Ilsa Y. Grunder, NP
- Medicare patients, 2024
- 431
- Part D claims, 2024
- 344
- Hospital affiliations
- 1
- Industry payments
- $54
- Medical group
- 1
- Practice address
- 5 Neponset Street, Worcester, MA 01606
- Practice phone
- Call (508) 853-2716
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Reliant Medical Group - Worcester - Neponset Street
Mammography / Breast Imaging Center · Worcester, Massachusetts
Find Ilsa Grunder'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.
Ilsa Y. Grunder is a nurse practitioner in Worcester, Massachusetts
Ilsa Grunder practices at Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts.
Ilsa Grunder's NPI, 1073653507, was assigned on February 7, 2007. Ilsa Grunder holds Massachusetts license 196255.
- NPI
- 1073653507NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648375055
- NPI enumeration date
- February 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (508) 853-2716
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ilsa Y. Grunder practices at Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts
Ilsa Grunder's primary practice is Reliant Medical Group - Worcester - Neponset Street, at 5 Neponset Street, Worcester, MA 01606. The practice phone is (508) 853-2716.
- Reliant Medical Group - Worcester - Neponset Street5 Neponset Street, Worcester, MA 01606Phone(508) 853-2716
Source: Dmand AI Affiliation Data
Ilsa Y. Grunder is affiliated with 2 sites of care and 1 medical group
Ilsa Grunder's primary practice is Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts. Ilsa Grunder is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is Reliant Medical Group. Ilsa Grunder's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ilsa Y. Grunder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ilsa Grunder practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Reliant Medical Group - Worcester - Neponset Street | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Ilsa Y. Grunder is one of 2,511 nurse practitioners in Massachusetts
Nurse practitioner is Ilsa Grunder's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Ilsa Grunder is licensed in Massachusetts.
Specialties and state licenses
- Nurse practitioner, MassachusettsPrimary
Nurse practitioners near Ilsa Grunder
Counts of nurse practitioners 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
Ilsa Y. Grunder treated 431 Medicare patients in 2024, average age 72
CMS counts 431 Medicare patients who saw Ilsa Grunder in 2024. The largest group is 65 to 74, with 184 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 28% are also on Medicaid. Their average risk score is 2.05, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Ilsa Grunder's median patient age at 63, with 60% women.
Ilsa Grunder's Medicare patients by age, 2024
Ilsa Grunder's Medicare patients by sex, 2024
- Women25459%
- Men17741%
Chronic conditions among Ilsa Grunder's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis47%
- Chronic kidney disease37%
- Ischemic heart disease34%
- Anxiety33%
- Mood disorders30%
- Diabetes29%
Share of Medicare patients with each condition. A patient can have several.
Ilsa Grunder's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ilsa Y. Grunder wrote 344 Medicare Part D claims in 2024
In 2024, Ilsa Grunder wrote 344 Medicare Part D claims for 129 patients. 64% of them were for generic drugs.
Ilsa Grunder's Part D claims by kind of drug, 2024
- Generic220 claims64%
- Brand-name124 claims36%
Drug classes CMS tracks in Ilsa Grunder's Part D claims, 2024
- Antibiotics3%11 of 344 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Ilsa Y. Grunder offers telehealth to Medicare patients
Ilsa Grunder accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Ilsa Grunder as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Ilsa Y. Grunder received $54 in industry payments in 2025
CMS Open Payments shows 1 general payment to Ilsa Grunder from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Myriad Genetic Laboratories, Inc. paid the most, $54.
Companies that paid Ilsa Grunder the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Ilsa Y. Grunder'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - 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) |
| 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 Ilsa Y. Grunder
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ilsa Y. Grunder's NPI number?
Ilsa Y. Grunder's NPI number is 1073653507. It was assigned on February 7, 2007, and it is active in the NPI Registry.
What does Ilsa Y. Grunder specialize in?
Ilsa Y. Grunder is a nurse practitioner in Worcester, Massachusetts. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Ilsa Y. Grunder practice?
Ilsa Grunder practices at 5 Neponset Street, Worcester, MA 01606. Ilsa Grunder's primary practice is Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts.
What is Ilsa Y. Grunder's office phone number?
The practice phone on file for Ilsa Grunder is (508) 853-2716.
What is Ilsa Y. Grunder's medical license number?
Ilsa Grunder holds Massachusetts license 196255.
Which hospitals is Ilsa Y. Grunder affiliated with?
Ilsa Grunder is affiliated with UMass Memorial Medical Center - University Campus.
What medical group is Ilsa Y. Grunder part of?
Ilsa Grunder is linked to Reliant Medical Group.
Does Ilsa Y. Grunder accept Medicare?
Yes. CMS lists Ilsa Grunder as accepting Medicare assignment.
Does Ilsa Y. Grunder offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Ilsa Grunder as offering telehealth services.
How many Medicare patients does Ilsa Y. Grunder see?
CMS counts 431 Medicare patients who saw Ilsa Grunder in 2024, with an average age of 72.
Has Ilsa Y. Grunder received payments from drug or device companies?
CMS Open Payments shows $54 in general payments to Ilsa Grunder from 1 company from 2025 to 2025. The largest total came from Myriad Genetic Laboratories, Inc.
How long has Ilsa Y. Grunder been practicing?
Ilsa Grunder graduated from medical school in 2005, 21 years ago.
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