Gregory George Machiko, MD
Gastroenterology Physician · Canonsburg, PA
Gregory George Machiko, MD is a gastroenterology physician with a practice address in Canonsburg, Pennsylvania, and NPI 1831191618, issued on Aug 11, 2005. Check the license (Pennsylvania MD036665E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Gregory George Machiko
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD036665E PA
Self-reported in NPPES; status is on the state search - Practice location
- 161 Waterdam Road, Canonsburg, PA 15317
- Phone
- (412) 359-8900
- Enumerated
- Aug 11, 2005
- Record last updated
- Nov 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (412) 359-8977
- Medicaid ID
- 103517173 PA
- Medicare enrollment
- Enrolled (PECOS I20040916000310); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,049 in Pennsylvania → Look up another NPI →
Verify Gregory George Machiko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD036665ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% more Medicare Part D claims than the average gastroenterology physician in 2024
1,180 Medicare Part D claims for 470 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Pantoprazole Sodium643 claims
- Sod Sulf-Potass Sulf-Mag Sulf191 claims
- Omeprazole84 claims
- Gavilyte-G56 claims
- Gavilyte-C37 claims
- Linzess31 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $994.48
39 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Allegheny ClinicCanonsburg, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory George Machiko among 1,049 gastroenterology physician records in Pennsylvania
Gregory George Machiko, MD is one of 1,049 gastroenterology physician records with a practice address in Pennsylvania. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1985 · median 2003 among the 769 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Pennsylvania
There are 1,049 gastroenterology physician records in Pennsylvania.
All 1,049 in Pennsylvania → Every provider in Canonsburg → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- John Smith, MDCanonsburg, PA 153171023085719
- Dino Boni, MDAvella, PA 153121710983192
- Richard Kenney, D.O.Washington, PA 153011861448672
- Robert Flanigan, M.D.Pittsburgh, PA 152431922002385
- Mark Cedar, D.O.Pittsburgh, PA 152411629053053
- Bridger Clarke, M.D.Pittsburgh, PA 152411932324506
- David Glorioso, M.D.Pittsburgh, PA 152411669457230
- Jungmin Lee, M.D.Pittsburgh, PA 152411891134714
Common questions
What is Gregory George Machiko, MD's NPI number?
Gregory George Machiko, MD's National Provider Identifier (NPI) is 1831191618, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory George Machiko, MD located?
The NPPES record lists a practice address at 161 Waterdam Road, Canonsburg, PA, 15317. Phone: (412) 359-8900. Providers update this record themselves, so call before visiting.
How can I verify Gregory George Machiko, MD's license?
NPPES lists Pennsylvania license number MD036665E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory George Machiko, MD prescribe under Medicare Part D?
In 2024, Gregory George Machiko, MD had 1,180 Medicare Part D claims for 470 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Gregory George Machiko, MD's MIPS final score?
The 2023 MIPS final score is 93.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.