Gregory Powell, MD
Gastroenterology Physician · Willoughby, OH
Gregory Powell, MD is a gastroenterology physician with a practice address in Willoughby, Ohio, and NPI 1588868541, issued on Jun 13, 2007. Check the license (Ohio 35082852, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Gregory Powell
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 35082852 OH
Self-reported in NPPES; status is on the state search - Practice location
- 36100 Euclid Ave, Willoughby, OH 44094
- Phone
- (440) 942-7909
- Enumerated
- Jun 13, 2007
- Record last updated
- Jun 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (440) 942-7846
- Medicaid ID
- 2424111 OH
- Medicare enrollment
- Enrolled (PECOS I20070913000587); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 741 in Ohio → Look up another NPI →
Also registered at 36100 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mohamed Atassi, MDCardiovascular Disease Physician1417916867
- Jamal Azem, MDNephrology Physician1518061811
- Khalil Azem, MDOtolaryngology Physician1508859497
- Laura Bailey, MDInternal Medicine Physician1770699019
- Hannah Bourgeois, R.PH.Pharmacist1932656576
Verify Gregory Powell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35082852Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% more Medicare Part D claims than the average gastroenterology physician in 2024
1,056 Medicare Part D claims for 353 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Pantoprazole Sodium354 claims
- Omeprazole86 claims
- Gavilyte-G62 claims
- Famotidine54 claims
- Sod Sulf-Potass Sulf-Mag Sulf39 claims
- Balsalazide Disodium31 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.
One hospital affiliation
- Cleveland ClinicBeachwood, OH · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Gregory Powell among 741 gastroenterology physician records in Ohio
Gregory Powell, MD is one of 741 gastroenterology physician records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.
- NPI issued2007 · 53% of these records are older, 38% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2000 · median 2003 among the 540 with a school on file
- Record last updated2014 · 48% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Ohio
There are 741 gastroenterology physician records in Ohio.
All 741 in Ohio → Every provider in Willoughby → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ayyappah Gopalakrishna Pillai, M.DWilloughby, OH 440941134042310
- Neil Jacobson, MDWilloughby, OH 440941124012547
- Michael Kirsch, MDWilloughby, OH 440941942294368
- James Loveland, MDWilloughby, OH 440941912991316
- Keyur Parikh, M.D.Willoughby, OH 440941700157450
- Eshwar Punjabi, M.D.Willoughby, OH 440941861421984
- Franjo Vladic, MDWilloughby, OH 440941770577199
- Carole Macaron, M.D.Cleveland, OH 441031801061056
Common questions
What is Gregory Powell, MD's NPI number?
Gregory Powell, MD's National Provider Identifier (NPI) is 1588868541, issued on Jun 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Powell, MD located?
The NPPES record lists a practice address at 36100 Euclid Ave, Willoughby, OH, 44094. Phone: (440) 942-7909. Providers update this record themselves, so call before visiting.
How can I verify Gregory Powell, MD's license?
NPPES lists Ohio license number 35082852, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Powell, MD prescribe under Medicare Part D?
In 2024, Gregory Powell, MD had 1,056 Medicare Part D claims for 353 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.