NPPES file of Aug 9, 2026

Maria Bernadette Delrosario, M.D.

Nephrology Physician · Worcester, MA

Maria Bernadette Delrosario, M.D. is a nephrology physician with a practice address in Worcester, Massachusetts, and NPI 1609859230, issued on Nov 29, 2005. Check the license (Massachusetts 74885, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609859230
Name
Maria Bernadette Delrosario
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
74885 MA
Self-reported in NPPES; status is on the state search
Practice location
85 Prescott St, Worcester, MA 01605
Phone
(508) 755-9535
Enumerated
Nov 29, 2005
Record last updated
Nov 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
110052969A MA
Medicare enrollment
Enrolled (PECOS I20050601000922); accepts Medicare assignment
Medical or professional school
Pennsylvania State University College Of Medicine, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 85 Prescott St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Josna Adusumilli, MDSleep Medicine (Psychiatry & Neurology) Physician1568663789
  2. Howard Alfred, M.D.Nephrology Physician1942283627
  3. Steven Davis, M.D.Pulmonary Disease Physician1528041159
  4. Linda Dodge, N.P.Nurse Practitioner1699885772
  5. Wayne Glazier, M.D.Urology Physician1184671877
  6. Catherine Hayes, NPNurse Practitioner1881924744

Verify Maria Bernadette Delrosario in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 74885
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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75% fewer Medicare Part D claims than the average nephrology physician in 2024

364 Medicare Part D claims for 31 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Maria Delrosario364
  2. Specialty average1,465

Most prescribed

  1. Amlodipine Besylate38 claims
  2. Losartan Potassium28 claims
  3. Carvedilol19 claims
  4. Gabapentin19 claims
  5. Torsemide17 claims
  6. Sevelamer Carbonate14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 97 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $469.45

12 payments; by number, the most common kind was food and beverage; the largest payer was Nxstage Medical, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maria Delrosario$469.45
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Umass Memorial Medical Group IncWorcester, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Maria Bernadette Delrosario among 417 nephrology physician records in Massachusetts

Maria Bernadette Delrosario, M.D. is one of 417 nephrology physician records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1988 · median 2001 among the 295 with a school on file
  • Record last updated2020 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Massachusetts

There are 417 nephrology physician records in Massachusetts.

The 8 nephrology physician records with the nearest ZIP codes

  1. Howard Alfred, M.D.Worcester, MA 016051942283627
  2. Katarina Illanes, M.D.Worcester, MA 016051912049677
  3. Rohit Vakil, M.D.Worcester, MA 016041720062920
  4. Robert Black, MDWorcestor, MA 016081689626913
  5. Felipe Fernandez Del Castillo, M.D.Worcester, MA 016081740639681
  6. Nishanth Girija Kumar, M.D.Worcester, MA 016081548643752
  7. Neeraj Jain, M.DWorcester, MA 016081144425539
  8. Sonia Kamath, M.D.Worcester, MA 016081851347736

Common questions

What is Maria Bernadette Delrosario, M.D.'s NPI number?

Maria Bernadette Delrosario, M.D.'s National Provider Identifier (NPI) is 1609859230, issued on Nov 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Maria Bernadette Delrosario, M.D. located?

The NPPES record lists a practice address at 85 Prescott St, Worcester, MA, 01605. Phone: (508) 755-9535. Providers update this record themselves, so call before visiting.

How can I verify Maria Bernadette Delrosario, M.D.'s license?

NPPES lists Massachusetts license number 74885, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Maria Bernadette Delrosario, M.D. prescribe under Medicare Part D?

In 2024, Maria Bernadette Delrosario, M.D. had 364 Medicare Part D claims for 31 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Maria Bernadette Delrosario, M.D.'s MIPS final score?

The 2023 MIPS final score is 97 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.