Active NPI 1578678272 Individual Practitioner Female Practitioner

Dr. Margaret L Chen , MD

Internal Medicine • Duluth, MN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Margaret Chen, MD is a certified Internal Medicine practicing in Duluth, MN. With approximately 23 years of clinical experience since completing medical education in 2003, Dr. Chen delivers high-quality medical care to the local community at 400 E 3RD ST.

Dr. Chen maintains professional affiliations with St Josephs Medical Center, The Duluth Clinic Ltd and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, critical care, first. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

400 E 3rd St

Duluth, MN 558051951

Telephone 2187868364

Associated Practice Facility / Clinic

🏢 The Duluth Clinic, Ltd Facility NPI 1245278209

Medicare Profile & Education

Medical School

Other

Graduation Year

2003

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Duluth, MN

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

23 Yrs +1.4 yrs vs City Avg

City Avg: 21.6 Yrs

State Avg: 23.6 Yrs

Regional Practice Density

68 Specialists

Practicing in Duluth, MN (2726 Statewide)

Telehealth Adoption Rate

19.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

77.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chen (23 Years) 23 Yrs

Duluth Specialty Average (21.6 Years) 21.6 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	587	149	$456.33	$111.81
99239 Hospital discharge day management, more than 30 minutes	102	99	$444.61	$108.73
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	69	34	$309.70	$74.34
99291 Critical care, first 30-74 minutes	66	29	$887.00	$197.75
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	35	34	$821.00	$159.25
99292 Critical care, each additional 30 minutes	28	16	$443.00	$98.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	600	160	$427.60	$113.94
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	153	60	$299.05	$75.73
99239 Hospital discharge day management, more than 30 minutes	113	113	$439.00	$109.92
99291 Critical care, first 30-74 minutes	77	28	$887.00	$201.88
G0316 Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th	60	29	$140.00	$29.27
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	45	45	$821.00	$166.09
99292 Critical care, each additional 30 minutes	23	14	$443.00	$101.20

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	857	182	$413.62	$98.48
99239 Hospital discharge day management, more than 30 minutes	120	115	$428.85	$101.95
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	98	32	$286.57	$68.81
99291 Critical care, first 30-74 minutes	63	27	$860.33	$208.73
99226 Subsequent observation care, typically 35 minutes per day	54	30	$415.37	$97.64
99356 Prolonged inpatient or observation hospital service, first hour	43	32	$713.00	$87.32
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	30	12	$340.10	$95.99
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	21	21	$809.86	$190.35
99238 Hospital discharge day management, 30 minutes or less	14	14	$290.00	$69.61
99217 Hospital observation care on day of discharge	12	12	$285.67	$69.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,019	209	$397.17	$100.49
99239 Hospital discharge day management, more than 30 minutes	155	148	$411.81	$103.95
99291 Critical care, first 30-74 minutes	109	39	$831.24	$212.26
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	84	36	$277.67	$69.88
99226 Subsequent observation care, typically 35 minutes per day	57	37	$399.95	$100.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	44	13	$332.05	$97.70
99356 Prolonged inpatient or observation hospital service, first hour	43	27	$713.00	$89.30
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	29	29	$768.52	$194.69
99217 Hospital observation care on day of discharge	27	27	$276.85	$70.51
99292 Critical care, each additional 30 minutes	25	13	$412.40	$106.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,321	234	$387.56	$103.03
99239 Hospital discharge day management, more than 30 minutes	190	176	$400.82	$105.75
99291 Critical care, first 30-74 minutes	121	44	$812.86	$217.42
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	98	41	$268.76	$70.70
99356 Prolonged inpatient or observation hospital service, first hour	62	39	$705.55	$91.65
99226 Subsequent observation care, typically 35 minutes per day	45	26	$385.80	$103.14
99292 Critical care, each additional 30 minutes	20	12	$404.00	$109.21
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	20	20	$739.45	$198.29
99217 Hospital observation care on day of discharge	17	17	$267.82	$71.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,350	278	$370.68	$100.84
99239 Hospital discharge day management, more than 30 minutes	214	204	$384.77	$104.80
99356 Prolonged inpatient or observation hospital service, first hour	146	74	$674.60	$89.68
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	119	65	$260.97	$70.65
99291 Critical care, first 30-74 minutes	84	42	$777.00	$214.42
99226 Subsequent observation care, typically 35 minutes per day	31	17	$371.13	$102.08
99292 Critical care, each additional 30 minutes	30	19	$385.97	$107.45
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	29	29	$722.72	$196.41
99217 Hospital observation care on day of discharge	23	23	$255.96	$71.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,266	261	$354.30	$101.66
99239 Hospital discharge day management, more than 30 minutes	199	185	$368.29	$105.75
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	142	61	$248.97	$70.94
99356 Prolonged inpatient or observation hospital service, first hour	129	66	$659.00	$90.28
99291 Critical care, first 30-74 minutes	45	29	$747.78	$215.13
99226 Subsequent observation care, typically 35 minutes per day	34	19	$354.35	$102.62
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	32	32	$687.50	$197.40
99292 Critical care, each additional 30 minutes	27	17	$373.22	$107.70
99217 Hospital observation care on day of discharge	19	19	$245.68	$71.57

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	720	239	$258.09	$99.63
99239 Hospital discharge day management, more than 30 minutes	167	165	$245.12	$101.99
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	163	78	$177.45	$68.98
99291 Critical care, first 30-74 minutes	47	25	$644.11	$211.59
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	42	41	$414.12	$189.93
99356 Prolonged inpatient or observation hospital service, first hour	35	29	$291.20	$88.36
99226 Subsequent observation care, typically 35 minutes per day	26	14	$236.15	$100.49
99292 Critical care, each additional 30 minutes	24	11	$426.75	$107.26
99217 Hospital observation care on day of discharge	20	20	$187.00	$70.01
99220 Hospital observation care, typically 70 minutes	12	12	$384.08	$177.25

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MN 62371

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.

Internal Medicine - Nephrology

NUCC Taxonomy Code: 207RN0300X

State License MN 1578678272

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Hospital & Practice Group Affiliations

St Josephs Medical Center

523 N 3rd St, Brainerd, MN 564013054

Phone: 2188292861

The Duluth Clinic Ltd

1101 9th St N, Virginia, MN 557922329

Phone: 2187410150

Practice Associates & Co-Workers

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

40 Associated Practitioners

Molly Dwyer , APRN, CNP

Nurse Practitioner - Psychiatric/Mental Health

NPI 1003468760

Advanced Practice Registered Nurse, Certified Nurse Practitioner

Dr. Amy Larson , MD

Hospitalist

NPI 1003565292

Doctor of Medicine (M.D.)

Kelsey O'neil , APRN, CNP

Nurse Practitioner - Family

NPI 1003677303

Advanced Practice Registered Nurse, Certified Nurse Practitioner

Annette Barker

Nurse Practitioner - Family

NPI 1003845595

Bruce Derauf

Radiology - Diagnostic Radiology

NPI 1003847385

Nizar Saleh

Internal Medicine - Cardiovascular Disease

NPI 1003857889

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location July 02, 2019

Registered at 400 E 3RD ST, DULUTH, MN 558051951 (Tel: 2187868364)

📍

Updated Business Mailing Address July 02, 2019

Registered at 400 E THIRD ST MSS 6AV-1, DULUTH, MN 558051951 (Tel: 1878683192)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 02, 2019

Internal Medicine (License #62371 in MN)

✅

NPI Profile Active April 12, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location April 12, 2013

Registered at 525 N SANTIAM HWY, LEBANON, OR 973554363 (Tel: 5414517110)

📍

Updated Business Mailing Address April 12, 2013

Registered at 525 N SANTIAM HWY, LEBANON, OR 973554363 (Tel: 5414517110)

👤

Provider Name / Credentials Updated April 12, 2013

Recorded as MARGARET CHEN, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 12, 2013

Internal Medicine (License #MD151269 in OR)

🟢

Initial NPI Registration & Enumeration August 20, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Margaret Chen. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1578678272

Entity Type:

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

Enumeration Date: August 20, 2006

Last Update: July 02, 2019

Sole Proprietor: No

Update or Correct Profile

Mailing Address

400 E Third St Mss 6av-1

Duluth, MN 558051951

Phone: 1878683192

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.