Active NPI 1497808760 Individual Practitioner Male Practitioner

Dr. Alexander C Chang , MD

Ophthalmology • Pittsburgh, PA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Alexander Chang, MD is a certified Ophthalmology practicing in Pittsburgh, PA. With approximately 50 years of clinical experience since graduating from Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University in 1976, Dr. Chang delivers high-quality medical care to the local community at 2101 GREENTREE RD STE 105.

Dr. Chang is affiliated with Alexander Chang Md Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient complete exam of visual system, imaging of retina, established patient problem focused exam of visual system. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2101 Greentree Rd Ste 105

Pittsburgh, PA 152201400

Telephone 4124292020

Fax 4124290932

Associated Practice Facility / Clinic

🏢 Alexander Chang Md Pc Facility NPI 1386861995

Medicare Profile & Education

Medical School

Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University

Graduation Year

1976

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Pittsburgh, PA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

50 Yrs +25.5 yrs vs City Avg

City Avg: 24.5 Yrs

State Avg: 30.9 Yrs

Regional Practice Density

130 Specialists

Practicing in Pittsburgh, PA (1152 Statewide)

Telehealth Adoption Rate

0.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

50.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chang (50 Years) 50 Yrs

Pittsburgh Specialty Average (24.5 Years) 24.5 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
92014 Established patient complete exam of visual system	1,463	1,419	$175.00	$111.35
92134 Imaging of retina	627	433	$55.00	$34.92
92012 Established patient problem focused exam of visual system	377	336	$125.00	$78.05
99213 Established patient office or other outpatient visit, typically 15 minutes	371	277	$125.00	$81.03
92133 Imaging of optic nerve	350	341	$55.00	$31.48
83861 Microfluid analysis of tears	312	147	$30.00	$22.03
92083 Exam of visual field with extended testing	274	258	$85.00	$54.89
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	217	159	$75.00	$49.94
92136 Measurement of corneal curvature and depth of eye	206	136	$125.00	$26.42
66984 Removal of cataract with insertion of lens	199	122	$1000.00	$462.10
92004 New patient complete exam of visual system	189	189	$200.00	$132.04
92250 Photography of the retina	140	135	$85.00	$31.40
67028 Injection of drug into eye	117	35	$161.54	$103.06
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	107	105	$200.00	$108.99
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	103	94	$175.00	$114.37
92025 Ct scan of cornea	102	101	$50.00	$31.66
J0178 Injection, aflibercept, 1 mg	101	11	$1750.00	$828.07
J9035 Injection, bevacizumab, 10 mg	70	21	$202.86	$72.26
92285 Photography of content of eyes	63	46	$65.00	$20.05
66821 Removal of recurring cataract in lens capsule using a laser	36	34	$527.78	$295.02
76514 Ultrasound scan of cornea to determine thickness	30	30	$35.00	$9.42
65855 Laser repair to improve eye fluid flow	14	11	$625.00	$212.66

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	1,370	1,341	$175.00	$120.13
92134 Imaging of retina	553	380	$55.00	$38.16
92012 Established patient problem focused exam of visual system	371	325	$125.00	$85.16
99213 Established patient office or other outpatient visit, typically 15 minutes	348	280	$125.00	$86.37
92133 Imaging of optic nerve	348	336	$55.00	$34.26
83861 Microfluid analysis of tears	248	122	$30.00	$22.03
92083 Exam of visual field with extended testing	232	219	$85.00	$58.90
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	198	157	$75.00	$53.89
92136 Measurement of corneal curvature and depth of eye	194	125	$125.00	$29.52
92250 Photography of the retina	180	177	$85.00	$34.81
66984 Removal of cataract with insertion of lens	178	103	$1000.00	$512.08
92004 New patient complete exam of visual system	173	173	$200.00	$142.66
67028 Injection of drug into eye	118	29	$155.08	$109.29
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	106	96	$175.00	$122.45
J9035 Injection, bevacizumab, 10 mg	90	27	$202.22	$71.33
92025 Ct scan of cornea	55	52	$50.00	$34.06
66821 Removal of recurring cataract in lens capsule using a laser	52	46	$528.85	$321.41
92285 Photography of content of eyes	42	33	$65.00	$21.62
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	38	38	$200.00	$119.14
76514 Ultrasound scan of cornea to determine thickness	25	25	$35.00	$10.28
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$210.00	$160.00
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	20	20	$150.00	$107.58

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	1,298	1,272	$175.00	$122.38
92134 Imaging of retina	451	323	$55.00	$38.94
99213 Established patient office or other outpatient visit, typically 15 minutes	346	268	$125.00	$88.18
92133 Imaging of optic nerve	334	321	$55.00	$35.15
92012 Established patient problem focused exam of visual system	289	246	$125.00	$86.01
92083 Exam of visual field with extended testing	252	235	$85.00	$60.20
92004 New patient complete exam of visual system	218	218	$200.00	$145.07
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	200	158	$75.00	$54.69
92136 Measurement of corneal curvature and depth of eye	197	126	$125.00	$30.45
66984 Removal of cataract with insertion of lens	188	111	$1000.00	$518.00
92250 Photography of the retina	186	180	$85.00	$35.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	165	152	$175.00	$124.21
83861 Microfluid analysis of tears	88	43	$30.00	$22.28
67028 Injection of drug into eye	75	20	$162.00	$113.33
J9035 Injection, bevacizumab, 10 mg	62	17	$203.23	$68.35
92025 Ct scan of cornea	54	54	$50.00	$34.15
92285 Photography of content of eyes	44	32	$65.00	$21.95
76514 Ultrasound scan of cornea to determine thickness	42	42	$35.00	$10.55
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	36	36	$210.00	$162.65
66821 Removal of recurring cataract in lens capsule using a laser	26	23	$519.23	$326.73
65855 Laser repair to improve eye fluid flow	19	16	$625.00	$237.63
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$150.00	$108.87
15823 Removal of excessive skin and fat of upper eyelid	14	14	$1735.71	$756.75
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$95.00	$69.72
92002 New patient problem focused exam of visual system	11	11	$125.00	$83.27
92020 Examination of cornea and iris using lens device and slit lamp	11	11	$50.00	$27.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	760	747	$173.76	$123.37
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	549	514	$173.27	$126.96
92134 Imaging of retina	449	327	$55.00	$39.68
92133 Imaging of optic nerve	333	316	$55.00	$36.05
99213 Established patient office or other outpatient visit, typically 15 minutes	319	250	$124.25	$89.34
92004 New patient complete exam of visual system	307	307	$199.09	$146.97
83861 Microfluid analysis of tears	178	84	$30.00	$22.48
92083 Exam of visual field with extended testing	173	164	$85.00	$61.32
92012 Established patient problem focused exam of visual system	172	159	$124.65	$87.40
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	168	120	$75.00	$54.81
92250 Photography of the retina	162	157	$85.00	$37.53
92136 Measurement of corneal curvature and depth of eye	156	102	$125.00	$30.39
66984 Removal of cataract with insertion of lens	139	85	$1000.00	$520.25
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	83	83	$207.89	$164.69
76514 Ultrasound scan of cornea to determine thickness	74	74	$35.00	$10.70
67028 Injection of drug into eye	63	18	$157.14	$113.63
92025 Ct scan of cornea	61	59	$50.00	$35.28
J9035 Injection, bevacizumab, 10 mg	54	16	$200.00	$71.86
92285 Photography of content of eyes	37	23	$65.00	$22.02
66821 Removal of recurring cataract in lens capsule using a laser	26	26	$538.46	$338.15
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$146.00	$109.95
92002 New patient problem focused exam of visual system	15	15	$124.00	$84.04

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	620	501	$125.16	$107.46
92014 Established patient complete exam of visual system	614	594	$140.34	$123.73
92134 Imaging of retina	314	211	$55.00	$39.94
99213 Established patient office or other outpatient visit, typically 15 minutes	278	202	$85.14	$73.66
92133 Imaging of optic nerve	254	237	$55.00	$36.43
83861 Microfluid analysis of tears	250	118	$30.00	$22.33
92250 Photography of the retina	149	140	$85.00	$43.39
92083 Exam of visual field with extended testing	142	136	$85.00	$61.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	141	141	$185.35	$162.02
66984 Removal of cataract with insertion of lens	111	72	$1000.00	$537.96
92136 Measurement of corneal curvature and depth of eye	104	77	$125.00	$32.06
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	104	86	$65.10	$44.51
76514 Ultrasound scan of cornea to determine thickness	60	58	$35.00	$11.26
J9035 Injection, bevacizumab, 10 mg	53	17	$200.00	$78.06
67028 Injection of drug into eye	50	17	$121.90	$103.86
92285 Photography of content of eyes	31	23	$65.00	$21.15
92004 New patient complete exam of visual system	30	30	$160.00	$148.33
92025 Ct scan of cornea	27	24	$50.00	$35.11
66821 Removal of recurring cataract in lens capsule using a laser	25	25	$560.00	$347.06
92012 Established patient problem focused exam of visual system	19	18	$95.00	$83.13
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$120.00	$106.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	746	735	$139.97	$122.45
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	683	580	$125.00	$105.97
83861 Microfluid analysis of tears	662	309	$30.00	$22.03
99213 Established patient office or other outpatient visit, typically 15 minutes	281	187	$84.93	$72.22
92134 Imaging of retina	261	221	$55.00	$39.56
92133 Imaging of optic nerve	256	248	$55.00	$35.47
92250 Photography of the retina	182	175	$85.00	$47.78
92083 Exam of visual field with extended testing	170	152	$85.00	$60.70
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	111	111	$184.73	$160.93
92136 Measurement of corneal curvature and depth of eye	105	69	$125.00	$38.93
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	102	85	$65.00	$43.65
66984 Removal of cataract with insertion of lens	96	66	$1000.00	$622.34
92012 Established patient problem focused exam of visual system	96	82	$95.00	$85.42
92285 Photography of content of eyes	68	37	$65.00	$20.54
76514 Ultrasound scan of cornea to determine thickness	47	47	$35.00	$11.36
92004 New patient complete exam of visual system	40	40	$160.00	$146.90
66821 Removal of recurring cataract in lens capsule using a laser	33	32	$484.85	$357.07
92025 Ct scan of cornea	15	15	$45.00	$35.94

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	972	941	$135.01	$122.12
83861 Microfluid analysis of tears	334	161	$29.67	$22.03
92133 Imaging of optic nerve	252	246	$55.00	$36.28
92134 Imaging of retina	250	218	$55.00	$40.09
99213 Established patient office or other outpatient visit, typically 15 minutes	240	181	$80.00	$70.84
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	239	156	$65.00	$42.45
92012 Established patient problem focused exam of visual system	221	192	$95.00	$84.63
92083 Exam of visual field with extended testing	159	140	$85.00	$61.01
92004 New patient complete exam of visual system	133	133	$160.00	$145.36
66984 Removal of cataract with insertion of lens	120	73	$1000.00	$614.13
92250 Photography of the retina	118	116	$85.00	$53.73
92136 Measurement of corneal curvature and depth of eye	101	75	$125.00	$61.91
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	93	90	$125.00	$103.66
76514 Ultrasound scan of cornea to determine thickness	77	77	$35.00	$14.16
66821 Removal of recurring cataract in lens capsule using a laser	25	25	$480.00	$352.65
92275 Recording of retinal electrical responses to external stimuli	19	19	$225.00	$143.38
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$120.00	$105.31
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$90.00	$72.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	1,000	951	$134.89	$114.80
83861 Microfluid analysis of tears	451	205	$25.00	$22.21
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	347	251	$65.00	$40.46
92012 Established patient problem focused exam of visual system	329	264	$95.00	$79.06
92134 Imaging of retina	272	236	$55.00	$37.78
92133 Imaging of optic nerve	246	238	$55.00	$34.44
92004 New patient complete exam of visual system	157	157	$159.94	$137.94
92083 Exam of visual field with extended testing	151	141	$85.00	$57.31
92250 Photography of the retina	146	143	$84.52	$60.13
66984 Removal of cataract with insertion of lens	124	83	$1000.00	$585.59
92136 Measurement of corneal curvature and depth of eye	117	93	$125.00	$71.87
99213 Established patient office or other outpatient visit, typically 15 minutes	99	87	$80.00	$68.29
92275 Recording of retinal electrical responses to external stimuli	70	69	$225.00	$136.24
76514 Ultrasound scan of cornea to determine thickness	57	57	$35.00	$13.18
66821 Removal of recurring cataract in lens capsule using a laser	23	22	$452.17	$324.80
99202 New patient office or other outpatient visit, typically 20 minutes	15	15	$90.00	$70.01
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$120.00	$101.06

Medical Specialties & State Licenses

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License PA MD019796E

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

0007424010005 (PA)

Hospital & Practice Group Affiliations

Alexander Chang Md Pc

2101 Greentree Rd, Pittsbugh, PA 152201400

Phone: 4124292020

Alexander Chang Md Pc

2101 Greentree Rd, Pittsburgh, PA 152201400

Alexander Chang Md Pc

3380 Washington Rd, Mc Murray, PA 153173065

Phone: 4124292020

Practice Associates & Co-Workers

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

4 Associated Practitioners

Dr. Rose Ngan , MD

Ophthalmology

NPI 1255453114

Doctor of Medicine (M.D.)

Dr. Michele Schraeder , OD

Optometrist

NPI 1346577301

Doctor of Optometry

Dr. Brooke Calle , OD

Optometrist

NPI 1356235378

Doctor of Optometry

Dr. Irving Weinberger , MD

Ophthalmology

NPI 1861571267

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active January 28, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location January 28, 2008

Registered at 2101 GREENTREE RD STE 105, PITTSBURGH, PA 152201400 (Tel: 4124292020)

📍

Updated Business Mailing Address January 28, 2008

Registered at 2101 GREENTREE RD STE 105, PITTSBURGH, PA 152201400 (Tel: 4124292020)

👤

Provider Name / Credentials Updated January 28, 2008

Recorded as ALEXANDER CHANG, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 28, 2008

Ophthalmology (License #MD019796E in PA)

🟢

Initial NPI Registration & Enumeration January 19, 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: 1497808760

Entity Type:

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

Enumeration Date: January 19, 2007

Last Update: January 28, 2008

Sole Proprietor: No

Update or Correct Profile

Mailing Address

2101 Greentree Rd Ste 105

Pittsburgh, PA 152201400

Phone: 4124292020

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.