Active NPI 1013940501 Individual Practitioner Female Practitioner

Dr. Seema Singhal , MD

Internal Medicine - Hematology • Chicago, IL

✓ Accepts Medicare Assignment Telehealth Available

Public Directory Information & Medical Disclaimer

This profile is compiled from official public domain records provided by CMS and the NPPES registry. TRUE-MEDINFO is an independent reference directory and does not provide medical advice, diagnosis, or treatment recommendations. Always consult a licensed medical professional for personal health decisions.

Professional Overview & Biography Verified Profile Summary

Dr. Seema Singhal, MD is a registered Internal Medicine - Hematology practitioner in Chicago, IL. With approximately 35 years of clinical practice since completing medical education in 1991, Dr. Singhal provides healthcare services at the registered practice location at 675 N SAINT CLAIR ST.

Dr. Singhal is affiliated with Northwestern Medical Faculty Foundation and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, telephone medical discussion with physician, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

675 N Saint Clair St
Galter 21-100

Chicago, IL 606115975

Telephone 3126950990

Fax 3126951106

Associated Practice Facility / Clinic

🏢 Northwestern Laser Vision, Llc Facility NPI 1255544995

Medicare Profile & Education

Medical School

Other

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine - Hematology in Chicago, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs +7.7 yrs vs City Avg

City Avg: 27.3 Yrs

State Avg: 21.2 Yrs

Regional Practice Density

31 Specialists

Practicing in Chicago, IL (49 Statewide)

Telehealth Adoption Rate

35.5% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

57.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Singhal (35 Years) 35 Yrs

Chicago Specialty Average (27.3 Years) 27.3 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
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	1,022	195	$434.00	$185.78
99443 Telephone medical discussion with physician, 21-30 minutes	224	112	$250.00	$132.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	204	132	$323.00	$131.37
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	58	58	$625.00	$226.41
99442 Telephone medical discussion with physician, 11-20 minutes	42	42	$175.00	$93.35
36415 Insertion of needle into vein for collection of blood sample	27	20	$20.00	$8.65
99213 Established patient office or other outpatient visit, typically 15 minutes	11	11	$219.00	$93.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J9144 Injection, daratumumab, 10 mg and hyaluronidase-fihj	3,600	16	$170.00	$46.75
J1569 Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg	1,180	15	$134.00	$42.29
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	862	167	$434.00	$185.70
J9041 Injection, bortezomib, 0.1 mg	447	15	$174.00	$7.46
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	196	132	$323.00	$132.85
J2469 Injection, palonosetron hcl, 25 mcg	170	14	$76.00	$1.10
99443 Telephone medical discussion with physician, 21-30 minutes	164	91	$250.00	$132.06
J1100 Injection, dexamethasone sodium phosphate, 1 mg	152	15	$1.00	$0.12
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	74	11	$10.00	$5.67
96375 Injection of additional new drug or substance into vein	49	25	$143.00	$15.82
96413 Infusion of chemotherapy into a vein up to 1 hour	41	38	$940.00	$136.29
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	40	30	$326.00	$75.80
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	39	39	$625.00	$231.37
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	35	16	$129.00	$19.77
99442 Telephone medical discussion with physician, 11-20 minutes	29	27	$175.00	$94.32
36415 Insertion of needle into vein for collection of blood sample	27	20	$20.00	$8.40
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	24	21	$410.00	$64.73
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$219.00	$94.40
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$505.00	$175.28
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	13	11	$203.00	$29.79

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J9144 Injection, daratumumab, 10 mg and hyaluronidase-fihj	6,120	21	$170.00	$45.28
J9263 Injection, oxaliplatin, 0.5 mg	3,836	12	$38.00	$0.07
J1569 Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg	1,510	15	$134.00	$43.36
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	784	169	$434.00	$191.68
J9041 Injection, bortezomib, 0.1 mg	764	20	$174.00	$44.16
J0461 Injection, atropine sulfate, 0.01 mg	680	12	$1.00	$0.08
J1100 Injection, dexamethasone sodium phosphate, 1 mg	482	38	$1.00	$0.12
J2469 Injection, palonosetron hcl, 25 mcg	380	30	$76.00	$0.90
J9190 Injection, fluorouracil, 500 mg	280	23	$7.00	$2.04
99443 Telephone medical discussion with physician, 21-30 minutes	204	119	$250.00	$135.41
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	176	15	$10.00	$5.77
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	139	103	$323.00	$134.12
96375 Injection of additional new drug or substance into vein	104	45	$143.00	$16.79
99358 Prolonged patient service without direct patient contact first hour	94	52	$439.00	$115.99
96413 Infusion of chemotherapy into a vein up to 1 hour	63	52	$940.00	$144.25
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	55	36	$326.00	$81.93
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	53	17	$129.00	$22.30
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	51	35	$88.00	$15.15
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	45	45	$625.00	$237.49
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	43	27	$410.00	$72.56
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	32	20	$203.00	$31.57
G0498 Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community setting (e.g., home, domiciliary, rest home or assisted l	28	21	$1618.00	$269.61
96415 Administration of chemotherapy into vein, each additional hour	28	20	$215.00	$30.45
96411 Administration of additional new drug or substance into vein using push technique	15	12	$393.00	$59.16
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	14	14	$505.00	$179.28
96417 Administration of additional new drug or substance into vein, 1 hour or less	13	11	$464.00	$71.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J9144 Injection, daratumumab, 10 mg and hyaluronidase-fihj	3,780	15	$170.00	$44.94
J0897 Injection, denosumab, 1 mg	1,920	15	$58.00	$20.93
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	913	181	$434.00	$194.29
J9041 Injection, bortezomib, 0.1 mg	547	18	$174.00	$44.85
J1100 Injection, dexamethasone sodium phosphate, 1 mg	366	32	$1.00	$0.15
J2469 Injection, palonosetron hcl, 25 mcg	290	25	$76.00	$1.75
99443 Telephone medical discussion with physician, 21-30 minutes	228	127	$250.00	$140.07
J9190 Injection, fluorouracil, 500 mg	207	18	$7.00	$1.61
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	144	24	$10.00	$5.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	120	84	$323.00	$138.57
99358 Prolonged patient service without direct patient contact first hour	109	66	$439.00	$119.00
96375 Injection of additional new drug or substance into vein	87	44	$143.00	$18.11
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	66	66	$625.00	$237.93
96413 Infusion of chemotherapy into a vein up to 1 hour	62	58	$940.00	$157.81
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	43	31	$203.00	$34.02
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	42	27	$326.00	$87.59
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	41	15	$129.00	$23.51
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	38	33	$88.00	$15.10
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	22	19	$410.00	$78.13
36415 Insertion of needle into vein for collection of blood sample	20	12	$20.00	$3.00
G0498 Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community setting (e.g., home, domiciliary, rest home or assisted l	19	17	$1618.00	$272.88
96415 Administration of chemotherapy into vein, each additional hour	19	15	$215.00	$33.30
96417 Administration of additional new drug or substance into vein, 1 hour or less	15	14	$464.00	$76.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	686	173	$434.00	$155.60
99443 Telephone medical discussion with physician, 21-30 minutes	430	232	$250.00	$117.51
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	101	81	$323.00	$115.67
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	41	41	$625.00	$217.21
96375 Injection of additional new drug or substance into vein	29	15	$143.00	$17.62
96413 Infusion of chemotherapy into a vein up to 1 hour	21	20	$940.00	$152.19
99442 Telephone medical discussion with physician, 11-20 minutes	18	18	$175.00	$81.18
99213 Established patient office or other outpatient visit, typically 15 minutes	12	12	$219.00	$76.98

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1453 Injection, fosaprepitant, 1 mg	4,950	16	$7.00	$2.03
J0897 Injection, denosumab, 1 mg	3,780	20	$58.00	$18.44
J9047 Injection, carfilzomib, 1 mg	1,530	11	$118.00	$35.92
J1569 Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg	1,120	11	$134.00	$41.37
J9041 Injection, bortezomib, 0.1 mg	864	23	$174.00	$44.01
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	625	204	$434.00	$153.34
J2469 Injection, palonosetron hcl, 25 mcg	510	26	$76.00	$12.24
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	393	172	$323.00	$114.29
J1100 Injection, dexamethasone sodium phosphate, 1 mg	368	21	$1.00	$0.11
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	202	23	$10.00	$6.44
99213 Established patient office or other outpatient visit, typically 15 minutes	149	107	$219.00	$79.13
96375 Injection of additional new drug or substance into vein	112	36	$143.00	$17.72
96413 Infusion of chemotherapy into a vein up to 1 hour	92	60	$940.00	$150.07
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	68	32	$203.00	$33.22
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	66	66	$625.00	$214.17
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	50	31	$88.00	$17.66
36415 Insertion of needle into vein for collection of blood sample	48	18	$20.00	$2.94
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	42	17	$129.00	$22.85
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	32	22	$326.00	$84.78
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	26	20	$410.00	$76.27
96415 Administration of chemotherapy into vein, each additional hour	24	15	$215.00	$32.47
96417 Administration of additional new drug or substance into vein, 1 hour or less	20	16	$464.00	$72.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1453 Injection, fosaprepitant, 1 mg	2,100	13	$7.00	$2.06
J9041 Injection, bortezomib, 0.1 mg	884	30	$174.00	$44.09
J1569 Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg	740	11	$134.00	$40.60
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	618	184	$434.00	$151.36
J1100 Injection, dexamethasone sodium phosphate, 1 mg	290	23	$1.00	$0.11
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	253	148	$323.00	$112.27
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	205	107	$56.00	$9.40
80053 Blood test, comprehensive group of blood chemicals	203	109	$76.00	$12.78
J2469 Injection, palonosetron hcl, 25 mcg	201	17	$76.00	$19.13
J9190 Injection, fluorouracil, 500 mg	181	13	$7.00	$1.56
84550 Uric acid level, blood	170	107	$33.00	$5.47
83615 Lactate dehydrogenase (enzyme) level	168	105	$44.00	$7.30
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	124	17	$10.00	$6.26
99213 Established patient office or other outpatient visit, typically 15 minutes	120	81	$219.00	$76.36
J9310 Injection, rituximab, 100 mg	105	11	$2573.00	$865.60
96375 Injection of additional new drug or substance into vein	93	39	$143.00	$18.90
96413 Infusion of chemotherapy into a vein up to 1 hour	86	67	$940.00	$148.37
36415 Insertion of needle into vein for collection of blood sample	74	21	$20.00	$2.94
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	47	47	$629.60	$220.66
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	41	27	$203.00	$33.05
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	41	34	$88.00	$21.41
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	36	29	$326.00	$81.60
96415 Administration of chemotherapy into vein, each additional hour	33	19	$215.00	$32.69
83735 Magnesium level	30	17	$49.00	$8.10
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	27	23	$410.00	$74.65
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	23	12	$129.00	$22.17
G0498 Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community setting (e.g., home, domiciliary, rest home or assisted l	19	12	$1618.00	$256.93
96417 Administration of additional new drug or substance into vein, 1 hour or less	17	13	$464.00	$71.76
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$505.00	$175.02
J2505 Injection, pegfilgrastim, 6 mg	11	11	$8610.00	$4491.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J1453 Injection, fosaprepitant, 1 mg	2,850	17	$7.00	$1.89
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	1,473	239	$56.00	$10.45
J9047 Injection, carfilzomib, 1 mg	1,446	11	$118.00	$31.84
80053 Blood test, comprehensive group of blood chemicals	1,445	237	$76.00	$8.36
36415 Insertion of needle into vein for collection of blood sample	1,235	228	$20.00	$2.94
83615 Lactate dehydrogenase (enzyme) level	1,201	236	$44.00	$4.14
84550 Uric acid level, blood	1,153	237	$33.00	$3.07
J9041 Injection, bortezomib, 0.1 mg	1,037	31	$174.00	$45.91
J1569 Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg	850	12	$134.00	$39.34
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	737	189	$434.00	$150.83
J1100 Injection, dexamethasone sodium phosphate, 1 mg	336	23	$1.00	$0.11
83735 Magnesium level	295	34	$49.00	$9.01
J2405 Injection, ondansetron hydrochloride, per 1 mg	288	13	$2.00	$0.09
J2469 Injection, palonosetron hcl, 25 mcg	250	20	$76.00	$21.81
J9190 Injection, fluorouracil, 500 mg	158	17	$7.00	$1.70
J2930 Injection, methylprednisolone sodium succinate, up to 125 mg	147	22	$10.00	$5.77
J9310 Injection, rituximab, 100 mg	127	11	$2573.00	$817.95
96375 Injection of additional new drug or substance into vein	103	43	$143.00	$23.29
99213 Established patient office or other outpatient visit, typically 15 minutes	98	62	$219.00	$76.59
96413 Infusion of chemotherapy into a vein up to 1 hour	81	58	$940.00	$144.73
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	79	57	$323.00	$113.03
J3489 Injection, zoledronic acid, 1 mg	75	19	$422.00	$13.25
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less	71	42	$203.00	$32.33
96415 Administration of chemotherapy into vein, each additional hour	54	23	$215.00	$29.77
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	53	53	$661.68	$217.54
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	48	36	$326.00	$77.26
96366 Infusion into a vein for therapy, prevention, or diagnosis, each additional hour	45	26	$129.00	$19.57
G9678 Oncology care model (ocm) monthly enhanced oncology services (meos) payment for ocm enhanced services. g9678 payments may only be made to ocm practitioners for ocm beneficiaries for the furnishment of enhanced services as defined in the ocm participation a	41	25	$160.00	$156.80
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	35	31	$410.00	$72.49
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	29	22	$88.00	$26.53
G0498 Chemotherapy administration, intravenous infusion technique; initiation of infusion in the office/clinic setting using office/clinic pump/supplies, with continuation of the infusion in the community setting (e.g., home, domiciliary, rest home or assisted l	20	17	$1618.00	$255.65
96417 Administration of additional new drug or substance into vein, 1 hour or less	17	14	$464.00	$68.47
J1200 Injection, diphenhydramine hcl, up to 50 mg	13	11	$4.00	$0.66

Medical Specialties & State Licenses

Internal Medicine - Hematology Primary Specialty

NUCC Taxonomy Code: 207RH0000X

State License IL 036104212

An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.

Hospital & Practice Group Affiliations

Northwestern Medical Faculty Foundation

1135 S Delano Ct E, Chicago, IL 606053457

Phone: 6309331500

Northwestern Medical Faculty Foundation

1333 W Belmont Ave, Chicago, IL 606575785

Northwestern Medical Faculty Foundation

1000 N Westmoreland Rd, Lake Forest, IL 600451659

Phone: 8475358500

Northwestern Medical Faculty Foundation

350 S Waukegan, Deerfield, IL 600155239

Phone: 3129263107

Northwestern Medical Faculty Foundation

233 S Gary Ave, Bloomingdale, IL 601082213

Phone: 6303584414

Northwestern Medical Faculty Foundation

1000 Westmoreland Rd, Lake Forest, IL 600451659

Phone: 8472345600

Northwestern Medical Faculty Foundation

636 Raymond Dr, Naperville, IL 605639789

Phone: 6304162300

Northwestern Medical Faculty Foundation

4445 W Irving Park Rd, Chicago, IL 606412808

Northwestern Medical Faculty Foundation

675 N St Clair, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

885 Roosevelt Rd, Glen Ellyn, IL 601376141

Northwestern Medical Faculty Foundation

1135 W Delano Ct, Chicago, IL 606053457

Phone: 3126950665

Northwestern Medical Faculty Foundation

1475 E Belvidere Rd, Grayslake, IL 600302012

Northwestern Medical Faculty Foundation

660 N Westmoreland Rd, Lake Forest, IL 600451659

Phone: 8472345600

Northwestern Medical Faculty Foundation

675 N Saint Clair St, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

235 S Gary Ave, Bloomingdale, IL 601082213

Phone: 6308939600

Northwestern Medical Faculty Foundation

350 S Waukegan Rd, Deerfield, IL 600155239

Phone: 3129266146

Northwestern Medical Faculty Foundation

251 E Huron, Chicago, IL 606112908

Northwestern Medical Faculty Foundation

251 E Huron St, Chicago, IL 606112908

Northwestern Medical Faculty Foundation

600 N Westmoreland Rd, Lake Forest, IL 600451659

Phone: 8475359510

Northwestern Medical Faculty Foundation

1630 Sherman Ave, Evanston, IL 602013711

Northwestern Medical Faculty Foundation

1200 N Westmoreland Rd, Lake Forest, IL 600451601

Phone: 8477358500

Practice Associates & Co-Workers

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

40 Associated Practitioners

Hyein Lee

Registered Nurse

NPI 1003739889

Kanithra Sekaran

Hospitalist

NPI 1013596584

Dr. Adam Sonabend Worthalter , MD

Neurological Surgery

NPI 1023261138

Doctor of Medicine (M.D.)

Lauren Knisley , NP

Nurse Practitioner - Family

NPI 1023373479

Nurse Practitioner

Dr. Michael Liu , MD, MPH

Internal Medicine - Hematology & Oncology

NPI 1023677960

Doctor of Medicine (M.D.), Master of Public Health

Melissa Krueger , APRN, CNP

Nurse Practitioner

NPI 1023740487

Advanced Practice Registered Nurse, Certified Nurse Practitioner

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 17, 2009

NPI status registered as active in NPPES database

📍

Updated Practice Location July 17, 2009

Registered at 675 N SAINT CLAIR ST, GALTER 21-100, CHICAGO, IL 606115975 (Tel: 3126950990)

📍

Updated Business Mailing Address July 17, 2009

Registered at 680 N LAKE SHORE DR, SUITE 1000, CHICAGO, IL 606114546 (Tel: 3126959797)

👤

Provider Name / Credentials Updated July 17, 2009

Recorded as SEEMA SINGHAL, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 17, 2009

Internal Medicine (License #036104212 in IL)

🟢

Initial NPI Registration & Enumeration July 08, 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: 1013940501

Entity Type:

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

Enumeration Date: July 08, 2006

Last Update: July 17, 2009

Sole Proprietor: No

Update or Correct Profile

Mailing Address

680 N Lake Shore Dr, Suite 1000

Chicago, IL 606114546

Phone: 3126959797

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.