Active NPI 1386628279 Individual Practitioner Male Practitioner

Dr. John Adam Thayer , MD

Ophthalmology • Westfield, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Thayer, MD is a certified Ophthalmology practicing in Westfield, MA. With approximately 36 years of clinical experience since graduating from University Of Michigan Medical School in 1990, Dr. Thayer delivers high-quality medical care to the local community at 501 SOUTHAMPTON RD.

Dr. Thayer accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient complete exam of visual system, established patient problem focused exam of visual system, 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

501 Southampton Rd
Suite D

Westfield, MA 010851592

Telephone 4135723000

Associated Practice Facility / Clinic

🏢 Westfield Eye Center, Inc Facility NPI 1649194689

Medicare Profile & Education

Medical School

University Of Michigan Medical School

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Westfield, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

36 Yrs Matches City Avg

City Avg: 36.0 Yrs

State Avg: 30.8 Yrs

Regional Practice Density

2 Specialists

Practicing in Westfield, MA (841 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

56.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Thayer (36 Years) 36 Yrs

Westfield Specialty Average (36.0 Years) 36.0 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	922	857	$250.00	$128.18
92012 Established patient problem focused exam of visual system	437	324	$160.00	$90.81
92133 Imaging of optic nerve	432	298	$100.00	$36.75
92134 Imaging of retina	395	300	$100.00	$41.06
92136 Measurement of corneal curvature and depth of eye	249	162	$200.00	$39.90
68841 Insertion of drug delivery implant into tear duct of eye	181	107	$100.00	$15.95
66984 Removal of cataract with insertion of lens	157	98	$1500.00	$533.39
92083 Exam of visual field with extended testing	135	132	$150.00	$65.19
92020 Examination of cornea and iris using lens device and slit lamp	108	98	$80.00	$27.86
92025 Ct scan of cornea	74	71	$80.00	$33.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	70	70	$280.00	$168.81
66821 Removal of recurring cataract in lens capsule using a laser	68	56	$717.65	$339.58
65855 Laser repair to improve eye fluid flow	56	43	$744.50	$247.00
92004 New patient complete exam of visual system	53	53	$275.00	$152.18
66982 Complex removal of cataract with insertion of prosthetic lens	43	35	$1753.00	$744.70
76514 Ultrasound scan of cornea to determine thickness	31	31	$50.00	$10.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	22	22	$181.82	$129.63
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	18	11	$733.33	$303.51
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	18	$95.00	$57.44
92201 Extended exam of the back part of the eye with retinal drawing	17	15	$40.00	$24.91
92060 Exam to measure eye deviation and range of motion	16	14	$110.00	$64.96
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	15	$245.00	$182.55

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	956	867	$250.00	$130.31
92012 Established patient problem focused exam of visual system	408	306	$160.00	$92.98
92133 Imaging of optic nerve	406	296	$100.00	$37.54
92134 Imaging of retina	401	298	$100.00	$41.45
92136 Measurement of corneal curvature and depth of eye	223	137	$200.00	$40.20
68841 Insertion of drug delivery implant into tear duct of eye	187	114	$100.00	$16.50
92083 Exam of visual field with extended testing	181	177	$150.00	$65.22
66984 Removal of cataract with insertion of lens	166	102	$1500.00	$550.28
92020 Examination of cornea and iris using lens device and slit lamp	106	103	$80.00	$28.24
92025 Ct scan of cornea	71	71	$80.00	$34.39
65855 Laser repair to improve eye fluid flow	63	49	$689.00	$251.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	63	63	$280.00	$170.21
66982 Complex removal of cataract with insertion of prosthetic lens	57	38	$1753.00	$753.30
92004 New patient complete exam of visual system	43	43	$275.00	$155.28
66821 Removal of recurring cataract in lens capsule using a laser	36	30	$600.00	$340.92
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	36	36	$175.00	$130.89
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	33	32	$95.00	$58.14
92060 Exam to measure eye deviation and range of motion	32	21	$110.00	$65.51
76514 Ultrasound scan of cornea to determine thickness	29	29	$50.00	$10.98
92201 Extended exam of the back part of the eye with retinal drawing	26	21	$40.00	$25.22
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	26	15	$700.00	$308.28
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$140.00	$92.91
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	15	$245.00	$183.43
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$250.00	$115.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	888	811	$221.57	$132.36
92133 Imaging of optic nerve	441	308	$100.00	$37.33
92134 Imaging of retina	329	256	$100.00	$41.92
92136 Measurement of corneal curvature and depth of eye	227	146	$200.00	$43.05
92012 Established patient problem focused exam of visual system	207	176	$157.29	$93.36
68841 Insertion of drug delivery implant into tear duct of eye	198	121	$100.00	$16.72
92083 Exam of visual field with extended testing	174	162	$150.00	$66.07
99213 Established patient office or other outpatient visit, typically 15 minutes	172	153	$139.97	$94.32
66984 Removal of cataract with insertion of lens	156	99	$1500.00	$558.12
92020 Examination of cornea and iris using lens device and slit lamp	129	118	$80.00	$28.86
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	128	120	$174.96	$133.24
92004 New patient complete exam of visual system	106	106	$249.29	$156.17
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	87	87	$271.26	$173.28
66982 Complex removal of cataract with insertion of prosthetic lens	63	47	$1753.00	$764.43
66821 Removal of recurring cataract in lens capsule using a laser	53	45	$600.00	$348.47
92025 Ct scan of cornea	51	50	$80.00	$34.84
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	49	45	$95.00	$58.53
65855 Laser repair to improve eye fluid flow	46	36	$689.00	$255.53
76514 Ultrasound scan of cornea to determine thickness	38	38	$46.58	$11.30
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	36	34	$244.86	$183.45
92201 Extended exam of the back part of the eye with retinal drawing	33	28	$40.00	$25.51
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	26	15	$700.00	$314.10
92060 Exam to measure eye deviation and range of motion	23	19	$110.00	$65.75
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$217.65	$116.46

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	861	829	$190.00	$133.57
92133 Imaging of optic nerve	423	306	$100.00	$38.03
92134 Imaging of retina	341	275	$100.00	$42.19
99213 Established patient office or other outpatient visit, typically 15 minutes	298	226	$135.00	$95.56
92020 Examination of cornea and iris using lens device and slit lamp	184	168	$80.00	$29.46
92136 Measurement of corneal curvature and depth of eye	179	119	$200.00	$45.37
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	173	151	$170.00	$135.54
66984 Removal of cataract with insertion of lens	142	88	$1500.00	$568.58
92083 Exam of visual field with extended testing	138	125	$150.00	$67.36
65855 Laser repair to improve eye fluid flow	97	69	$689.00	$260.47
0356T Insertion of drug delivery implant into tear ducts	93	59	$200.00	$85.39
92004 New patient complete exam of visual system	85	85	$225.00	$159.18
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	76	74	$240.00	$187.31
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	51	45	$90.00	$59.11
66821 Removal of recurring cataract in lens capsule using a laser	44	41	$600.00	$354.13
76514 Ultrasound scan of cornea to determine thickness	41	41	$40.00	$11.29
92012 Established patient problem focused exam of visual system	41	36	$140.00	$95.20
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	39	39	$255.00	$175.36
92201 Extended exam of the back part of the eye with retinal drawing	35	25	$40.00	$26.01
66982 Complex removal of cataract with insertion of prosthetic lens	33	27	$1753.00	$778.53
92025 Ct scan of cornea	29	29	$80.00	$35.92
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	24	15	$700.00	$319.70
92060 Exam to measure eye deviation and range of motion	21	18	$110.00	$67.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$190.00	$117.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	724	705	$190.00	$133.28
92133 Imaging of optic nerve	322	240	$100.00	$38.38
92134 Imaging of retina	277	230	$100.00	$42.67
99213 Established patient office or other outpatient visit, typically 15 minutes	197	146	$135.00	$78.35
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	163	138	$170.00	$114.08
92136 Measurement of corneal curvature and depth of eye	156	99	$200.00	$49.91
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	140	130	$240.00	$153.56
66984 Removal of cataract with insertion of lens	119	74	$1500.00	$568.99
92083 Exam of visual field with extended testing	84	79	$150.00	$67.45
92020 Examination of cornea and iris using lens device and slit lamp	77	73	$80.00	$28.14
92004 New patient complete exam of visual system	61	61	$225.00	$159.00
66821 Removal of recurring cataract in lens capsule using a laser	49	47	$600.00	$345.80
65855 Laser repair to improve eye fluid flow	41	29	$689.00	$256.37
92012 Established patient problem focused exam of visual system	34	29	$140.00	$93.88
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	32	20	$700.00	$301.15
66982 Complex removal of cataract with insertion of prosthetic lens	32	24	$1753.00	$793.63
92025 Ct scan of cornea	31	31	$80.00	$35.76
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$255.00	$167.83
92060 Exam to measure eye deviation and range of motion	29	21	$110.00	$67.23
92201 Extended exam of the back part of the eye with retinal drawing	24	21	$40.00	$26.53
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	19	18	$90.00	$48.21
76514 Ultrasound scan of cornea to determine thickness	13	13	$40.00	$11.91

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	825	803	$190.00	$132.08
92133 Imaging of optic nerve	443	326	$100.00	$37.65
92134 Imaging of retina	282	231	$100.00	$42.04
99213 Established patient office or other outpatient visit, typically 15 minutes	264	208	$135.00	$77.52
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	205	177	$170.00	$113.18
92136 Measurement of corneal curvature and depth of eye	181	124	$200.00	$54.04
92083 Exam of visual field with extended testing	174	163	$150.00	$67.40
66984 Removal of cataract with insertion of lens	154	100	$1500.00	$644.85
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	131	120	$240.00	$149.98
92020 Examination of cornea and iris using lens device and slit lamp	110	103	$80.00	$28.95
65855 Laser repair to improve eye fluid flow	56	41	$689.00	$259.10
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	54	31	$700.00	$316.68
92004 New patient complete exam of visual system	50	50	$225.00	$158.64
66821 Removal of recurring cataract in lens capsule using a laser	44	41	$600.00	$350.93
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	43	40	$90.00	$47.28
92012 Established patient problem focused exam of visual system	43	41	$140.00	$92.94
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	37	37	$255.00	$172.00
66982 Complex removal of cataract with insertion of prosthetic lens	28	22	$1753.00	$835.07
92025 Ct scan of cornea	25	22	$80.00	$37.08
76514 Ultrasound scan of cornea to determine thickness	24	24	$40.00	$12.04
92060 Exam to measure eye deviation and range of motion	20	18	$110.00	$67.83
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	14	14	$190.00	$113.38
92225 Examination of eye by ophthalmoscope with retinal drawing	13	13	$105.00	$28.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	985	961	$190.00	$128.22
92133 Imaging of optic nerve	504	354	$100.00	$37.17
99213 Established patient office or other outpatient visit, typically 15 minutes	366	282	$135.00	$74.06
92134 Imaging of retina	260	206	$100.00	$41.60
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	230	202	$170.00	$109.29
92083 Exam of visual field with extended testing	184	175	$150.00	$65.85
92136 Measurement of corneal curvature and depth of eye	165	111	$200.00	$59.96
66984 Removal of cataract with insertion of lens	141	90	$1500.00	$654.63
92020 Examination of cornea and iris using lens device and slit lamp	135	127	$80.00	$26.90
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	97	94	$240.00	$146.20
92004 New patient complete exam of visual system	81	81	$225.00	$152.69
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	62	41	$700.00	$306.12
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	55	49	$90.00	$44.76
92012 Established patient problem focused exam of visual system	49	47	$140.00	$88.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	42	42	$255.00	$167.21
65855 Laser repair to improve eye fluid flow	40	30	$689.00	$251.90
76514 Ultrasound scan of cornea to determine thickness	39	39	$40.00	$14.37
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$190.00	$109.68
92025 Ct scan of cornea	31	30	$80.00	$35.53
66821 Removal of recurring cataract in lens capsule using a laser	29	27	$600.00	$339.44
92060 Exam to measure eye deviation and range of motion	22	18	$110.00	$66.39
66982 Complex removal of cataract with insertion of prosthetic lens	20	16	$1753.00	$812.62
92225 Examination of eye by ophthalmoscope with retinal drawing	16	16	$105.00	$25.94
92250 Photography of the retina	14	14	$135.00	$59.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	946	929	$190.00	$124.22
92133 Imaging of optic nerve	524	384	$100.00	$36.97
99213 Established patient office or other outpatient visit, typically 15 minutes	457	340	$135.00	$73.11
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	248	207	$170.00	$107.79
92134 Imaging of retina	200	156	$100.00	$40.81
92020 Examination of cornea and iris using lens device and slit lamp	190	176	$80.00	$26.87
92136 Measurement of corneal curvature and depth of eye	177	118	$200.00	$64.31
92083 Exam of visual field with extended testing	159	149	$150.00	$65.25
66984 Removal of cataract with insertion of lens	142	91	$1500.00	$644.31
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	113	109	$240.00	$144.85
92004 New patient complete exam of visual system	97	97	$225.00	$150.61
66761 Creation of eye fluid drainage tracts in iris using a laser, per session	85	53	$700.00	$299.41
65855 Laser repair to improve eye fluid flow	82	53	$689.00	$240.49
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	62	57	$90.00	$43.94
76514 Ultrasound scan of cornea to determine thickness	62	62	$40.00	$14.00
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	46	46	$255.00	$163.93
92060 Exam to measure eye deviation and range of motion	36	32	$110.00	$65.96
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	34	34	$190.00	$108.47
66982 Complex removal of cataract with insertion of prosthetic lens	32	23	$1753.00	$799.45
66821 Removal of recurring cataract in lens capsule using a laser	30	27	$600.00	$333.58
92025 Ct scan of cornea	28	28	$80.00	$35.26
92012 Established patient problem focused exam of visual system	18	17	$140.00	$86.39
92225 Examination of eye by ophthalmoscope with retinal drawing	17	17	$105.00	$27.18
99202 New patient office or other outpatient visit, typically 20 minutes	13	13	$150.00	$75.23
92250 Photography of the retina	13	13	$135.00	$67.28

Medical Specialties & State Licenses

CMS Verified: 2025-05-20

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License MA 155865

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

3178307 (MA)

Commercial Insurance / Payer ID Bcbs Of Ma Id

J18741 (MA)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active December 15, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location December 15, 2014

Registered at 501 SOUTHAMPTON RD, SUITE D, WESTFIELD, MA 010851592 (Tel: 4135723000)

📍

Updated Business Mailing Address December 15, 2014

Registered at 501 SOUTHAMPTON RD, SUITE D, WESTFIELD, MA 010851592 (Tel: 4135723000)

👤

Provider Name / Credentials Updated December 15, 2014

Recorded as JOHN THAYER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 15, 2014

Ophthalmology (License #155865 in MA)

🟢

Initial NPI Registration & Enumeration December 03, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1386628279

Entity Type:

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

Enumeration Date: December 03, 2005

Last Update: May 20, 2025

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

501 Southampton Rd, Suite D

Westfield, MA 010851592

Phone: 4135723000

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

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