Active NPI 1073653507 Individual Practitioner Female Practitioner

Ilsa Y Grunder , NP

Nurse Practitioner • Worcester, MA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Ilsa Grunder, NP is a certified Nurse Practitioner practicing in Worcester, MA. With approximately 21 years of clinical experience since completing medical education in 2005, Ilsa Grunder delivers high-quality medical care to the local community at 55 LAKE AVE N.

Ilsa Grunder is affiliated with Reliant Medical Group Inc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include injection, iron sucrose, 1 mg, injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use), injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

55 Lake Ave N
Department Of Hematology Oncology

Worcester, MA 016550002

Telephone 5088563509

Associated Practice Facility / Clinic

🏢 Umass Memorial Medical Center Facility NPI 1679574933

Medicare Profile & Education

Medical School

Other

Graduation Year

2005

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in Worcester, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

21 Yrs +10.1 yrs vs City Avg

City Avg: 10.9 Yrs

State Avg: 12.5 Yrs

Regional Practice Density

506 Specialists

Practicing in Worcester, MA (3545 Statewide)

Telehealth Adoption Rate

17.6% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

67.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Grunder (21 Years) 21 Yrs

Worcester Specialty Average (10.9 Years) 10.9 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1756 Injection, iron sucrose, 1 mg	16,000	44	$0.79	$0.22
Q0138 Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use)	15,810	22	$0.97	$0.34
J1568 Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg	2,430	12	$77.27	$46.58
J0129 Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)	2,250	11	$107.00	$42.58
J1745 Injection, infliximab, excludes biosimilar, 10 mg	1,940	18	$85.00	$31.40
Q5106 Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units	1,130	11	$18.90	$7.17
J1100 Injection, dexamethasone sodium phosphate, 1 mg	652	33	$0.30	$0.11
J2469 Injection, palonosetron hcl, 25 mcg	390	22	$10.66	$0.85
96375 Injection of additional new drug or substance into vein	285	91	$63.00	$13.31
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	263	147	$215.00	$54.32
J3489 Injection, zoledronic acid, 1 mg	241	48	$14.50	$6.60
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	191	132	$463.00	$153.48
96413 Infusion of chemotherapy into a vein up to 1 hour	153	64	$400.00	$113.47
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	113	32	$67.00	$12.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	99	85	$313.00	$109.34
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	87	39	$62.00	$17.47
J3490 Unclassified drugs	73	42	$5.71	$0.67
J1200 Injection, diphenhydramine hcl, up to 50 mg	69	36	$2.10	$0.80
96374 Injection of drug or substance into a vein for therapy, diagnosis, or prevention	55	41	$155.00	$32.09
J9217 Leuprolide acetate (for depot suspension), 7.5 mg	45	12	$489.08	$177.75
96523 Irrigation of implanted venous access drug delivery device	40	17	$76.94	$22.00
J1720 Injection, hydrocortisone sodium succinate, up to 100 mg	36	17	$31.00	$18.17
99195 Drawing of blood for a medical problem	32	12	$246.00	$84.38
J7040 Infusion, normal saline solution, sterile (500 ml = 1 unit)	32	12	$7.56	$1.31
96415 Administration of chemotherapy into vein, each additional hour	29	15	$83.91	$24.10
96417 Administration of additional new drug or substance into vein, 1 hour or less	27	14	$198.00	$55.63
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	26	17	$90.00	$24.74
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle	18	13	$89.97	$30.93
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	18	18	$551.00	$188.67

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1756 Injection, iron sucrose, 1 mg	18,600	37	$0.79	$0.21
Q0138 Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use)	14,280	20	$1.72	$0.50
J9271 Injection, pembrolizumab, 1 mg	5,800	15	$97.30	$54.14
J1453 Injection, fosaprepitant, 1 mg	3,000	16	$3.98	$0.16
Q5106 Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units	1,828	18	$18.90	$7.76
Q5103 Injection, infliximab-dyyb, biosimilar, (inflectra), 10 mg	1,810	17	$181.68	$21.41
Q5119 Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg	1,760	15	$137.63	$27.75
J1100 Injection, dexamethasone sodium phosphate, 1 mg	832	35	$0.79	$0.12
J2469 Injection, palonosetron hcl, 25 mcg	440	26	$50.26	$1.08
96375 Injection of additional new drug or substance into vein	312	91	$63.00	$13.65
J3489 Injection, zoledronic acid, 1 mg	273	53	$186.87	$7.98
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	265	134	$215.00	$56.74
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	205	138	$440.00	$155.50
96413 Infusion of chemotherapy into a vein up to 1 hour	159	73	$400.00	$116.53
J9045 Injection, carboplatin, 50 mg	159	12	$37.00	$2.41
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	140	42	$67.00	$12.37
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	129	53	$62.00	$17.95
J1200 Injection, diphenhydramine hcl, up to 50 mg	90	39	$3.07	$1.04
J3490 Unclassified drugs	71	41	$8.03	$0.78
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	68	66	$313.00	$108.84
96415 Administration of chemotherapy into vein, each additional hour	60	25	$83.91	$24.91
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	60	26	$90.00	$25.58
99195 Drawing of blood for a medical problem	59	16	$246.00	$86.93
96417 Administration of additional new drug or substance into vein, 1 hour or less	57	27	$198.00	$57.24
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	55	11	$10.88	$5.54
96374 Injection of drug or substance into a vein for therapy, diagnosis, or prevention	49	37	$155.00	$33.07
J7040 Infusion, normal saline solution, sterile (500 ml = 1 unit)	40	15	$7.56	$1.27
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	35	35	$551.00	$190.69
96411 Administration of additional new drug or substance into vein using push technique	31	15	$171.00	$49.12
J1720 Injection, hydrocortisone sodium succinate, up to 100 mg	27	16	$31.00	$17.49
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	23	11	$30.00	$7.61
96360 Infusion into a vein for hydration, 31-60 minutes	18	12	$152.99	$28.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1756 Injection, iron sucrose, 1 mg	14,000	37	$0.79	$0.21
Q0138 Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use)	10,200	15	$4.36	$0.82
J9267 Injection, paclitaxel, 1 mg	4,530	11	$0.79	$0.12
J1453 Injection, fosaprepitant, 1 mg	4,050	15	$3.98	$0.17
Q5119 Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg	2,710	18	$137.63	$45.06
J0129 Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)	2,100	11	$106.79	$43.53
Q5103 Injection, infliximab-dyyb, biosimilar, (inflectra), 10 mg	1,710	20	$181.68	$34.58
Q5106 Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units	1,400	13	$18.90	$8.04
J1100 Injection, dexamethasone sodium phosphate, 1 mg	932	40	$1.20	$0.12
J2469 Injection, palonosetron hcl, 25 mcg	580	33	$50.26	$1.00
J9201 Injection, gemcitabine hydrochloride, not otherwise specified, 200 mg	356	13	$43.11	$3.76
36415 Insertion of needle into vein for collection of blood sample	355	168	$18.00	$2.97
96375 Injection of additional new drug or substance into vein	349	91	$62.88	$14.30
J3489 Injection, zoledronic acid, 1 mg	299	56	$238.58	$7.38
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	271	184	$436.46	$155.57
96413 Infusion of chemotherapy into a vein up to 1 hour	214	82	$400.00	$124.08
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	213	123	$213.22	$61.28
J9045 Injection, carboplatin, 50 mg	169	12	$21.03	$2.82
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	124	49	$61.14	$18.91
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	109	31	$66.80	$12.73
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	102	13	$12.31	$5.66
96415 Administration of chemotherapy into vein, each additional hour	95	31	$83.91	$26.19
J1200 Injection, diphenhydramine hcl, up to 50 mg	85	46	$3.96	$1.15
96374 Injection of drug or substance into a vein for therapy, diagnosis, or prevention	73	52	$155.00	$35.29
96417 Administration of additional new drug or substance into vein, 1 hour or less	66	28	$198.00	$60.19
J3490 Unclassified drugs	65	41	$1.31	$0.72
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	55	27	$89.72	$27.13
J7040 Infusion, normal saline solution, sterile (500 ml = 1 unit)	54	17	$7.56	$1.33
99195 Drawing of blood for a medical problem	39	17	$246.00	$92.55
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	27	11	$30.00	$7.68
J1720 Injection, hydrocortisone sodium succinate, up to 100 mg	22	13	$27.23	$16.81
96360 Infusion into a vein for hydration, 31-60 minutes	20	12	$152.99	$30.80
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	18	18	$551.00	$185.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1756 Injection, iron sucrose, 1 mg	5,200	13	$0.79	$0.23
36415 Insertion of needle into vein for collection of blood sample	407	179	$18.00	$3.00
J1100 Injection, dexamethasone sodium phosphate, 1 mg	288	14	$1.20	$0.13
J2469 Injection, palonosetron hcl, 25 mcg	200	11	$50.26	$1.34
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	128	111	$400.00	$160.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	116	96	$313.00	$114.68
99213 Established patient office or other outpatient visit, typically 15 minutes	71	67	$211.00	$81.40
96375 Injection of additional new drug or substance into vein	70	23	$60.01	$15.25
J3489 Injection, zoledronic acid, 1 mg	69	14	$238.58	$9.83
96413 Infusion of chemotherapy into a vein up to 1 hour	59	35	$400.00	$132.86
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	51	24	$65.00	$12.66
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	41	34	$193.91	$65.92
96374 Injection of drug or substance into a vein for therapy, diagnosis, or prevention	29	16	$155.00	$37.44
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	23	12	$86.21	$28.62
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	22	13	$56.93	$19.89
99195 Drawing of blood for a medical problem	21	12	$246.00	$97.48
96417 Administration of additional new drug or substance into vein, 1 hour or less	20	11	$198.00	$64.35
96415 Administration of chemotherapy into vein, each additional hour	16	11	$83.91	$27.99
J1200 Injection, diphenhydramine hcl, up to 50 mg	14	11	$3.96	$0.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	474	195	$18.00	$2.98
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	203	143	$313.00	$96.29
99213 Established patient office or other outpatient visit, typically 15 minutes	115	99	$211.00	$66.67
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	37	37	$379.00	$130.54
99442 Telephone medical discussion with physician, 11-20 minutes	21	21	$149.00	$66.91
38222 Biopsy and aspiration of bone marrow sample for diagnosis	12	12	$457.00	$158.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	599	218	$18.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	334	200	$313.00	$95.02
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	58	57	$379.00	$129.06
99213 Established patient office or other outpatient visit, typically 15 minutes	21	18	$211.00	$65.93
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$437.00	$145.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	479	210	$18.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	282	181	$298.03	$95.01
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	71	70	$361.00	$128.96
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	69	11	$63.00	$18.41
99213 Established patient office or other outpatient visit, typically 15 minutes	34	33	$201.00	$63.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	403	172	$18.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	288	195	$274.88	$94.00
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	68	68	$361.00	$126.90
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	49	21	$63.00	$22.78
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	34	16	$7.38	$2.52

Medical Specialties & State Licenses

CMS Verified: 2021-06-11

Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License MA 196255

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Hospital & Practice Group Affiliations

Reliant Medical Group Inc

1 Eaton Pl, Worcester, MA 016081232

Phone: 5085565400

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Dr. Hillary Irons , MD

Emergency Medicine

NPI 1003041971

Doctor of Medicine (M.D.)

Eileen Duhamel , NP

Nurse Practitioner

NPI 1003054727

Nurse Practitioner

Ewa Hryniszyn , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003056284

Certified Registered Nurse Anesthetist

Helen Copsey , PA-C

Physician Assistant

NPI 1003066804

Physician Assistant (Certified)

Dr. Adepeju Champion , MD

Internal Medicine

NPI 1003090499

Doctor of Medicine (M.D.)

Sowmya Korapati

Internal Medicine - Hematology & Oncology

NPI 1003108259

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events

📍

Updated Business Mailing Address June 11, 2021

Registered at 5 NEPONSET ST, WORCESTER, MA 016062714 (Tel: 5085565400)

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 55 LAKE AVE N, DEPARTMENT OF HEMATOLOGY ONCOLOGY, WORCESTER, MA 016550002 (Tel: 5088563509)

📍

Updated Business Mailing Address July 08, 2007

Registered at PO BOX 62, TURNPIKE STATION, SHREWSBURY, MA 015450062 (Tel: 5083348815)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as ILSA GRUNDER, NP

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Nurse Practitioner (License #196255 in MA)

🟢

Initial NPI Registration & Enumeration February 07, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1073653507

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: February 07, 2007

Last Update: June 11, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

5 Neponset St

Worcester, MA 016062714

Phone: 5085565400

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.