Active NPI 1417940917 Individual Practitioner Male Practitioner

Dr. John D Nicolas , MD

Internal Medicine • Chicago, IL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. John Nicolas, MD is a certified Internal Medicine practicing in Chicago, IL. With approximately 39 years of clinical experience since graduating from Loyola University Of Chicago, Stritch School Of Medicine in 1987, Dr. Nicolas delivers high-quality medical care to the local community at 259 E ERIE ST.

Dr. Nicolas 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, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

259 E Erie St
Suite 2300

Chicago, IL 606112987

Telephone 3129266000

Fax 3129266332

Associated Practice Facility / Clinic

🏢 Northwestern Medical Faculty Foundation Facility NPI 1376961524

Medicare Profile & Education

Medical School

Loyola University Of Chicago, Stritch School Of Medicine

Graduation Year

1987

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Chicago, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

39 Yrs +17.2 yrs vs City Avg

City Avg: 21.8 Yrs

State Avg: 28.9 Yrs

Regional Practice Density

2969 Specialists

Practicing in Chicago, IL (7544 Statewide)

Telehealth Adoption Rate

12.8% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

52.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Nicolas (39 Years) 39 Yrs

Chicago Specialty Average (21.8 Years) 21.8 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	582	402	$323.00	$135.83
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	302	302	$373.00	$138.90
99213 Established patient office or other outpatient visit, typically 15 minutes	193	148	$219.00	$96.38
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	146	111	$88.00	$17.44
99442 Telephone medical discussion with physician, 11-20 minutes	83	64	$175.00	$95.69
G0008 Administration of influenza virus vaccine	79	78	$57.00	$33.70
90662 Influenza vaccine split virus, preservative free	78	77	$110.00	$80.93
90480 Admn sarscov2 vacc 1 dose	70	69	$88.00	$44.94
91320 Sarscv2 vac 30mcg trs-suc im	70	69	$202.66	$140.98
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	47	45	$434.00	$192.94
99443 Telephone medical discussion with physician, 21-30 minutes	41	39	$250.00	$136.08
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	22	22	$562.00	$176.69
G0009 Administration of pneumococcal vaccine	20	20	$57.00	$33.70
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	20	20	$397.00	$289.78
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	19	19	$452.00	$176.66

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	632	398	$323.00	$135.25
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	309	309	$373.00	$136.97
99213 Established patient office or other outpatient visit, typically 15 minutes	217	169	$219.00	$95.70
99442 Telephone medical discussion with physician, 11-20 minutes	67	56	$175.00	$96.05
G0008 Administration of influenza virus vaccine	60	59	$57.00	$32.32
90662 Influenza vaccine split virus, preservative free	59	58	$110.00	$71.76
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	37	37	$434.00	$190.20
G0009 Administration of pneumococcal vaccine	33	33	$57.00	$32.32
99443 Telephone medical discussion with physician, 21-30 minutes	29	26	$250.00	$134.42
0124A Fee covid-19 vac 13 res	24	24	$70.00	$43.09
91312 Coronavirus vaccine 13	23	23	$0.01	$0.01
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	21	21	$452.00	$176.19
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	15	15	$192.33	$130.80
90670 Pneumococcal vaccine for injection into muscle	13	13	$362.38	$252.83
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	13	13	$562.00	$175.84
93000 Routine ekg using at least 12 leads including interpretation and report	12	12	$140.00	$15.57

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	548	359	$323.00	$135.53
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	192	192	$373.00	$139.72
99213 Established patient office or other outpatient visit, typically 15 minutes	190	152	$219.00	$96.97
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	68	67	$434.00	$194.91
90662 Influenza vaccine split virus, preservative free	55	54	$110.00	$68.24
G0008 Administration of influenza virus vaccine	55	54	$57.00	$31.09
G0009 Administration of pneumococcal vaccine	39	39	$57.00	$31.20
99442 Telephone medical discussion with physician, 11-20 minutes	37	33	$175.00	$97.43
93000 Routine ekg using at least 12 leads including interpretation and report	35	33	$140.00	$15.14
99443 Telephone medical discussion with physician, 21-30 minutes	26	24	$250.00	$137.28
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	24	24	$185.00	$131.36
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	19	19	$562.00	$179.30
90670 Pneumococcal vaccine for injection into muscle	15	15	$343.00	$250.29
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	15	15	$452.00	$179.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	351	202	$323.00	$137.19
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	302	297	$434.00	$194.68
99213 Established patient office or other outpatient visit, typically 15 minutes	250	178	$219.00	$96.69
G0008 Administration of influenza virus vaccine	99	99	$57.00	$17.94
90662 Influenza vaccine split virus, preservative free	94	94	$110.00	$65.26
99442 Telephone medical discussion with physician, 11-20 minutes	82	70	$175.00	$99.26
G0009 Administration of pneumococcal vaccine	50	50	$57.00	$17.92
99443 Telephone medical discussion with physician, 21-30 minutes	35	29	$250.00	$140.30
93000 Routine ekg using at least 12 leads including interpretation and report	32	32	$140.00	$16.16
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	27	27	$181.30	$125.70
90670 Pneumococcal vaccine for injection into muscle	23	23	$343.00	$239.91
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	19	17	$132.00	$60.47
99441 Telephone medical discussion with physician, 5-10 minutes	13	13	$100.00	$60.44

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	303	191	$323.00	$115.78
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	249	244	$434.00	$156.92
99213 Established patient office or other outpatient visit, typically 15 minutes	151	116	$219.00	$80.45
G0008 Administration of influenza virus vaccine	92	88	$57.00	$17.64
90662 Influenza vaccine split virus, preservative free	91	87	$65.00	$60.31
93000 Routine ekg using at least 12 leads including interpretation and report	84	83	$140.00	$18.20
99442 Telephone medical discussion with physician, 11-20 minutes	74	56	$175.00	$81.29
99443 Telephone medical discussion with physician, 21-30 minutes	58	50	$250.00	$117.02
G0009 Administration of pneumococcal vaccine	46	46	$57.00	$17.61
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	29	29	$165.00	$117.72
90670 Pneumococcal vaccine for injection into muscle	17	17	$343.00	$228.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	414	235	$323.00	$114.96
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	293	285	$434.00	$153.35
99213 Established patient office or other outpatient visit, typically 15 minutes	278	187	$219.00	$78.56
G0008 Administration of influenza virus vaccine	91	89	$57.00	$17.33
90662 Influenza vaccine split virus, preservative free	86	84	$62.67	$53.64
G0009 Administration of pneumococcal vaccine	53	53	$57.00	$17.33
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	37	37	$165.00	$110.56
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	20	$132.00	$48.10
90670 Pneumococcal vaccine for injection into muscle	16	16	$343.00	$207.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	413	247	$323.00	$113.17
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	279	271	$434.00	$151.18
99213 Established patient office or other outpatient visit, typically 15 minutes	278	181	$219.00	$75.36
G0008 Administration of influenza virus vaccine	103	101	$57.00	$21.31
90662 Influenza vaccine split virus, preservative free	99	97	$45.00	$44.10
93000 Routine ekg using at least 12 leads including interpretation and report	86	85	$140.00	$18.10
G0009 Administration of pneumococcal vaccine	57	57	$57.00	$21.31
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	31	31	$165.00	$105.59
90670 Pneumococcal vaccine for injection into muscle	26	26	$343.00	$197.72
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	12	$132.00	$46.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	405	224	$323.00	$107.65
99213 Established patient office or other outpatient visit, typically 15 minutes	218	150	$219.00	$73.58
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	198	193	$434.00	$147.90
93000 Routine ekg using at least 12 leads including interpretation and report	166	162	$140.00	$17.50
G0008 Administration of influenza virus vaccine	96	95	$57.00	$26.42
90662 Influenza vaccine split virus, preservative free	92	91	$45.00	$43.93
G0009 Administration of pneumococcal vaccine	64	64	$57.00	$26.42
85610 Blood test, clotting time	48	11	$29.00	$5.28
90670 Pneumococcal vaccine for injection into muscle	42	42	$343.00	$186.36
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	41	41	$562.00	$173.86
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	22	22	$165.00	$94.89
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	17	$132.00	$44.67

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License IL 036077725

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

036077725 (IL)

Commercial Insurance / Payer ID Rr Medicare

110119439 (IL)

Hospital & Practice Group Affiliations

Northwestern Medical Faculty Foundation

675 N Saint Clair St, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

7 Blanchard Cir, Wheaton, IL 601892038

Phone: 6306820500

Northwestern Medical Faculty Foundation

235 S Gary Ave, Bloomingdale, IL 601082213

Phone: 6308939600

Northwestern Medical Faculty Foundation

1135 W Delano Ct, Chicago, IL 606053457

Phone: 3126950665

Northwestern Medical Faculty Foundation

1333 W Belmont Ave, Chicago, IL 606575785

Northwestern Medical Faculty Foundation

675 N St Clair, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

4445 W Irving Park Rd, Chicago, IL 606412808

Northwestern Medical Faculty Foundation

1135 S Delano Ct E, Chicago, IL 606053457

Phone: 6309331500

Northwestern Medical Faculty Foundation

233 S Gary Ave, Bloomingdale, IL 601082213

Phone: 6303584414

Northwestern Medical Faculty Foundation

1630 Sherman Ave, Evanston, IL 602013711

Practice Associates & Co-Workers

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

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Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active May 16, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location May 16, 2016

Registered at 259 E ERIE ST, SUITE 2300, CHICAGO, IL 606112987 (Tel: 3129266000)

📍

Updated Business Mailing Address May 16, 2016

Registered at 259 E ERIE ST, SUITE 2300, CHICAGO, IL 606112987 (Tel: 3129266000)

👤

Provider Name / Credentials Updated May 16, 2016

Recorded as JOHN NICOLAS, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 16, 2016

Internal Medicine (License #036077725 in IL)

🟢

Initial NPI Registration & Enumeration August 30, 2005

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: 1417940917

Entity Type:

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

Enumeration Date: August 30, 2005

Last Update: May 16, 2016

Sole Proprietor: No

Update or Correct Profile

Mailing Address

259 E Erie St, Suite 2300

Chicago, IL 606112987

Phone: 3129266000

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.