Active NPI 1437114907 Individual Practitioner Male Practitioner

Dr. James Benjamin Grossweiner , MD

Dermatology • Naperville, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. James Grossweiner, MD is a certified Dermatology practicing in Naperville, IL. With approximately 41 years of clinical experience since graduating from R Franklin University Of Med & Sci/Chicago Medical School in 1985, Dr. Grossweiner delivers high-quality medical care to the local community at 1220 HOBSON RD STE 116.

Dr. Grossweiner accepts Medicare assignment.

Frequently performed procedures and clinical services include destruction of precancer skin growth, 2-14 growths, established patient outpatient office visit, tangential biopsy of single skin lesion. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1220 Hobson Rd Ste 116

Naperville, IL 605408137

Telephone 6303556660

Fax 6305272856

Associated Practice Facility / Clinic

🏢 Grossweiner & Blaszak, P.c. Facility NPI 1194789990

Medicare Profile & Education

Medical School

R Franklin University Of Med & Sci/chicago Medical School

Graduation Year

1985

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Dermatology in Naperville, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

41 Yrs +19.9 yrs vs City Avg

City Avg: 21.1 Yrs

State Avg: 23.1 Yrs

Regional Practice Density

18 Specialists

Practicing in Naperville, IL (673 Statewide)

Telehealth Adoption Rate

16.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

47.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Grossweiner (41 Years) 41 Yrs

Naperville Specialty Average (21.1 Years) 21.1 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
17003 Destruction of precancer skin growth, 2-14 growths	622	114	$50.00	$7.01
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	402	284	$100.00	$60.25
99213 Established patient office or other outpatient visit, typically 15 minutes	314	230	$125.00	$96.48
11102 Tangential biopsy of single skin lesion	295	236	$175.00	$101.23
17000 Destruction of skin growth	265	189	$175.00	$53.61
11103 Biopsy of related skin growth, each additional growth	181	125	$100.00	$53.62
11104 Punch biopsy, first skin growth	141	125	$180.00	$130.56
17110 Destruction of up to 14 skin growths	56	48	$175.00	$109.76
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	55	52	$460.00	$316.34
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	46	37	$150.00	$136.47
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	42	41	$425.00	$130.79
11105 Punch biopsy, each additional skin growth	19	16	$90.00	$63.88
17004 Destruction of precancer skin growth, 15 or more growths	19	15	$300.00	$179.19
11622 Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm	12	11	$470.00	$135.65
99202 New patient office or other outpatient visit, typically 20 minutes	11	11	$140.00	$76.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	933	145	$50.00	$7.10
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	432	308	$100.00	$59.97
99213 Established patient office or other outpatient visit, typically 15 minutes	381	257	$125.00	$94.94
17000 Destruction of skin growth	352	238	$175.00	$55.10
11102 Tangential biopsy of single skin lesion	321	258	$175.00	$99.47
11103 Biopsy of related skin growth, each additional growth	197	127	$100.00	$54.12
11104 Punch biopsy, first skin growth	133	121	$180.00	$132.09
17110 Destruction of up to 14 skin growths	73	62	$175.00	$117.14
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	67	60	$460.00	$313.51
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	55	45	$425.00	$129.26
99202 New patient office or other outpatient visit, typically 20 minutes	42	42	$140.00	$74.98
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	40	35	$150.00	$134.92
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$150.00	$119.44
17004 Destruction of precancer skin growth, 15 or more growths	34	27	$300.00	$182.16
12034 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm	15	14	$500.00	$361.76
11105 Punch biopsy, each additional skin growth	14	12	$90.00	$64.00
11401 Removal of noncancer skin growth of body, arms, or legs, 0.6-1.0 cm	13	12	$230.00	$104.14
11402 Removal of noncancer skin growth of body, arms, or legs, 1.1-2.0 cm	12	12	$270.00	$108.23
36415 Insertion of needle into vein for collection of blood sample	12	12	$10.00	$8.40
11622 Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm	11	11	$470.00	$135.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	890	136	$50.00	$7.29
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	386	281	$100.00	$60.69
11102 Tangential biopsy of single skin lesion	353	280	$175.00	$104.19
99213 Established patient office or other outpatient visit, typically 15 minutes	342	243	$125.00	$96.80
17000 Destruction of skin growth	338	233	$175.00	$54.48
11103 Biopsy of related skin growth, each additional growth	197	138	$100.00	$55.95
11104 Punch biopsy, first skin growth	128	114	$180.00	$136.74
17110 Destruction of up to 14 skin growths	65	54	$175.00	$110.69
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	65	62	$460.00	$332.20
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	57	49	$425.00	$133.47
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	35	$150.00	$136.42
11105 Punch biopsy, each additional skin growth	30	22	$90.00	$65.29
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	23	23	$150.00	$120.89
17004 Destruction of precancer skin growth, 15 or more growths	23	19	$300.00	$183.85
99202 New patient office or other outpatient visit, typically 20 minutes	21	21	$140.00	$78.65
11401 Removal of noncancer skin growth of body, arms, or legs, 0.6-1.0 cm	14	13	$230.00	$129.01
12034 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm	11	11	$500.00	$352.89
36415 Insertion of needle into vein for collection of blood sample	11	11	$10.00	$2.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	794	145	$30.00	$7.04
11102 Tangential biopsy of single skin lesion	424	312	$175.00	$106.57
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	361	269	$85.00	$60.31
17000 Destruction of skin growth	334	234	$150.00	$50.78
11103 Biopsy of related skin growth, each additional growth	319	181	$100.00	$57.93
99213 Established patient office or other outpatient visit, typically 15 minutes	310	235	$125.00	$97.89
11104 Punch biopsy, first skin growth	96	85	$180.00	$139.03
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	73	59	$150.00	$139.26
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	72	65	$460.00	$334.17
17110 Destruction of up to 14 skin growths	59	50	$175.00	$114.85
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	50	42	$425.00	$138.73
17004 Destruction of precancer skin growth, 15 or more growths	27	23	$255.00	$180.99
11105 Punch biopsy, each additional skin growth	22	20	$90.00	$66.96
11402 Removal of noncancer skin growth of body, arms, or legs, 1.1-2.0 cm	19	18	$270.00	$95.35
11622 Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm	19	18	$470.00	$147.68
11603 Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm	15	14	$460.00	$154.50
12034 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm	15	15	$450.00	$372.22
12042 Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm	13	13	$425.00	$329.34
99202 New patient office or other outpatient visit, typically 20 minutes	12	12	$140.00	$79.00
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$150.00	$121.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	675	126	$26.96	$6.43
99213 Established patient office or other outpatient visit, typically 15 minutes	470	346	$121.97	$80.49
11102 Tangential biopsy of single skin lesion	368	289	$172.15	$102.57
17000 Destruction of skin growth	316	222	$135.78	$50.80
11103 Biopsy of related skin growth, each additional growth	266	160	$97.84	$57.96
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	118	107	$82.46	$49.29
11104 Punch biopsy, first skin growth	98	90	$179.44	$133.86
17110 Destruction of up to 14 skin growths	57	47	$172.81	$116.98
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	48	44	$434.38	$323.93
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	35	30	$399.00	$135.36
11105 Punch biopsy, each additional skin growth	21	18	$90.00	$66.20
17004 Destruction of precancer skin growth, 15 or more growths	18	16	$250.83	$172.13
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	15	14	$150.00	$110.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$144.64	$116.15
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$122.14	$82.48
12034 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm	12	12	$435.83	$355.70
12052 Repair of wound (2.6 to 5.0 centimeters) of face, ears, eyelids, nose, lips, and/or mouth	11	11	$440.91	$319.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	869	170	$30.00	$6.10
99213 Established patient office or other outpatient visit, typically 15 minutes	572	386	$100.00	$77.44
11102 Tangential biopsy of single skin lesion	470	358	$150.00	$97.49
17000 Destruction of skin growth	378	244	$110.00	$49.28
11103 Biopsy of related skin growth, each additional growth	337	177	$75.00	$56.36
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	151	136	$60.00	$47.50
11104 Punch biopsy, first skin growth	127	113	$175.00	$129.81
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	85	79	$378.00	$322.96
17110 Destruction of up to 14 skin growths	68	59	$150.00	$109.00
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	60	50	$390.00	$131.69
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	55	55	$125.00	$114.45
11105 Punch biopsy, each additional skin growth	26	19	$90.00	$65.05
12034 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm	24	23	$365.00	$342.72
17004 Destruction of precancer skin growth, 15 or more growths	23	19	$255.00	$162.40
11622 Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm	23	20	$470.00	$137.99
99202 New patient office or other outpatient visit, typically 20 minutes	22	22	$90.00	$78.59
11603 Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm	21	18	$460.00	$152.57
11401 Removal of noncancer skin growth of body, arms, or legs, 0.6-1.0 cm	21	20	$230.00	$86.97
11402 Removal of noncancer skin growth of body, arms, or legs, 1.1-2.0 cm	18	16	$270.00	$95.62
12042 Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm	16	16	$400.00	$267.86
12052 Repair of wound (2.6 to 5.0 centimeters) of face, ears, eyelids, nose, lips, and/or mouth	16	16	$400.00	$302.53
11642 Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm	15	14	$590.00	$146.13
12035 Repair of wound (12.6 to 20.0 centimeters) of the scalp, underarms, trunk, arms, and/or legs	11	11	$380.00	$343.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	798	157	$30.00	$5.52
11100 Biopsy of single growth of skin and/or tissue	594	420	$120.00	$102.40
99213 Established patient office or other outpatient visit, typically 15 minutes	573	388	$100.00	$74.31
17000 Destruction of skin growth	375	258	$110.00	$49.44
11101 Biopsy of each additional growth of skin and/or tissue	332	196	$85.00	$34.23
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	178	155	$60.00	$45.02
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	97	81	$365.00	$305.18
17110 Destruction of up to 14 skin growths	76	57	$150.00	$112.13
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	62	46	$390.00	$138.13
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$125.00	$109.91
99202 New patient office or other outpatient visit, typically 20 minutes	37	37	$90.00	$77.02
11622 Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm	25	23	$470.00	$139.49
11401 Removal of noncancer skin growth of body, arms, or legs, 0.6-1.0 cm	23	21	$230.00	$88.57
11603 Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm	22	18	$460.00	$149.14
17004 Destruction of precancer skin growth, 15 or more growths	20	17	$255.00	$150.58
11402 Removal of noncancer skin growth of body, arms, or legs, 1.1-2.0 cm	20	17	$270.00	$87.26
11642 Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm	19	16	$590.00	$156.82
12052 Repair of wound (2.6 to 5.0 centimeters) of face, ears, eyelids, nose, lips, and/or mouth	19	17	$400.00	$291.37
12042 Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm	17	17	$400.00	$239.68
12034 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm	15	13	$365.00	$323.79
36415 Insertion of needle into vein for collection of blood sample	11	11	$10.00	$2.94

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	846	174	$30.00	$6.01
11100 Biopsy of single growth of skin and/or tissue	574	413	$120.00	$103.59
99213 Established patient office or other outpatient visit, typically 15 minutes	522	357	$100.00	$76.51
17000 Destruction of skin growth	362	271	$110.00	$51.40
11101 Biopsy of each additional growth of skin and/or tissue	325	203	$85.00	$35.20
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	193	166	$60.00	$45.58
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm	68	61	$365.00	$312.24
17110 Destruction of up to 14 skin growths	62	54	$150.00	$113.09
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm	50	44	$390.00	$136.96
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	49	49	$125.00	$111.08
99202 New patient office or other outpatient visit, typically 20 minutes	31	31	$90.00	$78.99
11603 Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm	29	24	$460.00	$152.28
17004 Destruction of precancer skin growth, 15 or more growths	24	20	$255.00	$160.77
11622 Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm	24	20	$470.00	$149.13
12034 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm	23	22	$365.00	$320.19
11402 Removal of noncancer skin growth of body, arms, or legs, 1.1-2.0 cm	16	15	$270.00	$90.58
11642 Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm	15	15	$590.00	$155.64
12052 Repair of wound (2.6 to 5.0 centimeters) of face, ears, eyelids, nose, lips, and/or mouth	13	13	$400.00	$302.82
12042 Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm	12	12	$400.00	$245.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	11	$120.00	$112.63

Medical Specialties & State Licenses

CMS Verified: 2022-07-18

Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

State License IL 036-074040

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

036074040 (IL)

Commercial Insurance / Payer ID Bcbs

2201677 (IL)

Commercial Insurance / Payer ID Medicare R.r.

070011565 (IL)

Commercial Insurance / Payer ID Uhc

0300111 (IL)

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Wayne Blaszak , MD

Dermatology

NPI 1245294008

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location July 18, 2022

Registered at 1220 HOBSON RD STE 116, NAPERVILLE, IL 605408137 (Tel: 6303556660)

📍

Updated Business Mailing Address July 18, 2022

Registered at 1220 HOBSON RD STE 116, NAPERVILLE, IL 605408137 (Tel: 6303556660)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 18, 2022

Dermatology (License #036-074040 in IL)

✅

NPI Profile Active July 09, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 09, 2007

Registered at 120 SPALDING DR, SUITE 405, NAPERVILLE, IL 605406508 (Tel: 6303556660)

📍

Updated Business Mailing Address July 09, 2007

Registered at 120 SPALDING DR, SUITE 405, NAPERVILLE, IL 605406508 (Tel: 6303556660)

👤

Provider Name / Credentials Updated July 09, 2007

Recorded as JAMES GROSSWEINER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 09, 2007

Dermatology

🟢

Initial NPI Registration & Enumeration April 19, 2006

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: 1437114907

Entity Type:

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

Enumeration Date: April 19, 2006

Last Update: July 18, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1220 Hobson Rd Ste 116

Naperville, IL 605408137

Phone: 6303556660

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

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