Active NPI 1902888662 Individual Practitioner Male Practitioner

Dr. Warren Jeffrey Chang , MD

Ophthalmology • Bloomington, IN

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Warren Chang, MD is a certified Ophthalmology practicing in Bloomington, IN. With approximately 34 years of clinical experience since graduating from Harvard Medical School in 1992, Dr. Chang delivers high-quality medical care to the local community at 1011 W 2ND ST.

Dr. Chang is affiliated with Integ Health System Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, onabotulinumtoxina, 1 unit, injection, aflibercept hd, 1 mg, injection, aflibercept, 1 mg. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1011 W 2nd St

Bloomington, IN 474032216

Telephone 8123341213

Fax 8123335039

Associated Practice Facility / Clinic

🏢 Integ Health System, P.c. Facility NPI 1215919105

Medicare Profile & Education

Medical School

Harvard Medical School

Graduation Year

1992

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Bloomington, IN

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

34 Yrs +8.2 yrs vs City Avg

City Avg: 25.8 Yrs

State Avg: 27.7 Yrs

Regional Practice Density

6 Specialists

Practicing in Bloomington, IN (339 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

46.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chang (34 Years) 34 Yrs

Bloomington Specialty Average (25.8 Years) 25.8 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
J0585 Injection, onabotulinumtoxina, 1 unit	6,800	21	$12.16	$6.26
J0177 Injection, aflibercept hd, 1 mg	2,136	66	$674.16	$330.58
J0178 Injection, aflibercept, 1 mg	750	91	$1585.64	$828.12
92136 Measurement of corneal curvature and depth of eye	732	397	$76.33	$36.99
67028 Injection of drug into eye	707	134	$237.14	$109.18
66984 Removal of cataract with insertion of lens	700	382	$1050.99	$452.18
92134 Imaging of retina	525	200	$77.18	$37.71
66821 Removal of recurring cataract in lens capsule using a laser	314	221	$568.75	$266.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	284	227	$234.72	$120.22
99213 Established patient office or other outpatient visit, typically 15 minutes	259	213	$152.34	$85.22
92014 Established patient complete exam of visual system	211	172	$237.34	$118.19
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	142	124	$102.91	$52.95
92081 Exam of visual field with limited testing	124	98	$60.49	$30.95
92083 Exam of visual field with extended testing	100	100	$115.95	$59.15
92133 Imaging of optic nerve	99	97	$70.18	$33.79
64612 Injection of chemical for paralysis of nerve muscles on side of face	68	21	$309.46	$149.00
J3490 Unclassified drugs	59	36	$3266.78	$2595.46
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	39	39	$304.92	$157.10
66982 Complex removal of cataract with insertion of prosthetic lens	29	19	$1385.84	$626.87
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$203.93	$98.22
67904 Repair of tendon of upper eyelid	22	22	$1745.81	$799.24
65855 Laser repair to improve eye fluid flow	19	14	$432.31	$188.45
11440 Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less	19	17	$262.50	$126.47
99202 New patient office or other outpatient visit, typically 20 minutes	17	17	$135.18	$67.60
15823 Removal of excessive skin and fat of upper eyelid	16	16	$1649.02	$723.59
92250 Photography of the retina	15	15	$74.29	$34.10
92004 New patient complete exam of visual system	13	13	$281.05	$140.73
67924 Extensive repair of turning-inward eyelid defect	11	11	$1002.32	$501.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0585 Injection, onabotulinumtoxina, 1 unit	7,400	23	$7.25	$6.18
J0178 Injection, aflibercept, 1 mg	1,414	124	$1150.00	$867.96
92136 Measurement of corneal curvature and depth of eye	756	409	$100.86	$36.93
66984 Removal of cataract with insertion of lens	728	400	$1500.00	$450.90
67028 Injection of drug into eye	711	134	$380.66	$109.50
92134 Imaging of retina	524	199	$92.00	$38.07
99213 Established patient office or other outpatient visit, typically 15 minutes	523	385	$110.00	$85.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	348	277	$155.00	$120.36
66821 Removal of recurring cataract in lens capsule using a laser	214	148	$400.00	$267.27
92081 Exam of visual field with limited testing	157	124	$50.00	$30.44
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	134	119	$68.00	$52.62
92083 Exam of visual field with extended testing	119	118	$98.00	$58.74
92133 Imaging of optic nerve	107	104	$92.00	$33.98
64612 Injection of chemical for paralysis of nerve muscles on side of face	74	23	$414.32	$151.96
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	58	58	$200.00	$157.24
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	44	44	$150.00	$105.32
65855 Laser repair to improve eye fluid flow	36	21	$587.89	$195.23
99202 New patient office or other outpatient visit, typically 20 minutes	35	35	$95.00	$68.12
11440 Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less	32	24	$222.00	$118.03
66982 Complex removal of cataract with insertion of prosthetic lens	20	15	$1500.00	$613.31
67904 Repair of tendon of upper eyelid	15	15	$2400.00	$833.75
68801 Dilation of tear drainage opening	12	11	$256.00	$99.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0585 Injection, onabotulinumtoxina, 1 unit	6,300	20	$6.64	$6.14
J0178 Injection, aflibercept, 1 mg	1,376	124	$1150.00	$899.35
92136 Measurement of corneal curvature and depth of eye	909	466	$61.09	$28.78
66984 Removal of cataract with insertion of lens	799	447	$1500.00	$449.88
67028 Injection of drug into eye	690	133	$380.02	$109.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	623	429	$155.00	$121.84
92134 Imaging of retina	482	195	$92.00	$38.03
99213 Established patient office or other outpatient visit, typically 15 minutes	389	305	$110.00	$85.53
66821 Removal of recurring cataract in lens capsule using a laser	319	225	$400.00	$266.69
92083 Exam of visual field with extended testing	149	143	$98.00	$58.52
92133 Imaging of optic nerve	109	107	$92.00	$34.55
92081 Exam of visual field with limited testing	100	87	$50.00	$31.00
64612 Injection of chemical for paralysis of nerve muscles on side of face	64	20	$424.31	$154.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	61	61	$200.00	$158.59
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	53	53	$68.00	$53.22
65855 Laser repair to improve eye fluid flow	41	25	$572.00	$190.88
11440 Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less	38	33	$222.00	$126.88
66982 Complex removal of cataract with insertion of prosthetic lens	33	22	$1500.00	$642.38
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	29	29	$150.00	$105.68
67904 Repair of tendon of upper eyelid	17	17	$2117.65	$768.61
15823 Removal of excessive skin and fat of upper eyelid	14	14	$2142.86	$667.82

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0585 Injection, onabotulinumtoxina, 1 unit	6,100	18	$6.16	$6.03
J0178 Injection, aflibercept, 1 mg	1,346	138	$1150.00	$912.66
92136 Measurement of corneal curvature and depth of eye	993	499	$58.66	$29.04
66984 Removal of cataract with insertion of lens	867	478	$1500.00	$464.32
67028 Injection of drug into eye	685	148	$376.81	$110.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	514	401	$149.93	$122.77
92134 Imaging of retina	510	217	$92.00	$38.84
99213 Established patient office or other outpatient visit, typically 15 minutes	487	367	$105.04	$85.16
66821 Removal of recurring cataract in lens capsule using a laser	345	239	$400.00	$270.40
92083 Exam of visual field with extended testing	125	120	$98.00	$59.45
92133 Imaging of optic nerve	123	120	$92.00	$35.06
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	120	98	$63.67	$52.42
92081 Exam of visual field with limited testing	111	99	$50.00	$31.89
64612 Injection of chemical for paralysis of nerve muscles on side of face	61	18	$411.67	$153.05
11440 Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less	53	41	$222.00	$120.07
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	52	52	$199.33	$160.42
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	33	33	$150.00	$106.80
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	31	16	$756.00	$224.40
67904 Repair of tendon of upper eyelid	30	30	$2240.00	$810.44
0191T Internal insertion of eye fluid drainage device	27	15	$2000.00	$639.78
0376T Insertion of eye drainage device	24	13	$1200.00	$319.89
99202 New patient office or other outpatient visit, typically 20 minutes	22	22	$95.00	$69.19
66982 Complex removal of cataract with insertion of prosthetic lens	18	15	$1500.00	$670.69
15823 Removal of excessive skin and fat of upper eyelid	17	17	$2258.82	$755.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0585 Injection, onabotulinumtoxina, 1 unit	5,200	16	$6.00	$5.97
J0178 Injection, aflibercept, 1 mg	1,386	166	$1150.00	$927.29
92136 Measurement of corneal curvature and depth of eye	970	437	$62.33	$30.07
66984 Removal of cataract with insertion of lens	728	422	$1500.00	$468.29
67028 Injection of drug into eye	715	176	$370.52	$99.21
92134 Imaging of retina	492	215	$92.00	$39.14
92014 Established patient complete exam of visual system	413	319	$125.00	$121.43
99213 Established patient office or other outpatient visit, typically 15 minutes	402	339	$75.00	$71.10
66821 Removal of recurring cataract in lens capsule using a laser	290	205	$401.38	$279.70
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	120	116	$115.00	$103.24
92133 Imaging of optic nerve	113	112	$92.00	$35.52
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	112	86	$48.00	$43.05
92083 Exam of visual field with extended testing	110	109	$98.00	$60.29
92081 Exam of visual field with limited testing	106	89	$50.00	$31.28
64612 Injection of chemical for paralysis of nerve muscles on side of face	52	16	$381.85	$145.79
99202 New patient office or other outpatient visit, typically 20 minutes	49	49	$95.00	$72.19
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	40	40	$150.00	$100.75
11440 Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less	39	31	$222.00	$115.75
66982 Complex removal of cataract with insertion of prosthetic lens	29	27	$1500.00	$664.19
0191T Internal insertion of eye fluid drainage device	22	12	$2000.00	$611.81
0376T Insertion of eye drainage device	22	12	$1200.00	$305.91
65855 Laser repair to improve eye fluid flow	19	12	$572.00	$237.24
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	18	11	$756.00	$226.02
67904 Repair of tendon of upper eyelid	17	17	$2258.82	$829.65
67800 Removal of eyelid growth	16	14	$214.00	$123.48
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$193.00	$157.32
92235 Exam of retinal blood vessels using a special camera after injection of a dye	14	14	$209.50	$77.78
15823 Removal of excessive skin and fat of upper eyelid	12	12	$2300.00	$711.67
67924 Extensive repair of turning-inward eyelid defect	12	12	$1722.00	$458.39
92250 Photography of the retina	11	11	$143.00	$39.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0585 Injection, onabotulinumtoxina, 1 unit	5,400	16	$6.00	$5.91
J0178 Injection, aflibercept, 1 mg	1,698	194	$1150.00	$934.40
92136 Measurement of corneal curvature and depth of eye	1,579	647	$64.72	$32.14
66984 Removal of cataract with insertion of lens	1,126	626	$1500.00	$546.51
67028 Injection of drug into eye	914	208	$365.05	$97.85
99213 Established patient office or other outpatient visit, typically 15 minutes	732	535	$75.00	$70.53
92134 Imaging of retina	608	265	$92.00	$39.10
66821 Removal of recurring cataract in lens capsule using a laser	378	258	$400.00	$278.47
92014 Established patient complete exam of visual system	357	297	$125.00	$120.77
92133 Imaging of optic nerve	168	164	$92.00	$35.20
92083 Exam of visual field with extended testing	167	165	$98.00	$60.92
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	152	146	$115.00	$102.70
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	114	95	$48.00	$42.64
92081 Exam of visual field with limited testing	108	87	$50.00	$32.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	66	66	$150.00	$102.33
64612 Injection of chemical for paralysis of nerve muscles on side of face	54	16	$378.52	$143.51
J3590 Unclassified biologics	53	16	$96.64	$59.04
99202 New patient office or other outpatient visit, typically 20 minutes	47	47	$95.00	$72.30
11440 Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less	46	44	$222.00	$127.07
66982 Complex removal of cataract with insertion of prosthetic lens	40	31	$1500.00	$702.13
65855 Laser repair to improve eye fluid flow	36	21	$572.00	$232.43
0376T Insertion of eye drainage device	32	20	$1200.00	$303.68
0191T Internal insertion of eye fluid drainage device	32	20	$2000.00	$607.38
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	26	14	$756.00	$221.20
92235 Exam of retinal blood vessels using a special camera after injection of a dye	21	21	$187.76	$54.96
11441 Removal of growth (0.6 to 1.0 centimeters) of the face, ears, eyelids, nose, lips, or mouth	20	19	$280.00	$151.97
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$193.00	$156.19
67904 Repair of tendon of upper eyelid	17	17	$2329.41	$804.60
67924 Extensive repair of turning-inward eyelid defect	15	15	$1476.00	$438.89
15823 Removal of excessive skin and fat of upper eyelid	12	12	$2300.00	$761.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0585 Injection, onabotulinumtoxina, 1 unit	5,200	17	$6.00	$5.90
92136 Measurement of corneal curvature and depth of eye	1,865	676	$67.58	$34.98
J0178 Injection, aflibercept, 1 mg	1,641	189	$1150.00	$948.18
66984 Removal of cataract with insertion of lens	1,182	656	$1500.00	$539.00
67028 Injection of drug into eye	871	201	$364.99	$97.23
99213 Established patient office or other outpatient visit, typically 15 minutes	605	506	$75.00	$68.25
92134 Imaging of retina	558	263	$92.00	$39.22
92014 Established patient complete exam of visual system	452	373	$125.00	$119.23
66821 Removal of recurring cataract in lens capsule using a laser	360	266	$403.33	$269.04
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	191	185	$115.00	$100.81
92083 Exam of visual field with extended testing	176	172	$98.00	$59.81
92133 Imaging of optic nerve	174	173	$92.00	$35.43
92081 Exam of visual field with limited testing	106	98	$50.00	$32.44
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	106	101	$48.00	$40.91
11440 Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less	57	46	$222.00	$113.39
64612 Injection of chemical for paralysis of nerve muscles on side of face	52	17	$426.77	$151.28
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	40	40	$150.00	$100.76
92235 Exam of retinal blood vessels using a special camera after injection of a dye	36	35	$197.97	$54.20
67904 Repair of tendon of upper eyelid	36	36	$2233.33	$791.63
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$193.00	$150.61
99202 New patient office or other outpatient visit, typically 20 minutes	29	29	$95.00	$70.39
0191T Internal insertion of eye fluid drainage device	28	16	$2000.00	$597.01
66982 Complex removal of cataract with insertion of prosthetic lens	28	24	$1500.00	$677.76
65855 Laser repair to improve eye fluid flow	27	17	$593.19	$214.37
76519 Ultrasound of eye for determination of lens power	24	12	$70.50	$34.55
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	23	13	$756.00	$220.57
15823 Removal of excessive skin and fat of upper eyelid	16	16	$2175.00	$675.58
92250 Photography of the retina	15	15	$143.00	$47.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J0585 Injection, onabotulinumtoxina, 1 unit	4,600	16	$6.00	$5.87
92136 Measurement of corneal curvature and depth of eye	1,625	593	$66.97	$38.48
J0178 Injection, aflibercept, 1 mg	1,562	187	$1150.00	$958.50
66984 Removal of cataract with insertion of lens	1,023	573	$1500.00	$544.91
67028 Injection of drug into eye	832	196	$363.16	$96.87
92014 Established patient complete exam of visual system	593	468	$125.00	$116.69
92134 Imaging of retina	522	251	$92.00	$38.56
99213 Established patient office or other outpatient visit, typically 15 minutes	431	341	$75.00	$68.49
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	303	258	$48.00	$40.62
66821 Removal of recurring cataract in lens capsule using a laser	283	216	$404.24	$276.19
92083 Exam of visual field with extended testing	225	222	$98.00	$59.67
92133 Imaging of optic nerve	205	201	$92.00	$35.11
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	172	167	$115.00	$100.24
92081 Exam of visual field with limited testing	78	76	$50.00	$31.41
65855 Laser repair to improve eye fluid flow	61	37	$581.38	$230.58
92235 Exam of retinal blood vessels using a special camera after injection of a dye	56	55	$194.71	$42.96
99202 New patient office or other outpatient visit, typically 20 minutes	51	51	$95.00	$69.39
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	48	48	$150.00	$99.38
66982 Complex removal of cataract with insertion of prosthetic lens	46	34	$1500.00	$699.53
64612 Injection of chemical for paralysis of nerve muscles on side of face	46	16	$399.91	$143.57
11440 Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less	43	38	$222.00	$112.66
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	38	38	$193.00	$154.51
J3590 Unclassified biologics	37	14	$86.00	$50.22
0191T Internal insertion of eye fluid drainage device	28	16	$1935.71	$679.68
15823 Removal of excessive skin and fat of upper eyelid	25	25	$2400.00	$765.23
67820 Removal of eyelashes using forceps	21	17	$98.57	$47.55
76514 Ultrasound scan of cornea to determine thickness	19	19	$25.00	$13.23
92250 Photography of the retina	17	17	$143.00	$60.93
92285 Photography of content of eyes	12	12	$83.00	$19.06
11441 Removal of growth (0.6 to 1.0 centimeters) of the face, ears, eyelids, nose, lips, or mouth	12	12	$280.00	$155.90

Medical Specialties & State Licenses

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License IN IN01052241

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

200257620A (IN)

Hospital & Practice Group Affiliations

Integ Health System Pc

1011 W 2nd St, Bloomington, IN 474032216

Phone: 8123341213

Practice Associates & Co-Workers

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

6 Associated Practitioners

Dr. Joseph Mackey , MD

Ophthalmology

NPI 1114124575

Doctor of Medicine (M.D.)

Dr. Steven Holbrook , OD

Optometrist

NPI 1285616276

Doctor of Optometry

Dr. Rex Grossman , MD

Ophthalmology

NPI 1306828322

Doctor of Medicine (M.D.)

Dr. Charles Huck , OD

Optometrist

NPI 1346222320

Doctor of Optometry

Dr. Andrew Huck , MD, MS

Ophthalmology

NPI 1346770005

Doctor of Medicine (M.D.), Master of Science

Dr. Jason Gray , OD

Optometrist

NPI 1730387283

Doctor of Optometry

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active February 14, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location February 14, 2012

Registered at 1011 W 2ND ST, BLOOMINGTON, IN 474032216 (Tel: 8123341213)

📍

Updated Business Mailing Address February 14, 2012

Registered at 1011 W 2ND ST, BLOOMINGTON, IN 474032216 (Tel: 8123341213)

👤

Provider Name / Credentials Updated February 14, 2012

Recorded as WARREN CHANG, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 14, 2012

Ophthalmology (License #IN01052241 in IN)

🟢

Initial NPI Registration & Enumeration November 17, 2005

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: 1902888662

Entity Type:

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

Enumeration Date: November 17, 2005

Last Update: February 14, 2012

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1011 W 2nd St

Bloomington, IN 474032216

Phone: 8123341213

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.