Dr. Andrew S. Allegretti, MD

  • Boston, MA
  • Nephrologist
NPI1427378991PAC ID1355502741
Medicare services, 2024
573
Medicare patients, 2024
237
Part D claims, 2024
502
Publications
89
Clinical trials
1
Practice address
750 Washington St, Boston, MA 02111
Practice phone
Call (617) 636-5442
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Tufts Medical Center

Boston, Massachusetts

See all 12 affiliations

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Dr. Andrew S. Allegretti is a nephrologist in Boston, Massachusetts

Dr. Allegretti practices at Tufts Medical Center in Boston, Massachusetts.

Dr. Allegretti's NPI, 1427378991, was assigned on June 8, 2010. Dr. Allegretti holds Massachusetts license 251043.

NPI and contact details
Medicare PAC ID
1355502741
NPI enumeration date
June 8, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(617) 636-5442
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
42
Medical school graduation
2010

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

Dr. Andrew S. Allegretti practices at Tufts Medical Center in Boston, Massachusetts

Dr. Allegretti's primary practice is Tufts Medical Center, at 750 Washington St, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5442.

  • Tufts Medical Center
    750 Washington St, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5442

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

Dr. Andrew S. Allegretti is affiliated with 9 sites of care and 3 medical groups

Dr. Allegretti's primary practice is Tufts Medical Center in Boston, Massachusetts. Dr. Allegretti is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Allegretti to 4 more hospitals, 2 group practices and clinics, 2 medical groups and 1 dialysis center, each named with a free account.

See all 12 affiliations for Dr. Allegretti

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

Dmand AI tracks the EHR system at Dr. Andrew S. Allegretti's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Allegretti practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Tufts Medical CenterAvailable with a free account
+8 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Andrew S. Allegretti is one of 351 nephrologists in Massachusetts

Nephrology is Dr. Allegretti's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Allegretti is licensed in Massachusetts.

Specialties and state licenses

  • Nephrology, MassachusettsPrimaryLicense L-243795 · taxonomy 207RN0300X

Nephrologists near Dr. Allegretti

Counts of nephrologists 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. Andrew S. Allegretti billed Medicare for 573 services in 2024

CMS data shows 573 Medicare services from Dr. Allegretti across 9 procedure codes in 2024, for 237 Medicare patients. Medicare paid $45,939 for them.

Medicare services, 2024573
Medicare patients237
Paid by Medicare$45,939
Procedure codes9

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

  • 2023
  • 2024
Office and hospital visits
2023: 4672024: 40912%
Tests and treatments
2023: 1382024: 12112%
Other services
2023: 02024: 43

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

  • In an office20836%
  • In a facility36564%

Dr. Allegretti compared with the Massachusetts median for nephrologists, 2024

  • Dr. Allegretti
  • Massachusetts median
Medicare services
573vs 70118% below
Medicare patients
237vs 28216% below
Part D claims
350vs 47126% below

Medians across 333 nephrologists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Allegretti'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. Allegretti

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

Dr. Andrew S. Allegretti treated 237 Medicare patients in 2024, average age 72

CMS counts 237 Medicare patients who saw Dr. Allegretti in 2024. The largest group is 65 to 74, with 98 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 28% are also on Medicaid. Their average risk score is 4.46, 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. Allegretti's median patient age at 74, with 35% women.

Medicare patients, 2024237
Average age72
Average risk score4.46
Also on Medicaid28%

Dr. Allegretti's Medicare patients by age, 2024

Dr. Allegretti's Medicare patients by sex, 2024

  • Women9540%
  • Men14260%

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

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Ischemic heart disease56%
  5. Diabetes53%
  6. Heart failure50%
  7. Arthritis45%
  8. Mood disorders43%

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

Dr. Allegretti's patients across all payers

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

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women35%
  • Men65%

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

Dr. Andrew S. Allegretti wrote 502 Medicare Part D claims in 2024

In 2024, Dr. Allegretti wrote 502 Medicare Part D claims for 75 patients. 75% of them were for generic drugs. CMS names the drug for 350 of them, across 13 drugs with 11 or more claims each, at $74,475 in total drug cost. In 2023, CMS named 344 claims across 16 drugs.

Part D claims, 2024502
Drugs named by CMS13
Total drug cost$74,475
Part D patients75

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

  • Generic377 claims75%
  • Brand-name and other125 claims25%

Dr. Allegretti'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3442024: 3502%

Drugs named by CMS: 13 in 2024, 16 in 2023.

See all prescribing by Dr. Allegretti

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. Andrew S. Allegretti offers telehealth to Medicare patients

Dr. Allegretti accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Allegretti as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Andrew S. Allegretti has 89 publications on record

Dmand AI links 89 papers to Dr. Allegretti, published from 2013 to 2025. 2024 was the busiest year, with 19. The most frequent topics are Acute Kidney Injury, Liver Cirrhosis and Hepatorenal Syndrome. Dr. Allegretti has published most often in Kidney360. Dr. Allegretti's most frequent co-authors are Kavish Rohit Patidar, DO, Sagar Uday Nigwekar, MD and Giuseppe Cullaro, MD.

Papers89
Years published2013 to 2025

Dr. Allegretti's papers by year, 2016 to 2025

Topics Dr. Allegretti writes about most

  • Acute Kidney Injury
  • Liver Cirrhosis
  • Hepatorenal Syndrome
  • Renal Insufficiency, Chronic
  • Liver Transplantation
  • Glomerular Filtration Rate
  • Terlipressin
  • Vasoconstrictor Agents

Dr. Allegretti's most frequent co-authors

Recent publications by Dr. Allegretti

See all 89 publications and co-authors

See who Dr. Allegretti researches with

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

How network discovery works

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

Dr. Andrew S. Allegretti has worked on 1 clinical trial

Dmand AI links Dr. Allegretti to 1 clinical trial. Conditions studied include Hepatorenal Syndrome and Acute Kidney Injury.

Conditions in Dr. Allegretti's trials

  • Hepatorenal Syndrome
  • Acute Kidney Injury

Investigators on the most trials with Dr. Allegretti

Recent clinical trials with Dr. Allegretti

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Andrew S. Allegretti received $140,066 in industry payments from 2016 to 2025

CMS Open Payments shows 65 general payments to Dr. Allegretti from 5 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $75,200.

General payments to Dr. Allegretti by program year, 2016 to 2025

General payments to Dr. Allegretti by kind, 2016 to 2025

$140.1Kin total
  • Consulting fees$139,483100%
  • Food and beverage$5160%
  • Education$660%

Companies that paid Dr. Allegretti the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Allegretti

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

Sources for Dr. Andrew S. Allegretti'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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
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. Andrew S. Allegretti

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. Andrew S. Allegretti's NPI number?

Dr. Andrew S. Allegretti's NPI number is 1427378991. It was assigned on June 8, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Andrew S. Allegretti?

Dr. Andrew S. Allegretti is a nephrologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Andrew S. Allegretti practice?

Dr. Allegretti practices at 750 Washington St, Boston, MA 02111. Dr. Allegretti's primary practice is Tufts Medical Center in Boston, Massachusetts. Dmand AI also links Dr. Allegretti to 4 hospitals, 2 group practices and clinics, 2 medical groups and 1 dialysis center.

What is Dr. Andrew S. Allegretti's office phone number?

The practice phone on file for Dr. Allegretti is (617) 636-5442.

What is Dr. Andrew S. Allegretti's medical license number?

Dr. Allegretti holds Massachusetts license 251043.

Which hospitals is Dr. Andrew S. Allegretti affiliated with?

Dr. Allegretti is affiliated with Massachusetts General Hospital. Dmand AI links Dr. Allegretti to 4 more hospitals.

What medical group is Dr. Andrew S. Allegretti part of?

Dr. Allegretti is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Allegretti to 2 more medical groups.

Does Dr. Andrew S. Allegretti accept Medicare?

Yes. CMS data shows Dr. Allegretti billed Medicare for 573 services in 2024, and Dr. Allegretti accepts Medicare assignment.

Does Dr. Andrew S. Allegretti offer telehealth?

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

How many Medicare patients does Dr. Andrew S. Allegretti see?

CMS counts 237 Medicare patients who saw Dr. Allegretti in 2024, with an average age of 72.

Show 6 more questionsShow fewer questions

What services does Dr. Andrew S. Allegretti bill to Medicare?

In 2024, Dr. Allegretti's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and hospital inpatient care (99232).

What drugs does Dr. Andrew S. Allegretti prescribe most?

In 2024 Medicare Part D data, Dr. Allegretti's most prescribed drugs by claims were Calcitriol, Furosemide and Amlodipine Besylate.

Has Dr. Andrew S. Allegretti received payments from drug or device companies?

CMS Open Payments shows $140,066 in general payments to Dr. Allegretti from 5 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Andrew S. Allegretti been practicing?

Dr. Allegretti graduated from medical school in 2010, 16 years ago.

Does Dr. Andrew S. Allegretti do research?

Dmand AI links 89 publications to Dr. Allegretti, published from 2013 to 2025. Dr. Allegretti has worked on 1 clinical trial.

Who does Dr. Andrew S. Allegretti publish with?

Dr. Allegretti's most frequent co-authors are Kavish Rohit Patidar, DO (18 shared papers), Sagar Uday Nigwekar, MD (17 shared papers) and Giuseppe Cullaro, MD (16 shared papers).

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