Active NPI 1184881401 Individual Practitioner Male Practitioner

Dr. Christopher P Hogrefe , MD

Emergency Medicine • Chicago, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Christopher Hogrefe, MD is a certified Emergency Medicine practicing in Chicago, IL. With approximately 18 years of clinical experience since graduating from University Of Iowa, Rj & L Carver College Of Medicine in 2008, Dr. Hogrefe delivers high-quality medical care to the local community at 201 E HURON ST.

Dr. Hogrefe is affiliated with Northwestern Medical Faculty Foundation and accepts Medicare assignment.

Frequently performed procedures and clinical services include hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg, injection, triamcinolone acetonide, not otherwise specified, 10 mg, established 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

201 E Huron St
Galter 3-150

Chicago, IL 606113197

Telephone 3129260047

Fax 3129267260

Associated Practice Facility / Clinic

🏢 Edward J. Olinger, M.d., S.c. Facility NPI 1558346890

Medicare Profile & Education

Medical School

University Of Iowa, Rj & L Carver College Of Medicine

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Emergency Medicine in Chicago, IL

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs +4.1 yrs vs City Avg

City Avg: 13.9 Yrs

State Avg: 24.6 Yrs

Regional Practice Density

1335 Specialists

Practicing in Chicago, IL (3389 Statewide)

Telehealth Adoption Rate

1.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

73.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hogrefe (18 Years) 18 Yrs

Chicago Specialty Average (13.9 Years) 13.9 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
J7325 Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg	2,112	30	$57.66	$8.67
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	504	73	$6.00	$0.96
99213 Established patient office or other outpatient visit, typically 15 minutes	157	90	$219.00	$93.45
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	124	67	$323.00	$132.30
20610 Aspiration and/or injection of fluid from large joint	106	65	$523.02	$81.81
99285 Emergency department visit for life threatening or functioning severity	103	101	$848.07	$160.45
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$330.00	$116.49
99284 Emergency department visit with moderate level of medical decision making	45	45	$584.47	$110.56
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance	31	25	$541.00	$104.48
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$505.00	$174.38
99283 Emergency department visit with low level of medical decision making	28	28	$323.21	$62.79
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	22	20	$434.00	$186.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	320	51	$6.00	$1.07
99285 Emergency department visit for life threatening or functioning severity	148	148	$830.22	$163.51
99213 Established patient office or other outpatient visit, typically 15 minutes	130	77	$219.00	$95.60
99284 Emergency department visit with moderate level of medical decision making	78	77	$571.64	$111.57
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	74	56	$323.00	$133.00
20610 Aspiration and/or injection of fluid from large joint	70	43	$495.00	$80.90
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	62	62	$330.00	$119.45
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	47	47	$505.00	$178.31
99283 Emergency department visit with low level of medical decision making	36	36	$317.67	$66.67
99291 Critical care, first 30-74 minutes	20	20	$1270.75	$198.40
36415 Insertion of needle into vein for collection of blood sample	11	11	$20.00	$8.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	154	29	$6.00	$1.13
99285 Emergency department visit for life threatening or functioning severity	132	132	$822.00	$164.90
99284 Emergency department visit with moderate level of medical decision making	52	52	$566.00	$114.59
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	49	49	$330.00	$118.51
99213 Established patient office or other outpatient visit, typically 15 minutes	49	38	$219.00	$94.77
20610 Aspiration and/or injection of fluid from large joint	35	27	$495.00	$78.84
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	30	30	$505.00	$179.10
99291 Critical care, first 30-74 minutes	27	27	$1257.00	$204.10
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	21	$323.00	$135.06
99283 Emergency department visit with low level of medical decision making	24	24	$314.00	$67.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	217	211	$814.70	$169.03
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	105	105	$68.00	$24.17
36415 Insertion of needle into vein for collection of blood sample	102	99	$20.00	$3.00
99284 Emergency department visit with moderate level of medical decision making	63	63	$561.98	$115.14
99213 Established patient office or other outpatient visit, typically 15 minutes	63	62	$219.00	$97.68
99283 Emergency department visit with low level of medical decision making	39	39	$310.31	$68.65
99291 Critical care, first 30-74 minutes	38	37	$1241.87	$208.04
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	31	31	$165.00	$51.31
81003 Automated urinalysis test	24	24	$16.00	$2.25
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$330.00	$120.76
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	20	$323.00	$138.48
87502 Detection test by nucleic acid for multiple types influenza virus	17	17	$231.00	$95.80
G0008 Administration of influenza virus vaccine	14	14	$57.00	$17.94
90662 Influenza vaccine split virus, preservative free	14	14	$110.00	$65.26
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	13	13	$86.00	$16.53
99441 Telephone medical discussion with physician, 5-10 minutes	11	11	$100.00	$60.02
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	11	11	$95.00	$7.20

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	241	238	$798.43	$164.75
36415 Insertion of needle into vein for collection of blood sample	85	82	$20.00	$3.00
99284 Emergency department visit with moderate level of medical decision making	54	53	$549.70	$112.81
99213 Established patient office or other outpatient visit, typically 15 minutes	53	53	$219.00	$80.39
99291 Critical care, first 30-74 minutes	42	42	$1218.86	$212.51
99283 Emergency department visit with low level of medical decision making	31	31	$304.13	$62.38
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$330.00	$115.79
81003 Automated urinalysis test	18	18	$16.00	$2.25

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	251	243	$769.37	$166.97
99284 Emergency department visit with moderate level of medical decision making	89	88	$522.84	$112.20
99291 Critical care, first 30-74 minutes	54	54	$1176.37	$214.31
99283 Emergency department visit with low level of medical decision making	51	50	$299.65	$59.52
99213 Established patient office or other outpatient visit, typically 15 minutes	42	39	$219.00	$79.13
36415 Insertion of needle into vein for collection of blood sample	15	14	$20.00	$2.94
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$330.00	$116.70
71046 X-ray of chest, 2 views	15	15	$104.00	$21.90
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	11	11	$323.00	$115.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	219	217	$614.26	$178.81
99284 Emergency department visit with moderate level of medical decision making	103	103	$411.04	$121.45
99213 Established patient office or other outpatient visit, typically 15 minutes	59	35	$219.00	$76.84
99291 Critical care, first 30-74 minutes	49	49	$891.57	$226.87
99283 Emergency department visit with low level of medical decision making	34	34	$265.56	$62.18
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	21	16	$323.00	$113.12
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	19	11	$132.00	$46.24
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$330.00	$115.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	222	219	$595.89	$181.09
99284 Emergency department visit with moderate level of medical decision making	112	112	$413.63	$120.82
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	50	11	$6.00	$1.80
99283 Emergency department visit with low level of medical decision making	35	34	$249.97	$62.37
99213 Established patient office or other outpatient visit, typically 15 minutes	29	15	$219.00	$76.98
99291 Critical care, first 30-74 minutes	28	28	$862.93	$228.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	11	$323.00	$112.88
20610 Aspiration and/or injection of fluid from large joint	13	11	$414.62	$68.77

Medical Specialties & State Licenses

CMS Verified: 2025-03-27

Emergency Medicine Primary Specialty

NUCC Taxonomy Code: 207P00000X

State License IL 036-135932

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Emergency Medicine

NUCC Taxonomy Code: 207P00000X

State License IA 39124

Emergency Medicine - Sports Medicine

NUCC Taxonomy Code: 207PS0010X

State License IL 036-135932

An emergency physician with special knowledge in sports medicine is responsible for continuous care in the field of sports medicine, not only for the enhancement of health and fitness, but also for the prevention and management of injury and illness. A sports medicine physician has knowledge and experience in the promotion of wellness and the role of exercise in promoting a healthy lifestyle. Knowledge of exercise physiology, biomechanics, nutrition, psychology, physical rehabilitation and epidemiology is essential to the practice of sports medicine.

Hospital & Practice Group Affiliations

Northwestern Medical Faculty Foundation

675 N Saint Clair St, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

675 N St Clair, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

1704 Maple Ave, Evanston, IL 602013134

Secondary Practice Locations

200 Hawkins Dr

Iowa City, IA 522421009

Phone: 3193562233

400 E Polk St

Washington, IA 523531237

Phone: 3196535481

701 W Forevergreen Rd

North Liberty, IA 523179848

Phone: 3193562633

Practice Associates & Co-Workers

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

40 Associated Practitioners

Timothy Doyle , RN, BS

Registered Nurse

NPI 1023295540

Registered Nurse, Bachelor of Science

Dr. Steven Potts , DO

Internal Medicine

NPI 1033196688

Doctor of Osteopathic Medicine (D.O.)

Dr. Jason Mathias , MD

Internal Medicine

NPI 1033373329

Doctor of Medicine (M.D.)

Dr. Brant Bittmann , DDS

Dentist - General Practice

NPI 1053442863

Doctor of Dental Surgery

Dr. Mira Egbaria , DDS

Student in an Organized Health Care Education/Training Program

NPI 1083068910

Doctor of Dental Surgery

Dr. Asim Hameeduddin , MD

Internal Medicine

NPI 1083770648

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active August 19, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location August 19, 2014

Registered at 201 E HURON ST, GALTER 3-150, CHICAGO, IL 606113197 (Tel: 3129260047)

📍

Updated Business Mailing Address August 19, 2014

Registered at 201 E. HURON, GALTER 3-150, CHICAGO, IL 60611 (Tel: 3129260047)

👤

Provider Name / Credentials Updated August 19, 2014

Recorded as CHRISTOPHER HOGREFE, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 19, 2014

Emergency Medicine (License #036-135932 in IL)

🟢

Initial NPI Registration & Enumeration May 22, 2008

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: 1184881401

Entity Type:

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

Enumeration Date: May 22, 2008

Last Update: March 27, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

201 E. Huron, Galter 3-150

Chicago, IL 60611

Phone: 3129260047

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.