Active NPI 1689666745 Individual Practitioner Male Practitioner

Dr. Peter T Zacharia , MD

Ophthalmology • Worcester, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Peter Zacharia, MD is a certified Ophthalmology practicing in Worcester, MA. With approximately 38 years of clinical experience since graduating from New York Medical College in 1988, Dr. Zacharia delivers high-quality medical care to the local community at 33 LANCASTER ST.

Dr. Zacharia accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, exam of visual field with extended testing, imaging of optic nerve. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

33 Lancaster St

Worcester, MA 016092615

Telephone 5087918484

Fax 5087911658

Associated Practice Facility / Clinic

🏢 Worcester Eye Consultants, Pc Facility NPI 1366434425

Medicare Profile & Education

Medical School

New York Medical College

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Worcester, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

38 Yrs +10.4 yrs vs City Avg

City Avg: 27.6 Yrs

State Avg: 30.8 Yrs

Regional Practice Density

43 Specialists

Practicing in Worcester, MA (841 Statewide)

Telehealth Adoption Rate

2.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

71.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Zacharia (38 Years) 38 Yrs

Worcester Specialty Average (27.6 Years) 27.6 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
99213 Established patient office or other outpatient visit, typically 15 minutes	1,031	518	$250.44	$93.44
92083 Exam of visual field with extended testing	455	402	$237.76	$65.21
92133 Imaging of optic nerve	430	387	$250.00	$37.74
92014 Established patient complete exam of visual system	414	411	$371.50	$130.83
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	248	200	$358.13	$130.20
92250 Photography of the retina	219	218	$174.44	$38.13
92134 Imaging of retina	112	101	$198.96	$41.62
92020 Examination of cornea and iris using lens device and slit lamp	109	105	$90.87	$27.61
92136 Measurement of corneal curvature and depth of eye	85	71	$220.00	$39.98
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	68	68	$468.34	$170.55
66984 Removal of cataract with insertion of lens	50	45	$2158.00	$535.99
76514 Ultrasound scan of cornea to determine thickness	35	35	$110.00	$10.98
66821 Removal of recurring cataract in lens capsule using a laser	24	24	$950.00	$345.86
66991 Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye	21	19	$2250.00	$705.80
65855 Laser repair to improve eye fluid flow	12	11	$974.67	$250.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,093	523	$250.00	$94.01
92083 Exam of visual field with extended testing	477	429	$239.37	$66.05
92014 Established patient complete exam of visual system	475	470	$350.00	$132.88
92133 Imaging of optic nerve	461	410	$250.00	$38.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	238	196	$350.00	$132.84
92250 Photography of the retina	211	209	$175.00	$39.23
92134 Imaging of retina	149	137	$200.00	$42.45
92020 Examination of cornea and iris using lens device and slit lamp	87	81	$85.00	$28.97
92136 Measurement of corneal curvature and depth of eye	82	71	$220.00	$42.15
66984 Removal of cataract with insertion of lens	68	54	$2158.00	$541.30
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	57	57	$450.00	$172.60
76514 Ultrasound scan of cornea to determine thickness	37	37	$110.00	$11.22
66821 Removal of recurring cataract in lens capsule using a laser	31	28	$950.00	$349.81
92012 Established patient problem focused exam of visual system	29	27	$255.00	$94.64
66991 Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye	15	13	$2250.00	$705.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,049	516	$250.00	$95.57
92133 Imaging of optic nerve	509	461	$250.05	$39.11
92083 Exam of visual field with extended testing	483	446	$213.66	$66.99
92014 Established patient complete exam of visual system	467	465	$350.00	$134.27
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	297	238	$327.27	$134.90
92250 Photography of the retina	176	175	$175.00	$39.41
92134 Imaging of retina	153	140	$200.00	$42.98
92020 Examination of cornea and iris using lens device and slit lamp	137	133	$75.36	$29.69
92136 Measurement of corneal curvature and depth of eye	102	84	$218.82	$43.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	102	102	$450.00	$175.56
66984 Removal of cataract with insertion of lens	64	51	$2158.00	$539.63
76514 Ultrasound scan of cornea to determine thickness	59	59	$110.00	$11.49
92012 Established patient problem focused exam of visual system	59	56	$255.00	$94.96
66821 Removal of recurring cataract in lens capsule using a laser	21	19	$950.00	$352.92
65855 Laser repair to improve eye fluid flow	18	18	$974.67	$259.11
66991 Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye	17	14	$2250.00	$711.39
92004 New patient complete exam of visual system	13	13	$375.00	$158.76

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	1,017	517	$237.26	$96.75
92133 Imaging of optic nerve	502	449	$250.00	$39.61
92083 Exam of visual field with extended testing	494	461	$190.94	$68.04
92014 Established patient complete exam of visual system	455	454	$350.00	$135.40
92012 Established patient problem focused exam of visual system	274	239	$255.00	$95.74
92250 Photography of the retina	202	201	$175.00	$41.76
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	167	157	$308.26	$136.83
92134 Imaging of retina	135	125	$200.00	$43.74
92020 Examination of cornea and iris using lens device and slit lamp	133	130	$65.00	$29.77
92136 Measurement of corneal curvature and depth of eye	103	88	$217.09	$48.73
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	102	102	$450.00	$177.21
66984 Removal of cataract with insertion of lens	84	73	$2158.00	$551.14
76514 Ultrasound scan of cornea to determine thickness	80	80	$110.00	$11.65
0191T Internal insertion of eye fluid drainage device	23	21	$925.00	$370.53
99441 Telephone medical discussion with physician, 5-10 minutes	23	21	$105.00	$59.53
66821 Removal of recurring cataract in lens capsule using a laser	22	22	$950.00	$358.20
92004 New patient complete exam of visual system	20	20	$375.00	$160.70
66180 Creation of shunt to improve eye fluid flow using tissue graft	11	11	$2960.00	$1204.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	1,024	525	$255.00	$94.96
92014 Established patient complete exam of visual system	562	556	$350.00	$135.29
92083 Exam of visual field with extended testing	484	453	$185.10	$68.07
92133 Imaging of optic nerve	452	421	$250.00	$39.64
92250 Photography of the retina	197	196	$175.38	$47.82
92134 Imaging of retina	120	114	$200.00	$43.69
92020 Examination of cornea and iris using lens device and slit lamp	109	106	$64.83	$29.06
92136 Measurement of corneal curvature and depth of eye	78	66	$197.12	$54.19
66984 Removal of cataract with insertion of lens	74	64	$2158.00	$553.91
76514 Ultrasound scan of cornea to determine thickness	58	58	$110.00	$12.07
92004 New patient complete exam of visual system	43	43	$375.00	$157.41
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	42	42	$424.29	$172.39
99441 Telephone medical discussion with physician, 5-10 minutes	38	35	$105.00	$48.74
66821 Removal of recurring cataract in lens capsule using a laser	28	27	$950.00	$357.41
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	23	$278.26	$115.59
65855 Laser repair to improve eye fluid flow	20	19	$966.15	$255.32
0191T Internal insertion of eye fluid drainage device	17	15	$871.76	$356.77
99442 Telephone medical discussion with physician, 11-20 minutes	15	14	$122.00	$74.24
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$255.00	$114.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	1,294	575	$255.00	$93.76
92083 Exam of visual field with extended testing	584	527	$185.09	$68.39
92014 Established patient complete exam of visual system	574	565	$347.60	$134.28
92133 Imaging of optic nerve	474	447	$250.00	$39.25
92250 Photography of the retina	220	220	$175.00	$53.52
92020 Examination of cornea and iris using lens device and slit lamp	141	132	$65.00	$29.23
92136 Measurement of corneal curvature and depth of eye	128	109	$198.52	$57.98
66984 Removal of cataract with insertion of lens	101	85	$2158.00	$636.51
92134 Imaging of retina	80	76	$200.00	$43.48
76514 Ultrasound scan of cornea to determine thickness	80	80	$110.00	$12.64
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	54	54	$390.00	$173.13
92004 New patient complete exam of visual system	54	54	$375.00	$159.98
66821 Removal of recurring cataract in lens capsule using a laser	37	32	$950.00	$354.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	25	25	$250.00	$114.57
65855 Laser repair to improve eye fluid flow	24	22	$959.46	$263.20
0191T Internal insertion of eye fluid drainage device	18	15	$562.22	$351.29
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$255.00	$114.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	1,237	578	$255.00	$92.41
92014 Established patient complete exam of visual system	620	608	$327.42	$132.83
92083 Exam of visual field with extended testing	566	508	$184.71	$67.88
92133 Imaging of optic nerve	519	468	$250.00	$39.60
92250 Photography of the retina	283	279	$175.27	$59.87
92020 Examination of cornea and iris using lens device and slit lamp	170	157	$65.00	$28.13
92136 Measurement of corneal curvature and depth of eye	138	115	$193.32	$62.50
66984 Removal of cataract with insertion of lens	123	103	$2158.00	$655.65
76514 Ultrasound scan of cornea to determine thickness	100	100	$110.00	$15.35
92004 New patient complete exam of visual system	81	81	$373.77	$158.84
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	54	54	$367.78	$171.79
92134 Imaging of retina	51	50	$200.00	$43.55
66821 Removal of recurring cataract in lens capsule using a laser	24	23	$950.00	$349.83
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	23	23	$220.00	$112.56
65855 Laser repair to improve eye fluid flow	18	18	$962.50	$259.56
0474T Insertion of drainage device and creation of fluid reservoir in front chamber of eye	12	12	$1350.00	$404.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92012 Established patient problem focused exam of visual system	1,155	559	$255.00	$89.16
92014 Established patient complete exam of visual system	583	572	$310.02	$128.98
92083 Exam of visual field with extended testing	518	485	$185.10	$66.85
92133 Imaging of optic nerve	427	409	$250.06	$38.97
92250 Photography of the retina	346	344	$175.22	$69.19
92020 Examination of cornea and iris using lens device and slit lamp	171	163	$65.00	$27.96
92136 Measurement of corneal curvature and depth of eye	112	100	$188.24	$74.15
66984 Removal of cataract with insertion of lens	102	88	$2157.94	$608.93
76514 Ultrasound scan of cornea to determine thickness	100	100	$110.00	$14.82
92004 New patient complete exam of visual system	89	89	$350.00	$155.03
92134 Imaging of retina	42	41	$200.00	$42.72
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	41	41	$350.00	$168.76
66821 Removal of recurring cataract in lens capsule using a laser	20	19	$950.00	$343.84
65850 Insertion of eye fluid drainage tube	19	17	$2200.00	$871.06
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	16	12	$1258.00	$308.90
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	12	$220.00	$111.29
66982 Complex removal of cataract with insertion of prosthetic lens	14	14	$2368.14	$618.13
65855 Laser repair to improve eye fluid flow	12	12	$950.33	$253.92

Medical Specialties & State Licenses

CMS Verified: 2023-12-01

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License MA 75948

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

3101568 (MA)

Commercial Insurance / Payer ID Fallonid

44372 (MA)

Commercial Insurance / Payer ID Network Health Id

997577 (MA)

Commercial Insurance / Payer ID Cigna Id

489370 (MA)

Commercial Insurance / Payer ID Harvard Pilgim Hp

151563 (MA)

Commercial Insurance / Payer ID Group Tax Id

753183220 (MA)

Commercial Insurance / Payer ID Tufts Id

075948 (MA)

Commercial Insurance / Payer ID Blue Shield Id

J13064 (MA)

Secondary Practice Locations

281 Lincoln Street

Worcester, MA 016052138

Phone: 5083346855

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Isabel Balderas , MD

Ophthalmology

NPI 1043426281

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 November 08, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location November 08, 2010

Registered at 33 LANCASTER ST, WORCESTER, MA 016092615 (Tel: 5087918484)

📍

Updated Business Mailing Address November 08, 2010

Registered at 33 LANCASTER ST, WORCESTER, MA 016092615 (Tel: 5087918484)

👤

Provider Name / Credentials Updated November 08, 2010

Recorded as PETER ZACHARIA, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 08, 2010

Ophthalmology (License #75948 in MA)

🟢

Initial NPI Registration & Enumeration August 16, 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: 1689666745

Entity Type:

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

Enumeration Date: August 16, 2005

Last Update: December 01, 2023

Sole Proprietor: No

Update or Correct Profile

Mailing Address

33 Lancaster St

Worcester, MA 016092615

Phone: 5087918484

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.