Active NPI 1811182041 Individual Practitioner Male Practitioner

Dr. Jack C Chang , MD

Internal Medicine • Lowell, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Jack Chang, MD is a certified Internal Medicine practicing in Lowell, MA. With approximately 42 years of clinical experience since completing medical education in 1984, Dr. Chang delivers high-quality medical care to the local community at 706 ROGERS ST.

Dr. Chang accepts Medicare assignment.

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, advance care planning, first. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

706 Rogers St

Lowell, MA 018524338

Telephone 9789379333

Fax 9789379992

Associated Practice Facility / Clinic

🏢 Jack Chang Md Pc Facility NPI 1235114216

Medicare Profile & Education

Medical School

Other

Graduation Year

1984

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Lowell, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

42 Yrs +18.2 yrs vs City Avg

City Avg: 23.8 Yrs

State Avg: 29.3 Yrs

Regional Practice Density

63 Specialists

Practicing in Lowell, MA (7127 Statewide)

Telehealth Adoption Rate

31.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

33.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chang (42 Years) 42 Yrs

Lowell Specialty Average (23.8 Years) 23.8 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	149	66	$250.00	$139.80
99213 Established patient office or other outpatient visit, typically 15 minutes	81	51	$180.00	$99.41
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	67	67	$250.00	$141.28
99497 Advance care planning, first 30 minutes	66	64	$60.00	$59.30
G0008 Administration of influenza virus vaccine	30	30	$65.00	$35.30
90662 Influenza vaccine split virus, preservative free	28	28	$105.00	$80.41
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	26	18	$120.00	$62.42
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	21	12	$80.00	$26.43
99496 Transitional care management services for problem of high complexity	11	11	$325.00	$307.72

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	109	58	$250.00	$140.57
99213 Established patient office or other outpatient visit, typically 15 minutes	106	47	$179.43	$99.70
99497 Advance care planning, first 30 minutes	72	67	$60.00	$59.28
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	68	68	$250.00	$141.83
90662 Influenza vaccine split virus, preservative free	44	44	$105.00	$71.62
G0008 Administration of influenza virus vaccine	43	42	$65.00	$31.47
99441 Telephone medical discussion with physician, 5-10 minutes	22	15	$40.00	$39.49
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	22	15	$80.00	$26.59
99496 Transitional care management services for problem of high complexity	20	14	$325.00	$306.18
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	14	$120.00	$63.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	126	64	$165.00	$101.85
99497 Advance care planning, first 30 minutes	86	81	$60.00	$59.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	86	52	$250.00	$143.00
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	82	82	$250.00	$145.87
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	51	30	$120.00	$63.89
G0008 Administration of influenza virus vaccine	46	45	$65.00	$30.84
90662 Influenza vaccine split virus, preservative free	35	35	$105.00	$68.54
99441 Telephone medical discussion with physician, 5-10 minutes	18	12	$40.00	$39.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	213	88	$165.00	$85.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	82	46	$250.00	$125.79
99497 Advance care planning, first 30 minutes	81	78	$60.00	$60.52
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	77	77	$250.00	$151.19
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	40	25	$120.00	$45.33
99441 Telephone medical discussion with physician, 5-10 minutes	34	19	$40.00	$40.47
G0008 Administration of influenza virus vaccine	23	23	$65.00	$17.93
90662 Influenza vaccine split virus, preservative free	19	19	$81.32	$64.81
99442 Telephone medical discussion with physician, 11-20 minutes	14	11	$50.00	$50.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	183	72	$165.00	$72.11
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	140	61	$250.00	$112.66
99497 Advance care planning, first 30 minutes	99	92	$60.00	$60.55
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	94	94	$250.00	$132.60
99442 Telephone medical discussion with physician, 11-20 minutes	46	29	$50.00	$50.55
99441 Telephone medical discussion with physician, 5-10 minutes	41	20	$40.00	$39.63
99443 Telephone medical discussion with physician, 21-30 minutes	33	18	$60.00	$60.70
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	33	27	$120.00	$38.68
G0444 Annual depression screening, 5 to 15 minutes	30	30	$40.00	$20.83
G0008 Administration of influenza virus vaccine	25	23	$64.00	$17.74
90662 Influenza vaccine split virus, preservative free	18	18	$74.44	$60.98

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	134	63	$165.00	$83.25
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	123	67	$250.00	$121.49
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	84	84	$250.00	$130.69
99497 Advance care planning, first 30 minutes	78	75	$60.00	$59.90
G0008 Administration of influenza virus vaccine	45	44	$60.00	$18.54
Q2038 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluzone)	45	44	$50.00	$48.17
93000 Routine ekg using at least 12 leads including interpretation and report	34	33	$100.00	$19.38

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	171	82	$250.00	$119.22
99213 Established patient office or other outpatient visit, typically 15 minutes	96	59	$165.00	$80.93
99497 Advance care planning, first 30 minutes	85	75	$60.00	$59.23
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	78	78	$250.00	$129.54
G0008 Administration of influenza virus vaccine	57	57	$60.00	$21.61
Q2038 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluzone)	56	56	$50.00	$47.36
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	37	37	$150.00	$105.59
G0009 Administration of pneumococcal vaccine	37	37	$45.00	$21.59
82962 Blood glucose (sugar) test performed by hand-held instrument	24	13	$15.00	$3.21
93000 Routine ekg using at least 12 leads including interpretation and report	23	23	$58.70	$19.15
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	16	14	$325.00	$160.18

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	161	74	$250.00	$116.80
99213 Established patient office or other outpatient visit, typically 15 minutes	118	60	$165.00	$79.68
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	73	73	$250.00	$126.21
99497 Advance care planning, first 30 minutes	69	59	$60.00	$59.18
Q2038 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluzone)	63	59	$50.00	$41.39
G0008 Administration of influenza virus vaccine	63	59	$60.00	$26.69
82962 Blood glucose (sugar) test performed by hand-held instrument	57	28	$15.00	$3.15
93000 Routine ekg using at least 12 leads including interpretation and report	28	26	$50.00	$18.70
81002 Urinalysis, manual test	19	14	$15.00	$3.43
G0444 Annual depression screening, 5 to 15 minutes	19	19	$40.00	$19.96
G0447 Face-to-face behavioral counseling for obesity, 15 minutes	17	16	$45.00	$27.40
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	13	$120.00	$48.18
G0009 Administration of pneumococcal vaccine	16	16	$45.00	$26.66
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	15	15	$150.00	$96.87
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	11	$325.00	$156.11

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MA 74694

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

3103391 (MA)

Commercial Insurance / Payer ID Blue Cross Blue Shield

J13158 (MA)

Commercial Insurance / Payer ID Tufts

074694 (MA)

Practice Associates & Co-Workers

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

1 Associated Practitioners

Mary Trahan , MSN, APRN, AGPCNP-BC

Nurse Practitioner - Adult Health

NPI 1053994558

Master of Science in Nursing, Advanced Practice Registered Nurse, AGPCNPBC

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active November 26, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location November 26, 2007

Registered at 706 ROGERS ST, LOWELL, MA 018524338 (Tel: 9789379333)

📍

Updated Business Mailing Address November 26, 2007

Registered at 706 ROGERS ST, LOWELL, MA 018524338 (Tel: 9789379333)

👤

Provider Name / Credentials Updated November 26, 2007

Recorded as JACK CHANG, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 26, 2007

Internal Medicine (License #74694 in MA)

🟢

Initial NPI Registration & Enumeration September 11, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1811182041

Entity Type:

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

Enumeration Date: September 11, 2007

Last Update: November 26, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

706 Rogers St

Lowell, MA 018524338

Phone: 9789379333

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.