Active NPI 1639218290 Individual Practitioner Male Practitioner

Dr. Young Chang , MD

Internal Medicine • Tamuning, GU

Professional Overview & Biography Verified Profile Summary

Dr. Young Chang, MD is a certified Internal Medicine practicing in Tamuning, GU. With approximately 40 years of clinical experience since completing medical education in 1986, Dr. Chang delivers high-quality medical care to the local community at 416 CHALAN SAN ANTONIO RD.

Dr. Chang does not directly accept Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, administration of influenza virus vaccine, influenza vaccine, trivalent, 0.5 ml dosage. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

416 Chalan San Antonio Rd
Good Samaritan Clinic

Tamuning, GU 969132635

Telephone 6716462984

Fax 6716464688

Associated Practice Facility / Clinic

🏢 Pacific Echocardio Laboratory Services Inc Facility NPI 1982743803

Medicare Profile & Education

Medical School

Other

Graduation Year

1986

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Tamuning, GU

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

40 Yrs +5.7 yrs vs City Avg

City Avg: 34.3 Yrs

State Avg: 27.1 Yrs

Regional Practice Density

13 Specialists

Practicing in Tamuning, GU (29 Statewide)

Telehealth Adoption Rate

7.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

10.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chang (40 Years) 40 Yrs

Tamuning Specialty Average (34.3 Years) 34.3 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	1,402	377	$136.46	$122.25
99213 Established patient office or other outpatient visit, typically 15 minutes	363	184	$97.17	$86.70
G0008 Administration of influenza virus vaccine	124	118	$28.60	$27.98
90658 Influenza vaccine, trivalent, 0.5 ml dosage	110	110	$23.10	$21.42
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	57	57	$177.46	$161.03
93000 Routine ekg using at least 12 leads including interpretation and report	27	27	$15.45	$13.59
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	22	19	$190.69	$170.05
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	16	16	$0.01	$0.01
G0009 Administration of pneumococcal vaccine	15	15	$27.73	$27.17
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	11	11	$33.97	$21.90

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	1,388	367	$139.05	$126.97
99213 Established patient office or other outpatient visit, typically 15 minutes	458	208	$98.91	$90.03
0124A Fee covid-19 vac 13 res	212	199	$40.00	$39.20
91312 Coronavirus vaccine 13	200	188	$0.01	$0.01
G0008 Administration of influenza virus vaccine	152	140	$28.35	$27.74
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	120	120	$21.89	$20.46
93000 Routine ekg using at least 12 leads including interpretation and report	48	45	$17.99	$14.50
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	47	47	$178.32	$165.01
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	46	42	$32.73	$21.49
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	18	18	$9.54	$9.35
G0009 Administration of pneumococcal vaccine	15	15	$28.38	$27.81
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$120.14	$112.08

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	1,365	369	$138.94	$129.54
99213 Established patient office or other outpatient visit, typically 15 minutes	598	251	$98.20	$91.83
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	180	166	$36.03	$20.98
G0008 Administration of influenza virus vaccine	176	164	$28.32	$27.85
91300 Sarscov2 vac 30mcg/0.3ml im	172	158	$0.24	$0.01
0124A Fee covid-19 vac 13 res	171	171	$40.00	$39.20
91312 Coronavirus vaccine 13	168	168	$0.02	$0.01
0054A Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 30 mcg/0.3ml dosage, tris-sucrose formulation; booster dose	141	140	$40.00	$39.49
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	63	63	$178.41	$168.14
93000 Routine ekg using at least 12 leads including interpretation and report	50	49	$16.97	$14.60
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	19	$60.94	$57.76
0064A Adm sarscov2 50mcg/0.25mlbst	19	19	$40.00	$39.85
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	19	19	$120.14	$113.21
0004A Fee covid-19 vac 1 res	17	17	$40.00	$39.88
91301 Sarscov2 vac 100mcg/0.5ml im	16	16	$0.01	$0.01

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	1,436	365	$138.37	$131.53
99213 Established patient office or other outpatient visit, typically 15 minutes	517	206	$97.96	$92.93
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	143	138	$35.00	$20.50
G0008 Administration of influenza virus vaccine	137	133	$26.45	$18.59
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	75	12	$157.00	$74.87
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	60	60	$178.41	$169.49
93000 Routine ekg using at least 12 leads including interpretation and report	44	43	$16.03	$15.23
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	37	13	$236.00	$107.62
0064A Adm sarscov2 50mcg/0.25mlbst	25	25	$40.00	$40.00
91301 Sarscov2 vac 100mcg/0.5ml im	25	24	$0.01	$0.01
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	12	$192.96	$183.31

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	1,219	316	$117.38	$107.10
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	527	95	$156.23	$75.69
99213 Established patient office or other outpatient visit, typically 15 minutes	453	190	$81.13	$74.05
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	167	57	$235.33	$109.48
99231 Follow-up hospital inpatient care per day, typically 15 minutes	98	38	$90.81	$40.94
G0008 Administration of influenza virus vaccine	98	94	$28.77	$18.31
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	96	93	$35.00	$19.54
99239 Hospital discharge day management, more than 30 minutes	76	71	$253.21	$111.64
99291 Critical care, first 30-74 minutes	62	15	$716.06	$230.10
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	41	41	$175.39	$161.59
99422 Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes	35	32	$32.62	$26.67
99442 Telephone medical discussion with physician, 11-20 minutes	31	24	$88.63	$65.52
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	26	18	$49.29	$45.70
93000 Routine ekg using at least 12 leads including interpretation and report	13	11	$18.57	$16.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$116.06	$109.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,113	327	$79.26	$73.28
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	757	277	$116.48	$106.43
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	204	33	$153.00	$74.89
99231 Follow-up hospital inpatient care per day, typically 15 minutes	189	25	$90.00	$40.40
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	88	66	$47.89	$45.63
G0008 Administration of influenza virus vaccine	66	65	$36.00	$17.96
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	57	57	$35.00	$18.65
93000 Routine ekg using at least 12 leads including interpretation and report	55	50	$18.53	$16.84
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$115.54	$107.42
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	27	13	$229.00	$107.03
99239 Hospital discharge day management, more than 30 minutes	25	24	$247.00	$111.61
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$174.94	$160.94
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	20	20	$417.55	$208.22
Q2035 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (afluria)	17	17	$18.24	$17.88
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$286.25	$140.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,266	349	$78.61	$69.64
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	291	188	$115.48	$102.74
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	115	73	$47.89	$42.74
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	102	22	$76.58	$66.89
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	100	83	$353.75	$191.45
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	95	19	$111.01	$95.83
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	52	52	$115.54	$102.96
99291 Critical care, first 30-74 minutes	33	12	$358.40	$203.61
99238 Hospital discharge day management, 30 minutes or less	29	20	$76.99	$67.87
93000 Routine ekg using at least 12 leads including interpretation and report	27	25	$18.53	$16.34
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$256.37	$129.98

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,169	345	$79.33	$69.47
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	566	243	$115.18	$100.97
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	442	51	$75.34	$66.04
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	367	44	$109.96	$95.04
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	214	177	$354.36	$193.88
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	90	64	$47.53	$42.34
99291 Critical care, first 30-74 minutes	81	23	$349.13	$203.10
99238 Hospital discharge day management, 30 minutes or less	63	50	$76.36	$67.19
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	38	38	$115.67	$102.46
93000 Routine ekg using at least 12 leads including interpretation and report	30	29	$18.57	$16.28
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	25	25	$222.92	$130.52
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$174.28	$154.03

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License GU M1121

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.

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 416 CHALAN SAN ANTONIO RD, GOOD SAMARITAN CLINIC, TAMUNING, GU 969132635 (Tel: 6716462984)

📍

Updated Business Mailing Address July 08, 2007

Registered at PO BOX 6515, TAMUNING, GU 969312635 (Tel: 6716462984)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as YOUNG CHANG, MD

🎓

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

Internal Medicine (License #M1121 in GU)

🟢

Initial NPI Registration & Enumeration February 06, 2007

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: 1639218290

Entity Type:

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

Enumeration Date: February 06, 2007

Last Update: July 08, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 6515

Tamuning, GU 969312635

Phone: 6716462984

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

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