanth Rau received payments from drug or device companies?

CMS Open Payments shows $4,374 in general payments to Dr. Rau from 4 companies from 2022 to 2025. The largest total came from Boston Scientific Corporation.

How long has Dr. Prashanth Rau been practicing?

Dr. Rau graduated from medical school in 2016, 10 years ago.

Does Dr. Prashanth Rau do research?

Dmand AI links 15 publications to Dr. Rau, published from 2021 to 2025.

Who does Dr. Prashanth Rau publish with?

Dr. Rau's most frequent co-authors are Neil B. Marya, MD (14 shared papers), Mark Hanscom, MD (6 shared papers) and Andrew Charles Storm, MD (3 shared papers).

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