Dr. David Thomas Harrison , DO
Colon & Rectal Surgery • Indianapolis, IN
3660 Guion Rd, Ste 330
Indianapolis, IN 462221697
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. David Harrison is listed in NPPES under Colon & Rectal Surgery.
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NPI assigned on April 20, 2006; this date does not establish years in practice.
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Published CMS data list 174 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 99213 — Established patient outpatient office visit: 46 service units.
- 45384 — Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery: 42 service units.
- 99212 — Established patient outpatient office visit: 38 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See all 5 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 37 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:
- Dicyclomine Hcl — 21 prescription fills, including refills.
- Mesalamine — 16 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 the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 85% of clinicians listed under Colon & Rectal Surgery in Indianapolis, IN (2024, 18 clinicians with data). Median for this group: 193. Middle half: 125 to 295.
Fewer Part D prescriptions than 90% of clinicians listed under Colon & Rectal Surgery in Indiana (2024, 43 clinicians with data). Median for this group: 149. Middle half: 93 to 289.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 332 in 2019 to 174 in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019–2023.
Practice Location & Contact Primary Location
3660 Guion Rd
Ste 330
Indianapolis, IN 462221697
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Colon & Rectal Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $19,331 in 2023
The total amount Medicare approved for these services in 2023. 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, 2023.
Paid by Medicare
About $13,928 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, 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, 2023.
30-day fills
63 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
$4,776 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.
Open Payments general payments, program year 2023
All general payments: $68.28 across 4 records.
By nature of payment
- Food and Beverage: $68.28 across 4 records.
Reporting-company totals
- ABBVIE INC.: $32.36 across 2 records.
- Sebela Pharmaceuticals Inc.: $19.13 across 1 record.
- Exact Sciences Corporation: $16.79 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
NPI first issued
2006
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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.
Compared with the same specialty in Indianapolis and Indiana
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 85% of clinicians listed under Colon & Rectal Surgery in Indianapolis, IN (2024, 18 clinicians with data). Median for this group: 193. Middle half: 125 to 295.
Fewer Part D prescriptions than 90% of clinicians listed under Colon & Rectal Surgery in Indiana (2024, 43 clinicians with data). Median for this group: 149. Middle half: 93 to 289.
Part D drug cost
Close to the middle for clinicians listed under Colon & Rectal Surgery in Indianapolis, IN (2024, 18 clinicians with data). Median for this group: $4,692. Middle half: $1,277 to $11,262.
Close to the middle for clinicians listed under Colon & Rectal Surgery in Indiana (2024, 43 clinicians with data). Median for this group: $5,370. Middle half: $1,185 to $14,498.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Harrison are from 2023.
20 active clinicians are listed under Colon & Rectal Surgery with a practice address in Indianapolis, IN (58 in Indiana).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Indianapolis
55% of these 20 clinicians have the CMS telehealth indicator.
85% of these 20 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 48% from 332 in 2019 to 174 in 2023.
- 2019: 332
- 2020: 219
- 2021: 174
- 2022: 154
- 2023: 174
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Medicare-allowed amount
Medicare-allowed amount decreased 40% from $32,154 in 2019 to $19,331 in 2023.
- 2019: $32,154
- 2020: $22,584
- 2021: $19,558
- 2022: $16,003
- 2023: $19,331
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Paid by Medicare
Paid by Medicare decreased 44% from $24,997 in 2019 to $13,928 in 2023.
- 2019: $24,997
- 2020: $16,585
- 2021: $14,564
- 2022: $11,489
- 2023: $13,928
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 75% from 147 in 2020 to 37 in 2024.
- 2020: 147
- 2021: 125
- 2022: 151
- 2023: 86
- 2024: 37
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30-day fills
30-day fills decreased 73% from 238 in 2020 to 63 in 2024.
- 2020: 238
- 2021: 223
- 2022: 249
- 2023: 176
- 2024: 63
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Part D drug cost
Part D drug cost decreased 80% from $23,488 in 2020 to $4,776 in 2024.
- 2020: $23,488
- 2021: $32,933
- 2022: $41,697
- 2023: $14,512
- 2024: $4,776
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $42.31 in 2020 to $68.28 in 2023.
- 2020: $42.31
- 2022: $40.31
- 2023: $68.28
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), 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 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $68.28.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Sebela Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
SUTAB | General | $19.13 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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VIBERZI | General | $17.28 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $16.79 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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LINZESS | General | $15.08 |
Source: CMS Open Payments, program year 2023, 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 2016–2022 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, 2017–2023; 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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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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46 | 40 | $124.13 | $83.42 |
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45384
Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery
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42 | 42 | $644.24 | $172.06 |
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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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38 | 26 | $72.00 | $52.36 |
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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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37 | 37 | $164.00 | $103.93 |
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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 | $738.00 | $221.12 |
Source: CMS Part B by Provider and Service, 2023; 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 |
|---|---|---|---|---|---|
| Dicyclomine Hcl | Dicyclomine Hcl | 21 | 995 | $422.99 | — |
| Mesalamine | Mesalamine | 16 | 834 | $4,352.69 | — |
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: 2024-02-07NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Orthopaedic Surgery
Doctor of Osteopathic Medicine (D.O.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 8314 EAGLE CREST LN, INDIANAPOLIS, IN 462349528
NPI status registered as active in NPPES database
Registered at 3660 GUION RD, STE 330, INDIANAPOLIS, IN 462221697 (Tel: 3179231033)
Registered at 6626 E 75TH ST, STE 500, INDIANAPOLIS, IN 462502805
Recorded as DAVID HARRISON, DO
Colon & Rectal Surgery (license number reported to NPPES: IN 02000816)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Colon & Rectal Surgery Specialists in Indianapolis
- Dr. Sarah Jochum, MD
- Dr. Sanjay Mohanty, MD
- Dr. Patrick White, MD
- Dr. Ateet Shah, MD
- Dr. Joshua Waters, MD
- Dr. Tobi Reidy, DO
Mailing Address
8314 Eagle Crest Ln
Indianapolis, IN 462349528