What is Maria Delrosario's NPI number?

Maria Delrosario's National Provider Identifier (NPI) is 1609859230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Maria Delrosario's specialty?

Maria Delrosario is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).

Where is Maria Delrosario located?

Maria Delrosario's practice location on file with NPPES is 85 Prescott St, Worcester, MA 01605-2610.

What is Maria Delrosario's phone number?

The practice phone number listed in the NPPES registry for Maria Delrosario is (508) 755-9535.

Does Maria Delrosario accept Medicare?

Maria Delrosario is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Maria Delrosario's NPI active?

Yes — Maria Delrosario's NPI (1609859230) is active in the NPPES registry as of the last update on 2020-11-12.

IndividualActiveAccepts Medicare

Maria Delrosario, M.D.

NPI 1609859230 · Nephrology Physician · Worcester, MA

Maria Delrosario, M.D. is a Nephrology Physician provider in Worcester, MA (NPI 1609859230).

Provider details

NPI number: 1609859230
Entity type: Individual
Primary specialty: Nephrology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: 74885 (MA)

Practice location

85 Prescott St

Worcester, MA 01605-2610

Phone: (508) 755-9535

Street-level locationGet directions

More MA providers

Mailing address

Po Box 415348

Boston, MA 02241-5348

Specialties & taxonomies

Nephrology PhysicianPrimary207RN0300XLicense 74885 (MA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(70/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
20 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
102 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Manual Urinalysis Test With Examination Using Microscope, Non-Automated81000	53	$4
Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215	49	$182

Typical Medicare-allowed amounts for these services range $4–$182 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.

Drug	Part D claims (2024)
Amlodipine Besylate	38
Losartan Potassium	28
Carvedilol	19
Gabapentin	19
Torsemide	17
Sevelamer Carbonate	14
Allopurinol	13
Mupirocin	13
Sucroferric Oxyhydroxidebrand: Velphoro	13
Furosemide	11

These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$469 across 12 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2005-11-29
Last updated: 2020-11-12
Certified: 2020-11-12

Frequently asked questions

What is Maria Delrosario's NPI number?: Maria Delrosario's National Provider Identifier (NPI) is 1609859230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Maria Delrosario's specialty?: Maria Delrosario is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
Where is Maria Delrosario located?: Maria Delrosario's practice location on file with NPPES is 85 Prescott St, Worcester, MA 01605-2610.
What is Maria Delrosario's phone number?: The practice phone number listed in the NPPES registry for Maria Delrosario is (508) 755-9535.
Does Maria Delrosario accept Medicare?: Maria Delrosario is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Maria Delrosario's NPI active?: Yes — Maria Delrosario's NPI (1609859230) is active in the NPPES registry as of the last update on 2020-11-12.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Manual Urinalysis Test With Examination Using Microscope, Non-Automated81000	53	$4
Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215	49	$182

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.

Drug	Part D claims (2024)
Amlodipine Besylate	38
Losartan Potassium	28
Carvedilol	19
Gabapentin	19
Torsemide	17
Sevelamer Carbonate	14
Allopurinol	13
Mupirocin	13
Sucroferric Oxyhydroxidebrand: Velphoro	13
Furosemide	11

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$469 across 12 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments