Dr. William Phillip Main , DO
Colon & Rectal Surgery • Columbus, OH
4882 E Main St Ste 220
Columbus, OH 432133537
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. William Main is listed in NPPES under Colon & Rectal Surgery.
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NPI assigned on June 12, 2012; this date does not establish years in practice.
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Published CMS data list 133 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99212 — Established patient outpatient office visit: 39 service units.
- 99202 — New patient outpatient office visit: 31 service units.
- 46600 — Diagnostic exam of anus using an endoscope: 21 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 6 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 90 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) — 31 prescription fills, including refills.
- Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) — 20 prescription fills, including refills.
- Mesalamine — 15 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Colon & Rectal Surgery in Columbus, OH (2024, 19 clinicians with data). Median for this group: 132. Middle half: 71 to 197.
Fewer Medicare Part B services than 60% of clinicians listed under Colon & Rectal Surgery in Ohio (2024, 74 clinicians with data). Median for this group: 182. Middle half: 78 to 295.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 162 in 2020 to 133 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
4882 E Main St Ste 220
Columbus, OH 432133537
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Cincinnati, OH. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Ohiohealth Corporation. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2012
What Public CMS Data Show
Colon & Rectal Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
114 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $12,356 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $9,149 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
96 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$8,533 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $178.13 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
Years since graduation
14 years (graduated 2012)
CMS Doctors and Clinicians data list 2012 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2012
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Main has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Main as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Columbus and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Colon & Rectal Surgery in Columbus, OH (2024, 19 clinicians with data). Median for this group: 132. Middle half: 71 to 197.
Fewer Medicare Part B services than 60% of clinicians listed under Colon & Rectal Surgery in Ohio (2024, 74 clinicians with data). Median for this group: 182. Middle half: 78 to 295.
Medicare-allowed amount
A lower Medicare-allowed amount than 60% of clinicians listed under Colon & Rectal Surgery in Columbus, OH (2024, 19 clinicians with data). Median for this group: $12,886. Middle half: $7,909 to $28,314.
A lower Medicare-allowed amount than 65% of clinicians listed under Colon & Rectal Surgery in Ohio (2024, 74 clinicians with data). Median for this group: $21,398. Middle half: $8,506 to $38,027.
Paid by Medicare
A lower Medicare payment amount than 60% of clinicians listed under Colon & Rectal Surgery in Columbus, OH (2024, 19 clinicians with data). Median for this group: $9,750. Middle half: $5,822 to $23,200.
A lower Medicare payment amount than 65% of clinicians listed under Colon & Rectal Surgery in Ohio (2024, 74 clinicians with data). Median for this group: $16,457. Middle half: $6,562 to $29,150.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Colon & Rectal Surgery in Columbus, OH (2024, 14 clinicians with data). Median for this group: 95. Middle half: 42 to 203.
Close to the middle for clinicians listed under Colon & Rectal Surgery in Ohio (2024, 64 clinicians with data). Median for this group: 74. Middle half: 38 to 135.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under Colon & Rectal Surgery in Columbus, OH (2024, 14 clinicians with data). Median for this group: $3,153. Middle half: $320 to $8,464.
A higher Part D drug cost than 80% of clinicians listed under Colon & Rectal Surgery in Ohio (2024, 64 clinicians with data). Median for this group: $786. Middle half: $240 to $5,971.
23 active clinicians are listed under Colon & Rectal Surgery with a practice address in Columbus, OH (123 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Columbus
43.5% of these 23 clinicians have the CMS telehealth indicator.
91.3% of these 23 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 18% from 162 in 2020 to 133 in 2024.
- 2020: 162
- 2021: 178
- 2022: 136
- 2023: 163
- 2024: 133
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Medicare-allowed amount
Medicare-allowed amount decreased 18% from $15,105 in 2020 to $12,356 in 2024.
- 2020: $15,105
- 2021: $17,720
- 2022: $13,804
- 2023: $15,250
- 2024: $12,356
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Paid by Medicare
Paid by Medicare decreased 18% from $11,213 in 2020 to $9,149 in 2024.
- 2020: $11,213
- 2021: $13,367
- 2022: $10,474
- 2023: $11,251
- 2024: $9,149
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 291% from 23 in 2020 to 90 in 2024.
- 2020: 23
- 2021: 82
- 2022: 89
- 2023: 118
- 2024: 90
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30-day fills
30-day fills increased 284% from 25 in 2020 to 96 in 2024.
- 2020: 25
- 2021: 96
- 2022: 90
- 2023: 129
- 2024: 96
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Part D drug cost
Part D drug cost decreased 15% from $10,092 in 2020 to $8,533 in 2024.
- 2020: $10,092
- 2021: $17,864
- 2022: $2,168
- 2023: $8,020
- 2024: $8,533
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $324.12 in 2019 to $178.13 in 2025.
- 2019: $324.12
- 2022: $173.15
- 2023: $339.34
- 2024: $193.26
- 2025: $178.13
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $178.13.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
ESPRIT | General | $178.13 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2017–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2018–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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39 | 32 | $76.00 | $54.68 |
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99202
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more
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31 | 31 | $130.00 | $67.97 |
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46600
Diagnostic exam of anus using an endoscope
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21 | 21 | $275.00 | $111.41 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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19 | 19 | $189.00 | $109.27 |
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99221
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes
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12 | 12 | $195.00 | $81.44 |
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45385
Removal of polyps or growths of large bowel using an endoscope with mechanical snare
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11 | 11 | $948.00 | $247.54 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Gavilyte-C | Peg3350/Sod Sulf,bicarb,cl/Kcl | 31 | 61 | $524.28 | 31 |
| Gavilyte-G | Peg3350/Sod Sulf,bicarb,cl/Kcl | 20 | 22 | $240.17 | 20 |
| Mesalamine | Mesalamine | 15 | 630 | $7,355.67 | — |
| Hydrocortisone | Hydrocortisone | 13 | 282 | $113.41 | 11 |
| Peg 3350-Electrolyte | Sodium Chloride/Nahco3/Kcl/Peg | 11 | 13 | $299.96 | 11 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-09-14NUCC Taxonomy Code: 208C00000X
A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20180620003519
OH
2466707153
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Ohiohealth Corporation
4882 E Main St, Columbus, OH 432133189
Phone: 6148641000
Secondary Practice Locations
375 Dixmyth Ave
Cincinnati, OH 452202475
Phone: 5138623562
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Colon & Rectal Surgery
Doctor of Medicine (M.D.)
Colon & Rectal Surgery
Doctor of Medicine (M.D.), Master of Public Health, Master of Science
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4882 E MAIN ST STE 220, COLUMBUS, OH 432133537 (Tel: 6148641000)
Registered at PO BOX 7527, DUBLIN, OH 430170727
NPI status registered as active in NPPES database
Registered at 375 DIXMYTH AVE, CINCINNATI, OH 452202475 (Tel: 5138623562)
Registered at 375 DIXMYTH AVE, CINCINNATI, OH 452202475 (Tel: 5138623562)
Recorded as WILLIAM MAIN, D.O.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Colon & Rectal Surgery Specialists in Columbus
- Dr. Anantha Padmanabhan, MD
- Dr. Alessandra Gasior, DO
- Dr. Lisa Cunningham, MD
- Dr. Matthew Kalady, MD
- Dr. Michael Rao, MD, MPH, MS
- Dr. Melinda Jack, MD
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Mailing Address
Po Box 7527
Dublin, OH 430170727