Active NPI 1922079342 Individual Practitioner Female Practitioner

Dr. Claudia Un-Yong Chae , MD

Internal Medicine • Boston, MA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Claudia Chae, MD is a certified Internal Medicine practicing in Boston, MA. With approximately 36 years of clinical experience since graduating from Columbia University College Of Physicians And Surgeons in 1990, Dr. Chae delivers high-quality medical care to the local community at 55 FRUIT ST.

Dr. Chae is affiliated with Massachusetts General Physicians Organization Inc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, routine ekg using at least 12 leads including interpretation and report, 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

55 Fruit St
Yaw 5 Cardiac Unit Associates

Boston, MA 021142696

Telephone 6177249474

Fax 6177261209

Associated Practice Facility / Clinic

🏢 Massachusetts General Hospital Facility NPI 1184613721

Medicare Profile & Education

Medical School

Columbia University College Of Physicians And Surgeons

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Boston, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

36 Yrs +18.6 yrs vs City Avg

City Avg: 17.4 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

2379 Specialists

Practicing in Boston, MA (7127 Statewide)

Telehealth Adoption Rate

24.8% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

76.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chae (36 Years) 36 Yrs

Boston Specialty Average (17.4 Years) 17.4 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
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	1,282	1,004	$34.56	$8.40
93000 Routine ekg using at least 12 leads including interpretation and report	491	378	$98.00	$15.70
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	297	240	$775.82	$195.23
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	191	64	$498.65	$123.64
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	148	137	$556.17	$138.36
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	81	79	$34.19	$8.41
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	55	55	$805.00	$180.21
99239 Hospital discharge day management, more than 30 minutes	54	54	$484.17	$120.57
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	47	28	$330.11	$81.97
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	31	31	$70.00	$17.34
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	17	17	$1005.88	$238.32
99443 Telephone medical discussion with physician, 21-30 minutes	15	14	$550.67	$131.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	1,371	1,116	$34.00	$8.61
93000 Routine ekg using at least 12 leads including interpretation and report	546	421	$93.48	$16.10
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	324	246	$762.98	$195.52
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	168	57	$439.63	$124.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	160	153	$544.19	$139.37
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	106	54	$300.19	$84.09
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	87	87	$34.00	$8.62
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	55	54	$805.00	$181.42
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	32	32	$987.44	$239.55
99239 Hospital discharge day management, more than 30 minutes	17	17	$446.71	$122.66
99443 Telephone medical discussion with physician, 21-30 minutes	14	12	$544.14	$139.95
99285 Emergency department visit for life threatening or functioning severity	12	12	$716.33	$183.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	1,663	1,289	$34.79	$8.87
93000 Routine ekg using at least 12 leads including interpretation and report	570	421	$92.00	$16.15
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	346	263	$745.38	$198.09
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	261	98	$409.48	$109.68
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	164	164	$34.79	$8.84
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	155	144	$532.71	$142.76
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	93	53	$284.58	$76.29
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	76	76	$793.63	$212.12
99239 Hospital discharge day management, more than 30 minutes	36	36	$425.25	$113.81
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	35	35	$911.43	$244.80
99443 Telephone medical discussion with physician, 21-30 minutes	12	12	$535.33	$142.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	1,941	1,527	$35.00	$9.03
93000 Routine ekg using at least 12 leads including interpretation and report	537	416	$88.50	$16.85
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	235	185	$647.97	$200.45
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	235	74	$422.86	$111.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	189	174	$483.57	$145.30
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	181	179	$35.00	$8.99
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	73	44	$294.34	$77.74
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	58	57	$820.03	$216.68
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	48	48	$866.69	$247.20
99443 Telephone medical discussion with physician, 21-30 minutes	33	28	$466.67	$146.04
99239 Hospital discharge day management, more than 30 minutes	29	29	$436.48	$116.18
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	24	19	$139.54	$36.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	2,425	1,812	$34.23	$9.38
93000 Routine ekg using at least 12 leads including interpretation and report	327	264	$87.00	$19.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	231	193	$449.43	$122.35
99443 Telephone medical discussion with physician, 21-30 minutes	193	153	$447.49	$123.56
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	160	70	$416.81	$115.00
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	159	156	$34.19	$9.35
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	150	58	$291.48	$79.77
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	48	48	$810.83	$223.84
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	34	30	$600.35	$165.05
36415 Insertion of needle into vein for collection of blood sample	28	26	$24.00	$3.00
99442 Telephone medical discussion with physician, 11-20 minutes	26	22	$307.31	$85.45
99239 Hospital discharge day management, more than 30 minutes	25	25	$432.96	$118.87
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	13	$547.00	$151.98
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$672.17	$185.09

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	3,103	2,442	$33.20	$9.21
93000 Routine ekg using at least 12 leads including interpretation and report	515	366	$87.00	$19.31
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	423	134	$286.60	$79.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	417	296	$435.79	$120.84
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	337	330	$33.20	$9.17
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	44	25	$412.73	$113.06
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	36	35	$801.25	$220.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	33	33	$659.97	$179.85
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	29	29	$587.34	$162.02
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	28	28	$541.57	$148.97
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	17	17	$823.82	$228.90
99238 Hospital discharge day management, 30 minutes or less	16	16	$289.75	$80.18

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	2,318	1,900	$32.26	$9.10
93000 Routine ekg using at least 12 leads including interpretation and report	485	347	$87.00	$19.07
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	424	313	$426.72	$118.79
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	385	115	$278.43	$78.43
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	288	280	$32.30	$9.11
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	46	46	$528.22	$147.30
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	40	34	$572.50	$159.75
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	29	19	$399.34	$112.27
99238 Hospital discharge day management, 30 minutes or less	18	18	$281.00	$79.46
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	16	16	$779.50	$218.56
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$647.15	$180.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	3,098	2,479	$34.27	$8.93
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	458	132	$270.96	$76.14
93000 Routine ekg using at least 12 leads including interpretation and report	431	317	$87.00	$18.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	340	253	$416.44	$115.72
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	272	272	$34.32	$8.93
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	52	52	$512.62	$144.17
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	34	31	$559.44	$156.31
99238 Hospital discharge day management, 30 minutes or less	31	31	$278.87	$77.23
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	27	18	$391.67	$110.04
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	21	21	$764.71	$213.75
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	16	16	$628.13	$176.35
99217 Hospital observation care on day of discharge	11	11	$279.09	$77.53

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 77401

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 - Cardiovascular Disease

NUCC Taxonomy Code: 207RC0000X

State License MA 77401

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

3109534 (MA)

Commercial Insurance / Payer ID Tufts Health Plan

734546 (MA)

Commercial Insurance / Payer ID Bcbs Ma

J13961 (MA)

Hospital & Practice Group Affiliations

Massachusetts General Physicians Organization Inc

388 Commonwealth Ave, Boston, MA 022152800

Phone: 6172677171

Massachusetts General Physicians Organization Inc

50 Staniford St, Boston, MA 021142517

Massachusetts General Physicians Organization Inc

115 Mill St, Belmont, MA 024781064

Phone: 6176430003

Massachusetts General Physicians Organization Inc

102 Endicott St, Danvers, MA 019233623

Phone: 9788826100

Massachusetts General Physicians Organization Inc

440 Foley St, Somerville, MA 021451213

Phone: 8572820777

Massachusetts General Physicians Organization Inc

19 Norwood St, Everett, MA 021492709

Phone: 6173947500

Massachusetts General Physicians Organization Inc

151 Everett Ave, Chelsea, MA 021501812

Phone: 6178848300

Massachusetts General Physicians Organization Inc

385 Broadway, Revere, MA 021513033

Phone: 6172677171

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

Massachusetts General Physicians Organization Inc

300 Ocean Ave, Revere, MA 021513675

Phone: 7814856300

Massachusetts General Physicians Organization Inc

25 New Chardon St, Boston, MA 021144774

Phone: 6177261843

Practice Associates & Co-Workers

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

3 Associated Practitioners

Kristen Carter , FNP

Nurse Practitioner - Family

NPI 1083273593

Family Nurse Practitioner

Katelyn Bufe , NP

Nurse Practitioner - Acute Care

NPI 1295142883

Nurse Practitioner

Patricia Williams , APRN, AGNP

Nurse Practitioner - Adult Health

NPI 1790223691

Advanced Practice Registered Nurse, Adult-Gerontology 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 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 55 FRUIT ST, YAW 5 CARDIAC UNIT ASSOCIATES, BOSTON, MA 021142696 (Tel: 6177249474)

📍

Updated Business Mailing Address July 08, 2007

Registered at PO BOX 9142, MASS GENERAL PHYSICIAN ORGANIZATION, CHARLESTOWN, MA 021299142 (Tel: 6177240287)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as CLAUDIA CHAE, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (License #77401 in MA)

🟢

Initial NPI Registration & Enumeration February 01, 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: 1922079342

Entity Type:

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

Enumeration Date: February 01, 2006

Last Update: July 13, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 9142, Mass General Physician Organization

Charlestown, MA 021299142

Phone: 6177240287

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.