Deactivated NPI 1922078278 Deactivated / Inactive NPI Male Practitioner

Dr. Abie R Chadderdon , OD

Optometrist • Marshalltown, IA

⚠️

Notice of NPI Deactivation & Inactive Practice Status

According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. Abie Chadderdon has officially deactivated this NPI record and ceased active healthcare practice.

Registration / Start Date January 26, 2006

NPI Deactivation Date October 08, 2025

Total Practice Duration ~19 Years of Practice (2006 – 2025)

Professional Overview & Biography Verified Profile Summary

Dr. Abie Chadderdon, OD was a registered Optometrist practicing in Marshalltown, IA. Throughout an active medical career spanning 19 years, Dr. Chadderdon provided care at the practice location at 501 E MAIN ST until profile deactivation on 2025-10-08.

Historical Medicare Part B clinical services included exam of visual field with extended testing, photography of the retina, established patient complete exam of visual system. Public procedure reimbursement records and service volume details are provided below for historical transparency.

Practice Location & Contact Primary Location

Practice Address

501 E Main St

Marshalltown, IA 501580773

Telephone 6417521511

Fax 6417538773

Associated Practice Facility / Clinic

🏢 Excel Medical Of Marshalltown Inc Facility NPI 1770563405

Specialty Benchmarks & Practice Insights

Comparative analytics for Optometrist in Marshalltown, IA

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 18.5 Yrs

State Avg: 23.1 Yrs

Regional Practice Density

14 Specialists

Practicing in Marshalltown, IA (704 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

59.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

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
92083 Exam of visual field with extended testing	304	181	$162.37	$58.79
92250 Photography of the retina	259	179	$143.11	$34.59
92014 Established patient complete exam of visual system	224	209	$294.00	$120.36
92133 Imaging of optic nerve	183	121	$98.33	$32.51
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	160	128	$198.00	$122.96
92134 Imaging of retina	145	109	$98.03	$36.38
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	143	88	$83.00	$53.84
92020 Examination of cornea and iris using lens device and slit lamp	54	53	$69.00	$26.28
92082 Exam of visual field with intermediate testing	52	47	$125.63	$44.37
99213 Established patient office or other outpatient visit, typically 15 minutes	36	28	$124.00	$86.83
92283 Extended color vision examination	31	30	$124.00	$50.09
92284 Evaluation of eye adaptation to light and dark with interpretation and report	30	20	$132.00	$33.43
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	27	25	$318.00	$118.51
92286 Imaging of front third of eye using a special microscope	24	23	$140.25	$34.12

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92250 Photography of the retina	428	263	$159.00	$34.19
92083 Exam of visual field with extended testing	372	195	$174.00	$56.20
92014 Established patient complete exam of visual system	267	247	$294.00	$117.76
92133 Imaging of optic nerve	223	137	$102.00	$31.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	192	153	$198.00	$118.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	178	101	$83.00	$52.26
92134 Imaging of retina	173	121	$102.00	$34.98
92082 Exam of visual field with intermediate testing	62	55	$145.00	$42.97
92020 Examination of cornea and iris using lens device and slit lamp	54	50	$69.00	$25.88
99213 Established patient office or other outpatient visit, typically 15 minutes	52	35	$124.00	$83.80
92283 Extended color vision examination	34	31	$119.00	$48.22
92284 Evaluation of eye adaptation to light and dark with interpretation and report	32	19	$132.00	$41.51
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	32	31	$318.00	$116.47
92286 Imaging of front third of eye using a special microscope	29	27	$220.00	$33.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92083 Exam of visual field with extended testing	374	201	$174.00	$57.79
92250 Photography of the retina	348	262	$159.00	$34.16
92014 Established patient complete exam of visual system	271	258	$278.89	$119.01
92133 Imaging of optic nerve	201	128	$102.00	$33.94
92134 Imaging of retina	195	135	$102.00	$37.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	174	136	$177.84	$120.67
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	144	101	$73.30	$52.61
99213 Established patient office or other outpatient visit, typically 15 minutes	69	41	$115.13	$85.29
92082 Exam of visual field with intermediate testing	54	49	$145.00	$43.24
92020 Examination of cornea and iris using lens device and slit lamp	41	40	$59.73	$26.46
92286 Imaging of front third of eye using a special microscope	30	29	$220.00	$34.48
92284 Evaluation of eye adaptation to light and dark with interpretation and report	29	19	$132.00	$52.57
92283 Extended color vision examination	27	24	$109.00	$47.75
76513 Ultrasound scan of eye using water bath method	24	23	$321.00	$88.60
92273 Full field recording of retinal electrical responses to external stimuli with interpretation and report	15	15	$318.00	$118.00

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92083 Exam of visual field with extended testing	409	218	$174.00	$59.24
92250 Photography of the retina	360	281	$159.00	$36.12
92014 Established patient complete exam of visual system	281	260	$278.00	$120.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	220	168	$177.00	$123.25
92134 Imaging of retina	202	134	$102.00	$38.88
92133 Imaging of optic nerve	196	144	$102.00	$35.14
99213 Established patient office or other outpatient visit, typically 15 minutes	100	61	$115.00	$86.67
92082 Exam of visual field with intermediate testing	68	61	$145.00	$44.77
95930 Measurement of nerve conduction using visual stimulation testing with report	53	52	$317.00	$63.35
92020 Examination of cornea and iris using lens device and slit lamp	45	42	$59.00	$26.74
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	39	39	$72.00	$53.20
76513 Ultrasound scan of eye using water bath method	36	34	$321.00	$110.96
92286 Imaging of front third of eye using a special microscope	31	29	$220.00	$35.20
92283 Extended color vision examination	31	30	$109.00	$49.35
92284 Evaluation of eye adaptation to light and dark with interpretation and report	28	16	$132.00	$54.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92083 Exam of visual field with extended testing	313	194	$174.00	$58.77
92250 Photography of the retina	292	262	$159.00	$40.91
92014 Established patient complete exam of visual system	271	262	$278.00	$120.57
92134 Imaging of retina	158	116	$102.00	$38.24
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	145	120	$177.00	$103.62
92133 Imaging of optic nerve	144	115	$102.00	$34.29
95930 Measurement of nerve conduction using visual stimulation testing with report	76	74	$317.00	$62.49
99213 Established patient office or other outpatient visit, typically 15 minutes	73	49	$115.00	$71.06
92082 Exam of visual field with intermediate testing	65	59	$145.00	$44.72
92020 Examination of cornea and iris using lens device and slit lamp	47	46	$59.00	$26.66
76513 Ultrasound scan of eye using water bath method	39	38	$321.00	$139.89
92012 Established patient problem focused exam of visual system	36	32	$189.00	$84.12
92283 Extended color vision examination	36	36	$109.00	$48.98
92286 Imaging of front third of eye using a special microscope	31	31	$220.00	$35.07
92004 New patient complete exam of visual system	16	16	$321.00	$144.25
66984 Removal of cataract with insertion of lens	14	11	$312.00	$103.66
92284 Evaluation of eye adaptation to light and dark with interpretation and report	12	11	$132.00	$55.25

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92083 Exam of visual field with extended testing	357	230	$174.00	$57.63
92250 Photography of the retina	311	295	$159.00	$44.69
92014 Established patient complete exam of visual system	290	287	$278.00	$118.65
92133 Imaging of optic nerve	154	134	$102.00	$32.81
92134 Imaging of retina	142	107	$102.00	$37.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	128	112	$175.00	$101.86
99213 Established patient office or other outpatient visit, typically 15 minutes	118	73	$115.00	$69.36
95930 Measurement of nerve conduction using visual stimulation testing with report	103	101	$317.00	$62.69
92082 Exam of visual field with intermediate testing	71	65	$145.00	$41.57
76513 Ultrasound scan of eye using water bath method	70	69	$310.94	$177.74
92020 Examination of cornea and iris using lens device and slit lamp	56	56	$58.46	$26.21
92286 Imaging of front third of eye using a special microscope	46	45	$220.00	$33.62
92012 Established patient problem focused exam of visual system	42	38	$188.29	$82.57
92283 Extended color vision examination	35	34	$105.14	$47.84
66984 Removal of cataract with insertion of lens	30	21	$291.73	$119.14
92274 Measurement of retinal and optic nerve function targeting multiple separate locations	19	19	$318.00	$84.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92083 Exam of visual field with extended testing	433	268	$174.00	$54.18
92250 Photography of the retina	351	333	$159.45	$47.12
92014 Established patient complete exam of visual system	332	326	$278.00	$111.98
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	182	146	$161.28	$95.48
92134 Imaging of retina	178	123	$102.57	$35.43
92133 Imaging of optic nerve	162	144	$102.00	$30.86
95930 Measurement of nerve conduction using visual stimulation testing with report	129	128	$317.00	$60.04
99213 Established patient office or other outpatient visit, typically 15 minutes	116	88	$114.79	$63.90
76513 Ultrasound scan of eye using water bath method	85	85	$285.29	$160.56
92082 Exam of visual field with intermediate testing	77	72	$145.00	$39.24
92286 Imaging of front third of eye using a special microscope	68	66	$220.00	$31.35
92020 Examination of cornea and iris using lens device and slit lamp	64	64	$56.72	$24.06
92275 Recording of retinal electrical responses to external stimuli	57	56	$318.00	$130.01
92283 Extended color vision examination	37	37	$93.76	$44.61
92012 Established patient problem focused exam of visual system	31	30	$178.00	$77.45
66984 Removal of cataract with insertion of lens	30	20	$274.00	$109.75
92225 Examination of eye by ophthalmoscope with retinal drawing	26	26	$87.69	$37.74
92004 New patient complete exam of visual system	12	12	$303.67	$135.05
92226 Examination of eye by ophthalmoscope with retinal drawing	12	11	$85.00	$37.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92083 Exam of visual field with extended testing	496	295	$174.00	$51.84
92250 Photography of the retina	402	385	$159.40	$55.50
92014 Established patient complete exam of visual system	378	370	$278.06	$108.20
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	197	161	$161.00	$93.61
92133 Imaging of optic nerve	194	169	$102.00	$30.03
92134 Imaging of retina	190	133	$101.91	$34.38
95930 Measurement of nerve conduction using visual stimulation testing with report	136	133	$317.00	$107.88
92012 Established patient problem focused exam of visual system	108	86	$178.00	$74.38
76513 Ultrasound scan of eye using water bath method	100	94	$272.15	$155.08
92082 Exam of visual field with intermediate testing	93	89	$145.00	$38.78
92020 Examination of cornea and iris using lens device and slit lamp	87	85	$57.17	$23.78
92225 Examination of eye by ophthalmoscope with retinal drawing	74	67	$90.89	$39.32
92286 Imaging of front third of eye using a special microscope	72	71	$220.00	$30.93
99213 Established patient office or other outpatient visit, typically 15 minutes	69	54	$109.00	$63.04
92226 Examination of eye by ophthalmoscope with retinal drawing	63	49	$73.67	$32.64
92275 Recording of retinal electrical responses to external stimuli	60	60	$315.83	$126.70
92004 New patient complete exam of visual system	38	38	$302.00	$131.23
66984 Removal of cataract with insertion of lens	30	17	$274.00	$110.65
92283 Extended color vision examination	15	15	$81.93	$45.27

Medical Specialties & State Licenses

Optometrist Primary Specialty

NUCC Taxonomy Code: 152W00000X

State License IA 01813

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Practice Associates & Co-Workers

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

5 Associated Practitioners

Dr. Kyle Carnahan , OD

Optometrist

NPI 1184395816

Doctor of Optometry

Dr. Connie Feldman , OD

Optometrist

NPI 1245200583

Doctor of Optometry

Dr. Collin Edwards , OD

Optometrist

NPI 1780245472

Doctor of Optometry

Dr. Kacie Monroe , OD

Optometrist

NPI 1811283799

Doctor of Optometry

Dr. Brent Thornton , OD

Optometrist

NPI 1841545225

Doctor of Optometry

Career & Practice History Timeline

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

7 Historical Events

⚠️

NPI Profile Deactivated October 08, 2025

Record deactivated on October 08, 2025

✅

NPI Profile Active March 28, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location March 28, 2008

Registered at 501 E MAIN ST, MARSHALLTOWN, IA 501580773 (Tel: 6417521511)

📍

Updated Business Mailing Address March 28, 2008

Registered at 501 E MAIN ST, PO BOX 773, MARSHALLTOWN, IA 501580773 (Tel: 6417521511)

👤

Provider Name / Credentials Updated March 28, 2008

Recorded as ABIE CHADDERDON, OD

🎓

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

Optometrist (License #01813 in IA)

🟢

Initial NPI Registration & Enumeration January 26, 2006

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: 1922078278

Entity Type:

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

Enumeration Date: January 26, 2006

Last Update: March 28, 2008

Deactivation Date: October 08, 2025

Update or Correct Profile

Mailing Address

501 E Main St, Po Box 773

Marshalltown, IA 501580773

Phone: 6417521511

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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